Page 1 Grid Solutions Motor Protection System Motor Protection, Control and Management Instruction manual Product version: 2.0x GE publication code: 1601-0450-A8 (GEK-119649G) *1601-0450-A8*...
Page 2 The contents of this manual are the property of GE Multilin Inc. This documentation is furnished on license and may not be reproduced in whole or in part without the permission of GE Multilin. The content of this manual is for informational use only and is subject to change without notice.
Page 3: Table Of Contents
Table of Contents 1.INTRODUCTION Overview .............................. 1 - 1 Description of the 869 Motor Protection System.............. 1 - 2 Security Overview..........................1 - 7 869 Order Codes..........................1 - 8 Specifications...........................1 - 11 Device ................................1 - 11 Protection..............................1 - 11 Control .................................
Page 4 4.SETPOINTS Setpoints Main Menu ........................4 - 1 Setpoints Entry Methods ........................4 - 2 Common Setpoints........................... 4 - 3 Logic Diagrams............................4 - 4 Setpoints Text Abbreviations....................... 4 - 5 Device..............................4 - 6 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 5 Virtual Inputs ............................4 - 91 Analog Inputs ............................4 - 93 Remote Inputs............................4 - 97 Outputs ...............................4 - 98 Output Relays ............................4 - 98 Output Relay 1 (F1) Trip........................4 - 100 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 6 Frequency Rate of Change (81R)....................4 - 258 Monitoring............................4 - 262 Breaker..............................4 - 262 Trip and Close Circuit Monitoring ....................4 - 262 Breaker Arcing Current........................4 - 270 Breaker Health ............................4 - 273 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 7 Output Relays ............................4 - 403 Ethernet Loopback Test........................4 - 404 5.STATUS Summary ............................. 5 - 2 Configurable SLD............................5 - 2 Annunciator ..............................5 - 3 Tab Pushbuttons............................5 - 3 Motor..............................5 - 5 Breakers ............................... 5 - 7 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 8 RTD Maximums..........................6 - 21 Analog Inputs........................... 6 - 21 FlexElements............................ 6 - 21 7.RECORDS Events..............................7 - 1 Transient Records..........................7 - 2 Fault Reports............................7 - 2 Data Logger............................7 - 2 Motor Start Records ........................7 - 2 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 9 Unscheduled Maintenance (System Interruption) ..............8 - 6 A.APPENDIX A Application Notes..........................A - 1 Contactor Current Supervision ......................A - 1 B.APPENDIX B Warranty.............................. B - 1 Revision history..........................B - 1 Major Updates ............................B - 2 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 10 VIII 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 11: Introduction Overview
Chapter 1: Introduction Introduction The Multilin 869 relay is a microprocessor-based unit intended for the management and primary protection of medium and large sized motors. Base relay models provide thermal overload and overcurrent protection plus a number of current and voltage based backup functions.
Page 12: Description Of The 869 Motor Protection System
DESCRIPTION OF THE 869 MOTOR PROTECTION SYSTEM CHAPTER 1: INTRODUCTION A summary of the available functions and a single-line diagram of protection and control features is shown below. For a complete understanding of each feature operation, refer to Chapter 4: Setpoints. The logic diagrams include a reference to every setpoint related to a feature and show all logic signals passed between individual features.
Page 13 CHAPTER 1: INTRODUCTION DESCRIPTION OF THE 869 MOTOR PROTECTION SYSTEM current and voltage phasors, such that the resulting values have no harmonic components. RMS (root mean square) values are calculated from one cycle of samples prior to filtering. Protection Elements All voltage, current and frequency protection elements are processed eight times every cycle to determine if a pickup has occurred or a timer has expired.
Page 14 DESCRIPTION OF THE 869 MOTOR PROTECTION SYSTEM CHAPTER 1: INTRODUCTION ANSI Device Description 50SG Ground Fault 50LR Mechanical Jam Neutral Instantaneous Overcurrent Phase Instantaneous Overcurrent 50_2 Negative Sequence Instantaneous Overcurrent Ground Time Overcurrent Neutral Time Overcurrent Phase Time Overcurrent AC Circuit Breaker...
Page 15 CHAPTER 1: INTRODUCTION DESCRIPTION OF THE 869 MOTOR PROTECTION SYSTEM Description Modbus User Map Motor Health Report Motor Learned Data Motor Start Records Motor Start Statistics Non-volatile Latches OPC-UA Communications Output Relays Overload Alarm Setpoint Groups (6) Short Circuit Stator Inter-Turn Fault...
Page 16 DESCRIPTION OF THE 869 MOTOR PROTECTION SYSTEM CHAPTER 1: INTRODUCTION Figure 1-2: Main Menu Hierarchy Targets Status Summary Motor Breakers Setpoints Device Switches System Last Trip Data Inputs Arc Flash Contact Inputs Outputs Output Relays Protection Virtual Inputs Monitoring Virtual Outputs...
Page 17: Security Overview
The basic security feature is present in the default offering of the 869 relay. The 869 introduces the notion of roles for different levels of authority. Roles are used as login names with associated passwords stored on the device. The following roles are available at present: Administrator, Operator, Factory and Observer, with a fixed permission structure for each one.
Page 18: Order Codes
If the user ID credential does not match one of the device local accounts, the 869 automatically forwards the request to a RADIUS server when one is provided. If a RADIUS server is provided, but is unreachable over the network, server authentication requests are denied.
Page 19 CHAPTER 1: INTRODUCTION 869 ORDER CODES Figure 1-3: 869 Order Codes 869 – E ** ** ** H * * A * N G * * N * Interface 869 Motor Protection System Application Standard 1A three-phase current inputs (J1)
Page 20 When the advanced communications option is selected, the Ethernet port on the main CPU is disabled. Retrofit order codes must be configured using the GE Multilin Online Store (OLS) based on FASTPATH: the existing relay order code and additional requirements.
Page 21: Specifications
Curve Timing Accuracy: ........at >1.1 x PKP: 3.5% of operate time ± ½ cycle (whichever is greater) from pickup to operate Timer Accuracy: ..........± 3% of operate time or ± ½ cycle (whichever is greater) 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–11...
Page 22 Pickup Level: ............-30.000 to 30.000 pu in steps of 0.001 pu Hysteresis: ............. 0.1 to 50.0% in steps of 0.1% Delta dt:..............40 msec to 45 days Pickup and dropout delays:......0.000 to 6000.000 s in steps of 0.001 s 1–12 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 23 Pickup Delay: ............0.10 to 180.00 s in steps of 0.01 Dropout Delay:.............0.00 to 180.00 s in steps of 0.01 Timer Accuracy: ..........±3% of delay setting time or ±20 ms, whichever is greater 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–13...
Page 24 < 30 ms at 1.1 x pickup at 50Hz Curve Timing Accuracy:........at > 1.1 x Pickup: ± 3% of curve delay or ± 1 cycle (whichever is greater) from pickup to operate 1–14 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 25 Current Sensitivity Threshold: .......0.05 x CT Characteristic Angle:.........0º to 359º in steps of 1° Angle Accuracy: ..........± 2º Operation Time (FlexLogic™ operands): ..Reverse to Forward transition: < 12 ms, typically; Forward to Reverse transition: <8 ms, typically 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–15...
Page 26 Configuration: ............ABC or ACB phase rotation Pickup/Dropout Time Delay: ......0.00 to 180.00 s in steps of 0.01 s Timer Accuracy:..........±3% of delay setting or ±1% cycle (whichever is greater) from pickup to operate 1–16 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 27 Level Accuracy:............±0.5% of reading from 10 to 208 V Phases Required for Operation: ....Any one, Any two, All three Undervoltage Curves: ........Definite Time, GE IAV Inverse Time or FlexCurves A/B/C/D Pickup Time Delay:..........0.000 to 6000.000 s in steps of 0.001s Operate Time:............<...
Page 28 Operate Time: ............<45 ms at 60 Hz,<50 ms at 50 Hz Timer Accuracy:..........±3% of delay setting or ± 2 power cycles (whichever is greater) from pickup to operate Stages: ..............Trip and Alarm 1–18 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 29 16.7 ms (or 20 ms at 50 Hz) for each additional cycle in the filter interval for the following protection elements: Acceleration Time, Current Unbalance, Mechanical Jam, Overload Alarm, Thermal Model, Undercurent, Power Factor, and Underpower. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–19...
Page 30: Control
Timers:..............0.000 to 6000.000 s in steps of 0.001 s TIME BETWEEN STARTS Time Between Starts:........0 to 300 minutes in steps of 1 Timer Accuracy:..........±2s or ±1% of total time (whichever is greater) 1–20 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 31: Monitoring
Block Interval / Rolling Demand, time interval (programmed): 5, 10, 15, 20, 30 minutes Current Pickup Level:.........10 to 10000 in steps of 1 A Dropout Level: ............96-98% of Pickup level Level Accuracy:............± 2% 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–21...
Page 32 Timer Accuracy:..........±3% of operate time or ± 1/4 cycle (whichever is greater) TRIP CIRCUIT MONITOR (TCM) Applicable Voltage: ..........20 to 250 VDC Trickle Current:.............1 to 2.5 mA Timing Accuracy:..........± 3 % or ± 4 ms, whichever is greater 1–22 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 33: Recording
Inputs:...............Any analog parameter from the list of available analog parameters Data Collection Mode:........Continuous, Triggered Trigger Source:.............Any digital flag from the list of digital flags Trigger Position:...........0 to 50% in steps of 1% Channel 1(16) Mode:..........Sample, Min, Max, Mean 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–23...
Page 34: User-Programmable Elements
Reset points:............40 (0.00 to 0.98 x pickup) Operate points:............ 80 (1.03 to 20.0 x pickup) Time delay:............0 to 200,000,000 ms in steps of 1 ms Saturation level: ..........20 times the pickup level 1–24 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 35: Metering
Reactive Power (Vars) Range: ..............-214748364.8 kvar to 214748364.7 kvar Parameters:............3-phase; per phase if VT is Wye Accuracy:..............± 1.0% of reading or 0.2 kvar (whichever is greater) at -0.2 < PF ≤ 0.2 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–25...
Page 36 I > 0.4 x CT: ± 0.01 Hz (input frequency 15 to 70 Hz) CURRENT AND VOLTAGE HARMONICS Parameters:............Magnitude of each harmonic and THD Range:..............2 to 25 harmonic: per-phase displayed as % of f fundamental frequency THD: per-phase displayed as % of f 1–26 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 37: Inputs
Sampling Interval: ..........Typically 500 ms FREQUENCY Nominal frequency setting: ......50 Hz, 60 Hz Sampling frequency:.........64 samples per power cycle 128 samples per power cycle (available for transient recorder Tracking frequency range:......3 to 72 Hz 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–27...
Page 38: Outputs
Driving Signal: ............any Analog quantity Sampling Interval: ..........Typically 500 ms Upper and lower limit (for the driving signal): ....... -90 to 90 pu in steps of 0.001 1–28 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 39 Mode:................3-phase positive and negative active energy measurement, 3-phase positive and negative reactive energy measurements Principle:..............Pulsed output is energized for one second and then de- energized for one second after the programed energy increment. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–29...
Page 40: Power Supply
Parity: ............... None, Odd, Even Protocol:..............Modbus RTU, DNP 3.0, IEC 60870-5-103 Maximum distance: ........... 1200 m (4000 feet) Isolation: ..............2 kV WIFI Standard specification:........IEEE802.11bgn Range:..............30 ft (direct line of sight) 1–30 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 41: Testing & Certification
Class 2 Power magnetic Immunity IEC61000-4-8 Level 5 Pulse Magnetic Immunity IEC61000-4-9 Level 4 Damped Magnetic Immunity IEC61000-4-10 Level 4 Voltage Dip & interruption IEC61000-4-11 0, 40, 70, 80% dips, 250/300 cycle interrupts 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–31...
Page 42: Physical
Operating up to 95% (non condensing) @ 55°C (As per IEC60068-2-30 Variant 2, 6 days) Altitude: 2000m (standard base reference evaluated altitude) 5000m (maximum achievable altitude) Pollution Degree: Overvoltage Category: Ingress Protection: IP54 Front Insulation Class: Noise: 0 dB 1–32 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 43: Cautions And Warnings
Follow the requirements of this manual, including adequate wiring size and type, terminal torque settings, voltage, current magnitudes applied, and adequate isolation/ clearance in external wiring from high to low voltage circuits. Use the device only for its intended purpose and application. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–33...
Page 44 Use an external disconnect to isolate the mains voltage supply. 1–34 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 45 This product is rated to Class A emissions levels and is to be used in Utility, Substation FASTPATH: Industrial environments. Not to be used near electronic devices rated for Class B levels. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–35...
Page 46: Must-Read Information
Note that the factory role password may not be changed. • In 869 both DNP and IEC104 protocol can work at the same time, but the user has to consider that there is only one point map. So, both protocols use the same configured points.
Page 47: Storage
Customers are responsible for shipping costs to the factory, regardless of whether the unit is under warranty. • Fax a copy of the shipping information to the GE Grid Solutions service department. Use the detailed return procedure outlined at https://www.gegridsolutions.com/multilin/support/ret_proc.htm The current warranty and return information are outlined at https://www.gegridsolutions.com/multilin/warranty.htm...
Page 48 FOR FURTHER ASSISTANCE CHAPTER 1: INTRODUCTION 1–38 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 49: Installation Mechanical Installation
This section describes the mechanical installation of the system, including dimensions for mounting and information on module withdrawal and insertion. Product Identification The product identification label is located on the side panel of the 869. This label indicates the product model, serial number, and date of manufacture. Figure 2-1: Product Label...
Page 50: Dimensions
MECHANICAL INSTALLATION CHAPTER 2: INSTALLATION Dimensions The dimensions (in inches [millimeters]) of the 869 are shown below. Additional dimensions for mounting, and panel cutouts, are shown in the following sections. Figure 2-2: 869 Dimensions 2–2 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 51: Mounting
The relay can now be inserted and can be panel wired. Figure 2-3: “V” Tabs Located on Case Side 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 2–3...
Page 52: Standard Panel Mount
To avoid the potential for personal injury due to fire hazards, ensure the unit is CAUTION: mounted in a safe location and/or within an appropriate enclosure. Figure 2-4: Standard panel mount Figure 2-5: Panel cutout dimensions 2–4 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 53: Depth Reducing Collar
Dimensions in inches GE PN 'A' DEPTH 1009-0310 1 3/8" 1009-0311 3" 892703A1.dwg Figure 2-7: Depth reducing collar panel cutout 3.86 3.86 .220 4.74 3.85 9.00 3.85 4.74 7.25 Dimensions in inches 892703A1.dwg 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 2–5...
Page 54 Mount the required collar (depth 1.375" or 3") on the captive unit using eight screws as shown. Mount the combined unit and collar on the panel using eight screws as shown. 2–6 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 55: Draw-Out Unit Withdrawal And Insertion
Turn off control power before drawing out or re-inserting the relay to prevent mal- FASTPATH: operation. Follow the steps outlined in the diagrams below to insert and withdraw the Draw-out unit. Figure 2-9: Unit withdrawal and insertion diagram 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 2–7...
Page 56: Removable Power Supply
Follow the steps outlined in the Insert or Remove Power Supply diagram to insert (#1) or remove (#2) the power supply from the unit. Figure 2-10: Insert or Remove the Power Supply Figure 2-11: Unlatch Module (location is marked by arrow) 2–8 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 57: Removable Magnetic Module
CHAPTER 2: INSTALLATION MECHANICAL INSTALLATION Removable Magnetic Module Follow the steps outlined in the diagram below to insert or remove the magnetic module from the unit. Figure 2-12: Insert or Remove the Magnetic Module 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 2–9...
Page 58: Arc Flash Sensor
Sensor Installation Figure 2-13: AF Sensor - front, side and top view Review the sensor fiber handling guidelines above. FASTPATH: 2–10 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 59: Electrical Installation
The small rubber dust caps must be removed before operation. Electrical Installation Typical Wiring Diagram The following illustrates the electrical wiring of the Draw-out unit. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 2–11...
Page 60 The TRIP output relay mode depends on the Breaker/Contactor selection. If the selection is FASTPATH: “Breaker” the relay is in a non-failsafe mode, if the selection is “Contactor” the relay is in a failsafe mode. 2–12 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 61 HMI, the user must ensure that the “Operation” set point for the breaker or contactor is as noted above. Figure 2-15: Typical wiring diagram (contactor application with open transition wye- delta starter) Figure 2-16: Speed2 Motor wiring diagram 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 2–13...
Page 62: Terminal Identification
This is to ensure the adjacent lower terminal block does not interfere with the lug body. NOTE Figure 2-17: Orient the Lugs Correctly SCREW WASHER LOWER TERMI AL TERMI AL BLOCK DIVIDER Figure 2-18: Correct Installation Method 2–14 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 63 ELECTRICAL INSTALLATION Figure 2-19: INCORRECT INSTALLATION METHOD (lower lug reversed) A broad range of applications are available for the 869 relays. As such, it is not possible to present typical connections for all possible schemes. The information in this section covers the important aspects of interconnections, in the general areas of instrument transformer inputs, other inputs, outputs, communications and grounding.
Page 64 PORT 5 PORT 1 BANK - J1 BANK - K1 BANK - J2 BANK - K2 AC ANALOG INPUTS Table 2-1: Power Supply H - HV Power Supply Terminal Description Line Neutral Ground 2–16 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 65 CLOSE/AUX FC_1 NC FC_1 COM FC_1 NO FC_2 NC FC_2 COM FC_2 NO CONTACT IN_1 CONTACT IN_2 CONTACT IN_3 CONTACT IN_4 CONTACT IN_5 CONTACT IN_6 CONTACT IN_7 CONTACT IN COM DC +24 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 2–17...
Page 66: Wire Size
Use the following guideline when selecting wires or lugs to connect to terminal strips A, B, C, D, E, F, G, H, and terminal blocks J, K. Note that the first two bullets are applicable to terminal blocks J and K only: 2–18 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 67: Phase Sequence And Transformer Polarity
The 869 relay has four (4) current inputs in each J slot and K slot. Three of them are used for connecting to the phase CT phases A, B, and C. The fourth input is a ground input that can be connected to either a ground CT placed on the neutral from a Wye connected transformer winding, or to a “donut”...
Page 68: Ground And Sensitive Ground Ct Inputs
0.5 A primary may be detected with the GE Digital Energy 50:0.025 CT. Only one ground CT input tap must be used on a given unit. Note that when this CT input is selected for the Ground Fault function, fixed ratio of 50:0.025 A is used by the relay.
Page 69: Zero-Sequence Ct Installation
UNSHIELDED CABLE SHIELDED CABLE Ground connection to neutral Stress cone must be on the source side Source Source shields Ground outside CT To ground; LOAD must be on load side 996630A5 LOAD 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 2–21...
Page 70: Differential Ct Inputs
CHAPTER 2: INSTALLATION Differential CT Inputs Wiring diagrams for two differential input options are depicted in the following figures. Figure 2-25: Internal Summation Percent Differential Wiring Figure 2-26: Core Balance Percent Differential Wiring 2–22 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 71: Voltage Inputs
10 to 240 V range. The 869 supports wye and delta (or open delta) VT connections. The typical open delta VT wiring diagram is shown in the following figure: Open Delta VT Connections. The typical wye VT wiring diagram is shown in the figure: Typical Wiring diagram.
Page 72: Control Power
A tinned copper, braided, shielding and bonding cable should be used. As a minimum, 96 strands of number 34 AWG should be used. Belden catalog number 8660 is suitable. Figure 2-28: Control Power Connection 2–24 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 73: Contact Inputs
Wet or Dry input signal types can be connected to contact input terminals as shown in the figure: Wet and Dry Contact Input Wiring Examples. Dry inputs use an internal +24V that is supplied by the 869. The voltage threshold must be set to 17V for the inputs to be recognized using the internal +24V.
Page 74 Digital In_3 Digital In_10 Digital In_17 Digital In_3 Shield Digital In_10 Digital In_4 Digital In_11 Digital In_18 Digital In_4 Reserved Digital In_11 Digital In_5 Digital In_12 Digital In_19 Digital In_5 Reserved Digital In_12 2–26 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 75: Serial Communications
Voltage differences between remote ends of the communication link are not uncommon. For this reason, surge protection devices are internally installed across all RS485 terminals.Internally, an isolated power supply with an opto-coupled data interface is used to prevent noise coupling. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 2–27...
Page 76 CAUTION: that the common terminals of each RS485 port are tied together and grounded only once, at the master or at the 869. Failure to do so may result in intermittent or failed communications. The source computer/PLC/SCADA system should have similar transient protection devices installed, either internally or externally.
Page 77: Irig-B
DC level shift or amplitude modulated (AM) form. The type of form is auto-detected by the 869 relay. Third party equipment is available for generating the IRIG-B signal; this equipment may use a GPS satellite system to obtain the time reference so that devices at different geographic locations can also be synchronized.
Page 78 ELECTRICAL INSTALLATION CHAPTER 2: INSTALLATION 2–30 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 79 • Interfacing via the EnerVista 8 Series Setup software. This section provides an overview of the interfacing methods available with the 869 using the relay control panel and EnerVista 8 Series Setup software. For additional details on interface parameters (for example, settings, actual values, etc.), refer to the individual chapters.
Page 80: Interfaces Front Control Panel Interface
Pressing the Escape key during the display of the default message, returns the display to the previous display screen. Any Trip, Alarm, or Pickup operation causing a new active Target is displayed immediately, automatically overriding the Home screen. 3–2 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 81 Motor Start Statistics Harmonics Learned Data Harmonic Detection Fault Reports Power Breakers Energy Power Factor Dig Counters Current Demand Clear Records Power Demand Directional Power Arc Flash RTDs RTD Maximums Analog Inputs FlexElements 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 3–3...
Page 82: Working With Graphical Display Pages
Pages Figure 3-4: Typical paging operation from the main menu There are two ways to navigate throughout the 869 menu: using the pushbuttons corresponding to the soft tabs from the screen, or by selecting the item from the list of items on the screen using the “Up”...
Page 83 It is also used to save the desired value for any selected setpoint. The Up, and Down pushbuttons are used to select/highlight an item from a menu, as well as select a value from the list of values for a chosen item. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 3–5...
Page 84: Single Line Diagram
Setpoints > Device > Front Panel > Display Properties > Color Scheme Single Line Diagram for 869 and Breaker/Contactor & Motor status color The 869 has a single line diagram (SLD) that represents the power system. The single line diagram provided is pre-configured to show: •...
Page 85 Metering\CT Bank 1 -J1\J1 Ib Metering\CT Bank 1 -J1\J1 Ic Metering\CT Bank 1 -J1\J1 Ig Metering\Energy 1\Pwr1 Pos WattHours Metering\Energy 1\Pwr1 Pos VarHours Metering\Power 1\Pwr1 Real Metering\Power 1\Pwr1 Reactive Metering\Power 1\Pwr1 PF 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 3–7...
Page 86: Rugged And Membrane Front Panel Leds
• Reset mode: self-reset or latched The 869 front panel provides two columns of 7 LED indicators each, and 3 LED pushbutton indicators. The “IN-SERVICE” (LED 1) and the “PICKUP” (LED 4) indicators from the first LED column are non-programmable LEDs. The bottom 3 LED indicators from the first column, and the 7 LED indicators from the second LED column are fully programmable.
Page 87 RESET button on the front panel is pressed after the operand is reset. Default labels are shipped in the package of every 869, together with custom templates. A custom LED template is available for editing and printing, refer to publication GET-20035 from http://www.gegridsolutions.com/multilin.
Page 88: Home Screen Icons
Indicates that a setting is being saved on the relay (i.e., when changing one of relay settings). Icon is ON (relay is saving to flash memory) Icon is OFF (relay is not saving to flash memory) 3–10 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 89: Relay Messages
“CLEAR”, or by initiating a RESET command. The “CLEAR” command clears only the Target Messages, while initiating a RESET clears not only the Target Messages, but also any latched LEDs and output relays. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 3–11...
Page 90: Self-Test Errors
The Critical Failure Relay (Output Relay 8) is energized when the relay is in-service, and no NOTE: major error is present Under both conditions, the targets cannot be cleared if the error is still active. Figure 3-12: Minor Errors 3–12 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 91 CPU and LEDs, Keypad or peripheral memory devices Invalid MAC MAC address is not in Every 1 second Address the product range Calibration Error Unit has default Boot-up and Every 1 calibration values second 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 3–13...
Page 92 1. – Failure is logged after the detection of 5 consecutive failures 2. $ – is the slot ID (i.e., F, G, H etc.) 3–14 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 93: Out Of Service
The factory default flash message time is 2 seconds. Label Removal The following procedure describes how to use the label removal tool. Bend the tabs of the tool upwards as shown in the image. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 3–15...
Page 94 Slide the label tool under the user-programmable pushbutton label as shown in the next image. Make sure the bent tab is pointing away from the relay. Remove the tool and user-programmable pushbutton label as shown in image. 3–16 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 95: Software Interface
The EnerVista 8 Series Setup software can run without a 869 connected to the computer. In this case, settings may be saved to a file for future use. If a 869 is connected to a PC and communications are enabled, the 869 can be programmed from the setting screens. In addition, measured values, status and trip messages can be displayed with the actual value screens.
Page 96: Installing The Enervista 8 Series Setup Software
In the EnerVista Launchpad window, click the Add Product button and select the 869 Protection System as shown below. Select the Web option to ensure the most recent software release, or select CD if you do not have a web connection, then click the Add Now button to list software items for the 869.
Page 97 If you are going to communicate from your computer to the 869 Relay using the USB port: 10. Plug the USB cable into the USB port on the 869 Relay then into the USB port on your computer. 11. Launch EnerVista 8 Series Setup software from LaunchPad.
Page 98: Upgrading The Software
The latest EnerVista software and firmware can be downloaded from: Software https://www.gegridsolutions.com/ After upgrading, check the version number under Help > About. If the new version does not display, try uninstalling the software and reinstalling the new versions. 3–20 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 99: Connecting Enervista 8 Series Setup Software To The Relay
USB is selected in the interface drop-down list. Select “USB” and press the Connect button. Ethernet or WiFi can also be used as the interface for Quick Connect as shown next. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 3–21...
Page 100: Configuring Ethernet Communications
FASTPATH: Install and start the latest version of the EnerVista 8 Series Setup software (available from the GE EnerVista CD or Website). See the previous section for the installation procedure. Click on the Device Setup button to open the Device Setup window and click the Add Site button to define a new site.
Page 101: Connecting To The Relay
Enter the IP address, slave address, and Modbus port values assigned to the 869 relay (from the Setpoints > Device > Communications menu). Click the Read Order Code button to connect to the 869 and upload the order code. If a communications error occurs, ensure that the Ethernet communication values correspond to the relay setting values.
Page 102: Working With Setpoints & Setpoints Files
File to Device" and 2) saving Logic Designer changes online. Individual setting changes from the device front panel or Enervista 8 Series Setup software Online Window do not change the DEVICE IN SERVICE state. 3–24 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 103: Engaging A Device
Click = to exit from the keypad and keep the new value. Click on X to exit from the keypad and retain the old value. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 3–25...
Page 104: File Support
In the Setpoints > System Setup > Voltage Sensing dialog box, click on Save to save the values into the 869. Click YES to accept any changes and exit the window. Click Restore to retain previous values. Click Default to restore Default values.
Page 105: Downloading & Saving Setpoints Files
CHAPTER 3: INTERFACES SOFTWARE INTERFACE The 869 displays relay setpoints with the same hierarchy as the front panel display. Downloading & Saving Back up a copy of the in-service settings for each commissioned unit, so as to revert to the...
Page 106: Creating A New Setpoints File
Select the file name and path to store the file, or select any displayed file name to replace an existing file. All 869 setpoint files should have the extension ‘.cid’ (for example, ‘869 1.cid’). Click OK to complete the process. Once this step is completed, the new file, with a complete path, is added to the 869 software environment.
Page 107: Upgrading Setpoints Files To A New Revision
Upgrading Setpoints It is often necessary to upgrade the revision for a previously saved setpoint file after the Files to a New 869 firmware has been upgraded. This is illustrated in the following procedure: Revision Establish communications with the 869 relay.
Page 108: Printing Setpoints
Setpoint lists can be printed in the same manner by right clicking on the desired file (in the file list) or device (in the device list) and selecting the Print Device Information or Print Settings File options. 3–30 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 109: Loading Setpoints From A File
The following procedure illustrates how to load setpoints from a file. Before loading a setpoints file, it must first be added to the 869 environment as described in the section, Adding Setpoints Files to the Environment.
Page 110: Quick Setup
The Quick Setup item is accessed from the EnerVista software from different screens. Online and offline settings changes are made from the corresponding Quick Setup screen. Figure 3-14: 869 Quick Setup (Online) tree position Figure 3-15: 869 Quick Setup (Offline) tree position Quick Setup is designed to allow quick and easy user programming.
Page 111 Attempting to enter and save a setting value which exceeds the range gives a warning dialog box. (note the value is not replaced with the maximum value of the setting). The user must correct the setting value and save to proceed. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 3–33...
Page 112: Upgrading Relay Firmware
Note that uploading firmware to a relay having a Communications card must be done with “Port 4 operation” configured as independent. Before upgrading firmware, it is very important to save the current 869 settings to a file on FASTPATH: your PC. After the firmware has been upgraded, it will be necessary to load this file back into the 869.
Page 113: Loading New Relay Firmware
The firmware filename has the following format. The following screen appears. Select YES to proceed. EnerVista 8 Series Setup software now prepares the 869 to receive the new firmware file. The 869 front panel momentarily displays “Upload Mode”, indicating that it is in upload mode.
Page 114 SOFTWARE INTERFACE CHAPTER 3: INTERFACES The following screen appears, click YES to proceed with the firmware loading process. 3–36 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 115 Wait for the Comms upload process to complete. Wait for the Mains upload process to complete. The EnerVista 8 Series Setup software notifies the user when the 869 has finished loading and notifies the user to Cycle power to the relay to complete firmware update.
Page 116: Advanced Enervista 8 Series Setup Software Features
The SLD pages can also be saved individually as local XML files. The locally stored XML files can then be reloaded to generate another diagram. SLDs represent objects using GE symbols (similar to ANSI). Figure 3-18: Template SLD 3–38 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 117 Additionally, the breaker/switch name is displayed on top of the object. In 869 , a contactor can be used instead of a breaker by selecting it as the switching device from the motor setup settings. While designing the single line diagram through the SLD Configurator, the breaker and contactors will be available depending on the switching device selection in motor setup.
Page 118 0 degrees. Orientation in multiple directions allows the user to configure the single line diagram according to the existing drawings and ensure the correct side for the fixed/moving contacts. 3–40 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 119 Blocked” signal in both On and Off state. Figure 3-22: Reclose Blocked signal In addition, Remote Breaker status objects are added for GE and IEC style. Remote breaker status allows monitoring of three distant breakers. These objects are not controllable and hence cannot be used for selection and operation.
Page 120 On the rugged front panel, the up and down keys can be pressed for navigation and on the membrane front panel, up, down, left, and right keys can be pressed. With the rugged front panel navigation, pressing down sequentially rotates through all the available breakers 3–42 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 121 ), the browsing highlight around the object disappears. If an object is Message Timeout selected, Home button operation will be prohibited. The object must be de-selected by pressing escape in order for the home button to function. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 3–43...
Page 122 For bypassing select-before-operate to start and stop motor, the Start Motor PB and Stop NOTE: Motor PB settings can be utilized under breaker/contactor control. For detailed tagging, blocking and bypassing operations, refer to the section Local Control Mode (breakers and switches). 3–44 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 123: Flexcurve Editor
The user can load Trip Times from a CSV File • The screen above shows the model followed by 869 for viewing FlexCurves. Select Initialize to copy the trip times from the selected curve to the FlexCurve. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 124: Transient Recorder (Waveform Capture)
"CFG." The other file is a "DAT" file, required by the COMTRADE file for proper display of waveforms. • To view a previously saved COMTRADE file, click the Open button and select the corresponding COMTRADE file. 3–46 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 125 • From the window main menu bar, press the Preference button to open the COMTRADE Setup page, in order to change the graph attributes. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 3–47...
Page 126 The Waveform Capture window reappears based on the selected graph attributes. To view a vector graph of the quantities contained in the waveform capture, press the View Phasors button to display the following window: 3–48 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 127 CHAPTER 3: INTERFACES SOFTWARE INTERFACE 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 3–49...
Page 128: Protection Summary
With the software running and communications established, select the Setpoints > Protection Summary menu item to open the Protection Summary window. The Protection Summary screen is as follows: 3–50 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 129 CHAPTER 3: INTERFACES SOFTWARE INTERFACE 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 3–51...
Page 130: Offline Settings File Conversion
EnerVista 8 Series Setup version 1.2x and above supports conversion of SR 469 files above version 5.0 only to 869 settings files. For files below version 5.0x, first convert these files to version 5.0 or higher using the latest EnerVista 469 Setup software before doing the 869 conversion.
Page 131: Convert 369 Files
EnerVista 8 Series Setup version 1.3x and above supports conversion of all 369 files as long as they are from a 32-bit PC. If the file is 16-bit it must be converted to a 32-bit file using the 369 EnerVista Setup before doing the 869 conversion. Conversion Summary At the end of the conversion process, the results are summarized in a conversion report.
Page 132: Results Window
CAUTION: set to default and must be verified by the user before putting the relay into service. Custom curves from 469 cannot be converted to 869 although they appear in the NOTE: conversion report. Although settings show successful conversion, the user must still verify the settings before putting the relay in service.
Page 133: Setpoints Setpoints Main Menu
Setpoints Setpoints Main Menu The 869 has a considerable number of programmable setpoints, all of which make the relay extremely flexible. These setpoints have been grouped into a variety of menus which are available from the paths shown below. Each setpoints menu has sub-sections that describe in detail the setpoints found on that menu.
Page 134: Setpoints Entry Methods
Any of these methods can be used to enter the same information. A computer, however, makes entry much easier. Files can be stored and downloaded for fast, error free entry when a computer is used. To facilitate this process, the GE EnerVista CD with the EnerVista 4–2...
Page 135: Common Setpoints
PICKUP DELAY: The setpoint selects a fixed time interval to delay an input signal from appearing as an output. • DROPOUT DELAY: The setpoint selects a fixed time interval to delay dropping out the output signal after being generated. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–3...
Page 136: Logic Diagrams
869 relay. The targets disappear from the screen when “Self-Reset” is selected, and the conditions are cleared. The targets stay on the screen, when “Latched” is selected, and the conditions are cleared.
Page 137: Setpoints Text Abbreviations
SEC, s: seconds • UV: undervoltage • OV: overvoltage • VT: voltage transformer • Ctrl: control • Hr & hr: hour • O/L: overload • FLA: motor current at full load (Full Load Amperes) 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–5...
Page 138: Device
IEC 60870-5-103 Control IEC 60870-5-103 Points List FlexLogic Testing Programmable LEDs Front Panel Programmable PBs Resetting Tab PBs Installation Annunciator Display Properties Default Screens Level 1 Level 2 Level 3 Level 4 4–6 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 139: Custom Configuration
“Input” is hidden but configured as “Phasor” during Regular mode, therefore Phase TOC 1 still applies “Phasor” as an input. Similarly, “Reset” is read-only, and Phase TOC 1 still applies “Instantaneous” for resetting. The read-only settings are greyed out. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–7...
Page 140 “Administrator” role. In Regular configuration mode, all values in settings/functions can be edited. In Simplified configuration mode, selected settings/functions are hidden or the values are read-only to enhance User eXperience (UX) with minimum setpoint changes. 4–8 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 141: Real-Time Clock
PTP and IRIG-B can be swapped. If both PTP and IRIG-B are available to the 869, by default the 869 clock syncs to PTP over IRIG-B. If PTP is not available the 869 CPU syncs the internal clock to IRIG-B.
Page 142 7. Depending on the characteristics of the device to which the relay is directly linked, VLAN Priority may have no effect. The setting applies to all of the relay’s PTP-capable ports. 4–10 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 143: Clock
Range: January to December (all months) Default: Not Set DST START DAY Range: SUN to SAT (all days of the week) Default: Not Set DST START WEEK Range: 1st, 2nd, 3rd, 4th, Last Default: Not Set 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–11...
Page 144: Sntp Protocol
Range: Standard IP Address Format Default: 0.0.0.0 SNTP 2 UDP PORT NUMBER Range: 0 to 65535 in steps of 1 Default: 123 The SNTP and PTP settings take effect after rebooting the relay. FASTPATH: 4–12 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 145: Security
- Non-alphabetic characters (for example, ~, !, @, #, $,%, &) PASSWORD RECOVERY PROCEDURE In the event of losing all passwords, the 869 can be reset to factory defaults by following the procedure below: The customer sends an email to the customer support department providing a valid serial number and using a recognizable corporate email account.
Page 146: Basic Security
Access timeout is the time of idleness before a logged in user is automatically logged out. This timeout applies to all users, independent of the communication channel (serial, Ethernet or direct access). 4–14 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 147 REQUIRE PW FOR D/T CHANGE The date/time can be set by any role, if this setting is disabled. If this setting is enabled the date/time can only be set by the Administrator. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–15...
Page 148: Cybersentry
IEC 61850) without user authentication or encryption of data taking place, even if the relay has the advanced security feature enabled. SECURITY SETTINGS STRUCTURE The figure below shows the location of the Security settings in the device display hierarchy. 4–16 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 149 If the user enters the wrong password, the “Authentication Failed!” message is displayed. – If the maximum failed authentications occur, the “Account Blocked!” message is displayed. – The Observer user role is the default choice and it does not require a password. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–17...
Page 150 The Access timeout is the time of idleness before a logged in user is automatically logged out. This timeout setting applies to all users, independent of the communication channel (serial, Ethernet or direct access). 4–18 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 151 The two menu items: Change Administrator Password, and Change Operator Password are available only to Administrator, which is the only role that has permissions to change passwords for itself and the other local roles. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–19...
Page 152 For this reason, if these settings have been modified, offline, they will not be written during the file write operation. 4–20 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 153 The following are settings that need to be configured through EnerVista, in order to set up communication with a Radius server on 869. For configuring the RADIUS server itself, consult the RADIUS documentation. An example is provided, see Communications Guide.
Page 154 AUTHENTICATION FAIL Operand set for Failed Authentication self test and alarm UNAUTH SETTING CHANGE ATTEMPT Operand set for unauthorized setting change action RADIUS SRV UNAVAILABLE Operand set for RADIUS servers unavailable self test 4–22 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 155: Communications
When a ModBus master such as the EnerVista 8 Series Setup software communicates to the 869 over Ethernet, the 869 slave address, TCP port number and the 869 IP address for the associated port must be configured and are also configured within the Master for this device.
Page 156 Range: 1 to 254 in steps of 1 Default: 254 For the RS485 ports each 869 must have a unique address from 1 to 254. Address 0 is the broadcast address to which all Modbus slave devices listen. Addresses do not have to be sequential, but no two devices can have the same address, otherwise conflicts resulting in errors occur.
Page 157 22 bytes. The logging in must be done using a single Modbus command using Function 10H (Store Multiple Setpoints). The following table shows data to be written to the relay to login as Administrator. The relay password in this example is 0. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–25...
Page 158 Modbus Function 10H (Store Multiple Setpoints). The 4 bytes are the function and the command values. The function value is always 05. Table 4-10: Modbus Commands registers Description Memory Map Address Command Register 40129 0x0080 Command Function Register 40130 0x0081 4–26 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 159 Value Description Reset Clear All Records Clear Events Clear Energy Use Data 4096 Force Virtual Input 1 Table 4-17: Function Format for Reset command Slave # Function Operation Code Code Value 0001 FF00 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–27...
Page 160: Rs485
Setpoints > Device > Communications > WiFi WiFi Enable This setting switches WiFi functionality on/off. By default WiFi is enabled in the basic offering, but it is disabled in software options that offer CyberSentry. 4–28 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 161 Keypad as well. WiFi Status A WiFi symbol is displayed in the caption area of the 8-Series product front panel. The following table lists all possibilities for this icon: 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–29...
Page 162 Start EnerVista on a PC and use the Discover function, all relays within range appear and are populated in EnerVista for initial configuration and commissioning. Once the relay is configured, change the 8-Series relay default WiFi SSID and Passphrase settings before the relay goes into service. 4–30 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 163: Ethernet Ports
Ethernet port located on the base CPU is disabled) Protocols: Modbus TCP, DNP 3.0, IEC 60870-5-104, IEC 61850 GOOSE, IEEE 1588, SNTP, IEC 62439-3 clause 4 (PRP) Wavelength: 1310 nm Typical link distance: 4 km 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–31...
Page 164 CHAPTER 4: SETPOINTS Network Settings Menu The following are the network settings menu of the 869 to accommodate the features of the 869 product. If the communications card is installed network port 1 is no longer available. When using more than one Ethernet port, configure each to belong to a different network or subnet using the IP addresses and mask, else communication becomes unpredictable when more than one port is configured to the same subnet.
Page 165: Routing
LAN’s. In this mode of operation both ports cannot be connected to the same LAN. The receiving devices (869 ) process the first frame received and discard the duplicate through a link redundancy entity (LRE) or similar service that operates below layer 2.
Page 166 255.255.255.0 The route destination must not be a connected network. The route gateway must be on a connected network. This rule applies to the gateway address of the default route as well. 4–34 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 167 This gateway is the address of Router 2, which is “aware” of destination 10.1.3.0 and is able to route packets coming from the 8 Series device and destined to EnerVista. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–35...
Page 168: Dnp Protocol
Range: 0 to 65519 in steps of 1 Default: 65519 The DNP address sets the DNP slave address. This number identifies the 869 on a DNP communications link. Each DNP slave must be assigned a unique address. DNP Client Address 1 (2) Range: standard IP address Default: 0.0.0.0...
Page 169: Dnp / Iec104 Point Lists
This setting specifies a time delay for the detection of dead network TCP connections. If there is no data traffic on a DNP TCP connection for greater than the time specified by this setting, the connection will be aborted by the 869. This frees up the connection to be re-used by a client.
Page 170 FACTOR setting is set to “/ 1000”, and the Phase A voltage is 72000 V, the Phase A voltage is sent on to the 869 as 72. The settings are useful when analog input values must be adjusted to fit within certain ranges in DNP masters.
Page 171 When a freeze function is performed on a Binary Counter point, the frozen value is available in the corresponding Frozen Counter point. 869 Digital Counter values are represented as 16 or 32-bit integers. The DNP 3.0 protocol defines counters to be unsigned integers.
Page 172: Iec 60870-5-104
The IEC 60870-5-104 communications protocol is supported on Ethernet ports 4 and 5 only. Setting changes become active after rebooting. In 869 both DNP and IEC104 protocol can work at the same time, but the user has to FASTPATH: consider that there is only one point map. So, the two protocols use the same data mapping, i.e., same point index and same point source.
Page 173: Iec 60870-5-103
“Network - TCP”, the IEC104 protocol can be used over TCP/IP on channels 1 or 2. The IEC104 NETWORK CLIENT ADDRESS settings can force the 869 to respond to a maximum of two specific IEC104 masters which own the configured IP Addresses. The settings in this sub-menu are shown below.
Page 174: Iec 61850
Setup software. A rebooting MUST be done before any changes made take affect. The IEC 61850 Configurator The 869 supports the IEC 61850 protocol which is identified by order code option “2E”. The IEC 61850 configurator is found in both the online and offline section of the EnerVista 8 Series Setup software for configuring the online 869 and offline 869 settings file respectively.
Page 175 Read Device Settings: The menu option reads all the settings from the relay by TFTP and creates an 869 file with extension *.CID. The created *.CID file consists of two sections. A private section where all non IEC 61850 settings are available, and a public section in which IEC 61850 related settings are implemented.
Page 176 IEC 61850 Configurator is open. The user must close the IEC61850 session to perform other operations in the EnerVista software. The IEC 61850 configurator consists of five sections: • ICD/CID • Settings • Reports • GOOSE Reception • GOOSE Transmission 4–44 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 177: Remote Modbus Device
Range: 0 to 10000 in steps of 1 Default: 502 POLL RATE Range: OFF, 3 to 120 minutes in steps of 1 Default: 3 minutes TRIGGER Range: Any FlexLogic operand fault: Off 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–45...
Page 178: Transient Recorder
In “Protected” mode, the relay will keep the number of records corresponding to the selected number of records, without saving further records that are beyond the selected number of records. 4–46 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 179 Alarm LED changes to “high”. DIGITAL INPUT 1 to 64 Range: Off, Any FlexLogic operand Default: Off ANALOG INPUT 1 to 16 Range: Off, Any FlexLogic analog parameter Default: Off 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–47...
Page 180: Data Logger
Data Logger Function is set to “Triggered”. TRIGGER POSITION Range: 0 to 50% steps of 1% Default: 20% This setpoint defines the percentage of buffer space that is used for recording pre- trigger samples. 4–48 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 181 “Rate”. The mean (average) is calculated simply using the well known ratio between the sum of all the values and their number over the time interval. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–49...
Page 182: Fault Reports
Figure 4-10: Data Logger Storage Capacity Fault Reports The 869 relay supports up to 15 fault reports. The trigger conditions and the analog quantities to be stored are entered in this menu. When enabled, this function monitors the pre-fault trigger. The pre-fault data are stored in the memory for prospective creation of the fault report on the rising edge of the pre-fault trigger.
Page 183 These settings specify an actual value such as voltage or current magnitude, true RMS, phase angle, frequency, temperature, etc., to be stored should the report be created. Up to 32 analog channels can be configured. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–51...
Page 184: Event Data
The indicator is a self-reset indicator, unless it is initiated from a protection, control, or monitoring element whose function is selected as “Latched Alarm”. Resetting the Latched Alarm LED is performed by initiating a Reset command. 4–52 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 185: Programmable Pushbuttons
Each pushbutton asserts its own ON and OFF FlexLogic operands (for example, PUSHBUTTON 1 ON and PUSHBUTTON 1 OFF). These operands are available for each pushbutton and are used to program specific actions. Each pushbutton has an associated 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–53...
Page 186 If set to Latched the control logic alternates the state of the corresponding FlexLogic operand between ON and OFF on each button press or by virtually activating the pushbutton (assigning Set and Reset operands). When in Latched mode, the states of 4–54 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 187 AUTORESET Range: Disabled, Enabled Default: Disabled This setting enables the user-programmable pushbutton Autoreset feature. The setting is applicable only if the pushbutton is in “Latched” mode. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–55...
Page 188 LED Trigger PB1 ON PB2 ON PB3 ON Hold Pressed 0.1s 0.1s 0.1s Autoreset Disabled Disabled Disabled Autoreset Delay 1.0s 1.0s 1.0s Lock Dropout Time 0.0s 0.0s 0.0s Events Enabled Enabled Enabled 4–56 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 189 CHAPTER 4: SETPOINTS DEVICE Figure 4-12: Pushbuttons Logic Diagram 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–57...
Page 190: Tab Pushbuttons
This setting specifies the 13-character line of the user-programmable message and is intended to provide the ID information of the pushbutton. This text is used to describe the pushbutton in the FlexLogic operands. 4–58 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 191 This setting specifies the time required for a pushbutton to be pressed before it is deemed active. The timer is Reset upon release of the pushbutton. Note that any pushbutton operation will require the pushbutton to be pressed a minimum of 100ms. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–59...
Page 192 “active” status after the pushbutton has been released. The length of time the operand remains on has no effect on the pulse duration. The setting is required to set the duration of the pushbutton operating pulse. EVENTS Range: Disabled, Enabled Default: Enabled 4–60 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 193: Annunciator
While in the annunciator panel, if no action is taken, the screen returns back to the home page after the timeout setting. Path: Setpoints > Device > Front Panel > Annunciator > Indicator 1 (36) 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–61...
Page 194 Enter key again acknowledges the alarm and pressing the Escape button discards the message. When the alarms are active under latched mode, a power loss retains the previous state of the alarm as the alarm states are stored in non-volatile memory. 4–62 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 195: Display Properties
The target message interrupts the message timeout, overriding it. The message timeout starts timing after each target message, and if no more activity is recorded for the specified time, the display goes back to the default screen. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–63...
Page 196: Default Screens
Range: varieties of screens for selection Default: SLD (for Default Screen 1 only), Off (for Default Screen 2/3 only) The setpoint enables the user to input up to 3 default screens from a list of screens. 4–64 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 197: Home Screens
Default: Tab PB Summary HOME SCREEN 3 Range: All available pages Default: Annunciator Pg 1 HOME SCREEN 4 Range: All available pages Default: Values HOME SCREEN 5 to 10 Range: All available pages Default: Off 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–65...
Page 198: Resetting
When the relay is commissioned and the Validate CANBUS IO command is set to Yes the current auto detect value is saved to non-volatile memory. This value is then used to configure all display dependencies and used in self-test validation. 4–66 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 199 Lower the Voltage Cutoff and Current Cutoff levels with care as the relay accepts lower FASTPATH: signals as valid measurements. Unless dictated otherwise by a specific application, the default settings of “0.020 pu” for current and “1.0 V” for voltage are recommended.” 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–67...
Page 200: System
CT ratings. The secondary CT ratings are selected in the 869 Order code. The CT inputs are grouped in banks of four currents on the 869 – three inputs for phase currents A, B, and C, and one input for ground current. The basic AC card has two AC banks, one bank currents and one bank voltages.
Page 201: Voltage Sensing
The Voltage Sensing menu provides the setup for all VTs (PTs) connected to the relay voltage terminals. The 869 can be connected to 4 VTs, i. e. three-phase VTs from either a Wye (Star) or a Delta connection, and one auxiliary VT. The VT inputs setup for the 869 is shown below: Path: Setpoints >...
Page 202: Power System
If present, the three-phase voltages are used for frequency tracking. Phase A voltage is used as a phase reference. • Frequency tracking is switched automatically by an algorithm, to the three-phase currents (or auxiliary voltage signal for the tie-breaker configuration), if the frequency 4–70 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 203: Motor
This setting defines the current level at which the motor is considered to be overloaded. If the motor current exceeds the Motor Overload Factor threshold, the 869 Thermal Model reacts by accumulating thermal capacity. Normally, this factor is set slightly above the motor service factor to account for inherent load measuring errors (CTs and limited relay accuracy).
Page 204 With the reciprocating load application, the number of cycles to average can be determined from current waveform capture using the Oscillography/Datalogger features in 869. The second way to determine this setpoint is by using the following relation: N = P / 2, where N is the number of cycles to average and P is the number of poles on the motor.
Page 205 CHAPTER 4: SETPOINTS SYSTEM Figure 4-16: Motor Load Averaging Filter for VFD and Cyclic Load Motor Applications 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–73...
Page 206 The 869 algorithm integrates the heating at each speed into one thermal model using a common thermal capacity used register value for both speeds. Using the 869 for such applications provides several options, allowing the removal of traditional wiring and interlocking.
Page 207 Default: 3600 RPM This setting specifies the motor rated speed for speed 2. In addition, this setting is also used by the Speed element as the rated value. Figure 4-17: Two-Speed Motor Protection 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–75...
Page 208: Variable Frequency Drives
The VFD Function must be set to “Enabled” in order to ensure proper performance of the 869 relay for motor applications with VFD. In the motor application when VFD can be bypassed via the Bypass Switch as shown in Figure 1(B), status of the bypass switch must be configured as a selected input under setpoint “Bypass Switch”.
Page 209 Set the Motor Load Filter Interval equal to the value estimated in Step 2 plus a recommended margin of 1 cycle. Capture the “Fltd Motor Load” analog value from the Datalogger/Oscillography. “Fltd Motor Load” is the motor load current after filtration of “oscillations” due to VFD. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–77...
Page 210 FUNCTION Range: Disabled, Enabled Default: Disabled This setting enables the VFD configuration support in 869. BYPASS SWITCH Range: FlexLogic operand Default Off This setting defines the digital input to determine if motor is powered by the VFD or directly from the AC source through bypass switch.
Page 211 Busbar Busbar Switching Device Status Switching Device Status Bypass Switch Status Contact Inputs Contact Inputs Motor Motor (A) Motor powered through the VFD (B) Motor powered through the VFD with Bypass Switch 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–79...
Page 212 SYSTEM CHAPTER 4: SETPOINTS Figure 4-19: VFD Logic 4–80 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 213: Preset Values
SYSTEM Preset Values In 869, user can preset the following actual value accumulators. When accumulator is preset with a new value, the 869 overwrites previous actual value and continues accumulation starting from the new value. The accumulated value is displayed in Status or Metering.
Page 214: Switching Device
CHAPTER 4: SETPOINTS Switching Device The 869 supports two types of motor switching devices: breakers and contactors. A breaker operation is controlled by two coils labeled “Trip” and “Close”. Each of them has to be separately energized with a short pulse in order to change the state of the breaker. A contactor operation is controlled by a single coil.
Page 215 PB LED: BREAKER OPENED FLEXLOGIC OPERANDS FlexLogic operand (BKR 52a state) BKR 1 Opened FlexLogic operand (BKR 52b status) LED: ALARM 30 ms FLEXLOGIC OPERANDS LATCH BKR 1 Unkwn State 892740A2.cdr RESET (command) 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–83...
Page 216: Contactor
If “Relay 2” is selected, Auxiliary Relay 2 is not available for selection in any element in the FASTPATH: 869. If “Off” is selected, Auxiliary Relay 2 is available for selection in all elements with auxiliary relay selection in the 869 and it is not activated by the START command.
Page 217 FlexLogic Operand =1, Off = 0 FLEXLOGIC OPERANDS Contactor Opened FlexLogic Operand (52a state) FlexLogic Operand (52b status) LED: ALARM 30 ms 0 ms FLEXLOGIC OPERANDS LATCH Contactor Unkwn Stat 894206A1.cdr RESET (command) 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–85...
Page 218: Flexcurves
The following table details the 120 points as well as the characteristic for each of them, and a blank cell where the user can write the time value when the operation (for I > I pickup or the reset (for I < I ) is required. pickup 4–86 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 219 FlexCurves are customized by editing the operating time (ms) values at pre-defined per- unit current multiples. Note that the pickup multiples start at zero (implying the "reset time"), operating time below Pickup, and operating time above Pickup. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–87...
Page 220: Inputs
Figure 4-24: Inputs Display Hierarchy Contact Inputs The 869 relay is equipped with a number of Contact Inputs, depending on the Order Code, which can be used to provide a variety of functions such as for circuit breaker control, external trips, blocking of protection elements, etc. Contact inputs accept wet and dry input signals.
Page 221 LOW-HIGH (marks no.1 and 2 in the figure below) and HIGH-LOW (marks no. 3 and 4 below) transitions. Figure 4-25: Contact Input Debouncing Mechanism and Time-stamping Sample Timing 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–89...
Page 222 The value is selected according to the following criteria: 17 for 24 V sources, 33 for 48 V sources, 84 for 110 to 125 V sources and 166 for 250 V sources. For internal wetting set the Voltage Threshold to 17V. FASTPATH: 4–90 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 223: Virtual Inputs
The 52b contact is closed when the breaker is open and open when the breaker is closed. FASTPATH: Virtual Inputs The 869 relay is equipped with 64 Virtual Inputs that can be individually programmed to respond to input signals from the keypad or from communications protocols. This has the following advantages over Contact Inputs only: •...
Page 224 FUNCTION : Disabled=0 Enabled =1 Virtual Input 1 to ON =1 LATCH FlexLogic Operands Reset- Virtual Input 1 to OFF =0 VI 1 ON Dominant SETPOINTS VIRTUAL INPUT 1 TYPE: Latched 892705A1.cdr Self-Reset 4–92 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 225: Analog Inputs
4 to 20 mA for temperatures 0 to 250°C is connected to the analog input, then enter “0” for the MINIMUM VALUE. The relay then interprets 4 mA as representing 0°C. Intermediate values between the minimum and maximum are scaled linearly. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–93...
Page 226 TRIP OUTPUT RELAY X For details see Common Setpoints. ALARM FUNCTION Range: Disabled, Alarm, Latched Alarm Default: Disabled The selection of Alarm or Latched Alarm setting enables the alarm function. 4–94 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 227 This setting enables or disables the events of the Analog Input function. TARGETS Range: Disabled, Self-Reset, Latched Default: Latched The selection of the Self-Reset or Latched setting enables the targets of the Analog Input function. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–95...
Page 228 INPUTS CHAPTER 4: SETPOINTS Figure 4-27: Analog Input Threshold Logic Diagram 4–96 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 229: Remote Inputs
The REMOTE INPUT 1 Name setting allows the user to assign descriptive text to the remote input. The REMOTE INPUT 1 Events setting helps in enabling whether an event has to be generated whenever Remote input status is updated. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–97...
Page 230: Outputs
Figure 4-28: Outputs Display Hierarchy Output Relays The 869 relay is equipped with a number of electromechanical output relays specified at the time of ordering. Each of the available modules for slot F provides 5 contact outputs the first two of which are designated as Trip and Close (Relay 1 “Trip”, Relay 2 “Close”). The “Trip”...
Page 231 The 8 Series relay is equipped with one output relay (# 8 - “Critical Failure Relay”) for failsafe indication. The Critical Failure Relay is a Form-C contact with one NO and one NC contact (no control power). There are no user-programmable setpoints associated with this output relay. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–99...
Page 232: Output Relay 1 (F1) Trip
(if not already activated by an operand driving this output relay) when control power is removed from the 869. Conversely a non-failsafe relay is de-energized in its normal non-activated state and will not change state when control power is removed from the 869 (if not already activated by a protection element).
Page 233 CHAPTER 4: SETPOINTS OUTPUTS Figure 4-29: Relay 1 “TRIP” logic diagram 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–101...
Page 234: Output Relay 2 (F4) Programmed As Close
If Aux Relay 2 is selected for Breaker Close or Contactor Close, the relay name from the NOTE: For Output Relays menu changes to “Close”. If Aux Relay 2 is not selected, the name reverts to “Aux Relay 2”. 4–102 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 235 CHAPTER 4: SETPOINTS OUTPUTS Figure 4-30: “Close” logic diagram 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–103...
Page 236: Auxiliary Output Relays
FlexLogic operand (trigger) under the setpoint “Aux Rly # Operate”. Changing the state of any of the Auxiliary Relays will be inhibited if the 869 relay is in “Not Ready” mode. NAME...
Page 237 OUTPUTS failsafe relay is de-energized in its normal non-activated state and will not change state when control power is removed from the 869 (if not already activated by a protection element). The choice of failsafe or non-failsafe operation is usually determined by the motor’s application.
Page 238: Output Relay 3 (F7) Start Inhibit
CHAPTER 4: SETPOINTS Output Relay 3 (F7) Auxiliary Relay 3 is reserved on 869 for the Start Inhibit function. The default setting to Start Inhibit trigger the relay, (setpoint Operation) is set to the Start Inhibit FlexLogic operand. To avoid erroneously using the output for any other purpose, Aux.
Page 239: Analog Outputs
Each channel can be programmed to represent a FlexAnalog parameter available in the respective 8 Series relay. The range and steps is the same as the range of the FlexAnalog. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–107...
Page 240: Protection
PROTECTION CHAPTER 4: SETPOINTS Protection The 869 protection elements are organized in six (6) identical setpoint groups: Setpoint Group 1 to Setpoint Group 6. Figure 4-33: Protection Display Hierarchy Device Motor System 2-Speed Motor Inputs Current Group 1 Outputs Voltage...
Page 241 Volts per Hertz (24) Impedance Elements • Out-of-step (78) Power Elements • Directional Power (32) • Reactive Power (40Q) Frequency Elements • Underfrequency (81U) • Overfrequency (81O) • Frequency Rate of Change (81R) 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–109...
Page 242: Motor Elements
CTs have the same ratios but it is allowed for the ratios to be different. The maximum allowable ratio mismatch is 10:1. In the case of a mismatch, the 869 scales the currents to the primary of the CT with the higher primary value which is used as the CT reference for the percent differential element.
Page 243 The dual slope characteristic is shown in the following figure. Figure 4-35: Percent Differential Characteristic The horizontal axes value of the percent differential characteristic is the Restraining current (I ) and the vertical axes value is the Differential current (I 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–111...
Page 244 The setting is applicable to both the internal summation method and core balance method. In addition, this setting defines the minimum differential current required for operation. The setting is based on the amount of differential current that can be seen 4–112 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 245 PICKUP DELAY Range: 0.000 to 10.000 in steps of 0.001 Default: 0.000 This setting defines the pickup time delay of the percent differential element. BLOCK Range: Off, Any FlexLogic operand Default: Off 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–113...
Page 246 In order to provide additional security against improper operations during these events, the 869 incorporates saturation detection logic. When saturation is detected the element makes an additional check on the angle between the terminal side CT and differential CT currents.
Page 247 That the above CT saturation (SAT) and phase direction (DIR) checking are applicable to NOTE: internal summation method only. If the Core balance method is selected, neither SAT nor DIR check is performed, the fixed values SAT=0 and DIR = 1 are used. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–115...
Page 248 PROTECTION CHAPTER 4: SETPOINTS Figure 4-37: Percent Differential logic diagram 4–116 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 249: Thermal Model (49)
CHAPTER 4: SETPOINTS PROTECTION Thermal Model (49) The Thermal model is the primary protective function of the 869. It consists of five key elements: • Thermal model curve (overload) • Overload pickup level • Unbalance biasing of the motor current while the motor is running •...
Page 250 6.00 2.50 5.00 7.49 9.99 12.49 14.99 17.49 19.99 22.48 24.98 27.48 29.98 32.48 34.97 37.47 6.50 2.12 4.24 6.36 8.48 10.60 12.72 14.84 16.96 19.08 21.20 23.32 25.44 27.56 29.67 31.79 4–118 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 251 22.20 23.59 24.98 26.37 27.76 29.14 30.53 31.92 33.31 34.69 15.00 22.20 23.59 24.98 26.37 27.76 29.14 30.53 31.92 33.31 34.69 20.00 22.20 23.59 24.98 26.37 27.76 29.14 30.53 31.92 33.31 34.69 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–119...
Page 252 (FLA) are expressed in Amps. In case of uncertainty, the more conservative “Cutoff” value should be used. The following figure illustrates the impact of this setting on the time to trip thermal curves. Figure 4-38: Impact of Thermal Model Curve Effect Setting 4–120 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 253 IEC 255-8 standard for additional details on its application. If “IEC” is selected as the Overload Curve, the 869 can apply the IEC 255-8 hot and cold curve characteristics to the thermal model. In 869, appropriate selection of Hot/Cold curve characteristic is based on the motor status and Thermal Capacity (TC) Used as per the following table.
Page 254 “1.00” and “25.00” as indicated in the Standard Motor Curves diagram below. Figure 4-39: Standard Motor Curves During the interval of discontinuity, the longer of the two trip times is used to reduce the NOTE: chance of nuisance tripping during motor starts. 4–122 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 255 EnerVista program. User-defined curves can be used for Thermal Model protection in the same way as standard Motor Curves and IEC curves. Each of the four FlexCurves has 120-point settings for entering 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–123...
Page 256 1, 2, 3, 4, and 5% equals current unbalances of 6, 12, 18, 24, and 30% respectively. Based on this assumption, the amount of motor derating for different values of K entered for setting Unbalance Bias K Factor is also shown in the following figure. 4–124 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 257 = Equivalent motor heating current (also defined as Thermal Model Biased Motor Load Current). • OL = Overload factor specified by the Motor Overload Factor setting. • FLA = Motor rated current specified by the Motor Full Load Amps setting. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–125...
Page 258 For the motor stopped case, motor cooling is also calculated using the same equation above, however; the value of the cool time constant (τ) is now Cool Time Constant Stopped and TCU is now 0. Figure 4-42: Thermal Model Cooling 4–126 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 259 The RTD bias feature alone cannot generate a trip. Even if the RTD bias feature forces the RTD bias thermal capacity used to 100%, the load current must be above the overload pickup (OL x FLA) setting to set the output. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–127...
Page 260 = RTD Bias minimum setting • Temp = RTD Bias center setting center • Temp = RTD Bias maximum setting • TCU at RTD_Bias_Center = thermal capacity used defined by the Hot/Cold Safe Stall Ratio setting 4–128 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 261 RTD. If voting fails, RTD Bias feature will block automatically. At least two RTDs have to be configured as Stator type (under Setpoints/Monitoring/RTD NOTE: Temperature) for this feature to become active. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–129...
Page 262 These thermal limits are typically available from the machine specifications provided by motor manufacturer. 4–130 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 263 The setting is used to address situations when the voltage input into thermal model has been lost. In this case, the voltage dependent algorithm readjusts the voltage dependent curve to avoid an inadequate thermal protection response. The VT fuse failure function is 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–131...
Page 264 ). The value can be typically determined from the motor acceleration curves. The current value at the breakdown torque for the 100% voltage start is recommended for this setting. The voltage dependent overload curves are shown in the following figure. 4–132 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 265 ALARM OUTPUT RELAY X For details see Common Setpoints. TRIP OUTPUT RELAY X For details see Common Setpoints. EVENTS Range: Enabled, Disabled Default: Enabled TARGETS Range: Self-reset, Latched, Disabled Default: Latched 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–133...
Page 266 As such, the higher terminal voltages tend to reduce I t. The rate of I t reduction is dictated by 4–134 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 267 100%, and maximum line voltages. For voltages between these limits, the 869 shifts the acceleration curve linearly and constantly, based on the measured line voltage during a motor start. Figures (d), (e) and (f) illustrate the motor starting curves for the following abnormal conditions: line voltages below the minimum, above 110%, and the situation for voltage loss.
Page 268 PROTECTION CHAPTER 4: SETPOINTS Figure 4-46: Voltage Dependent Overload Curve Selection logic diagram 4–136 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 269 CHAPTER 4: SETPOINTS PROTECTION Figure 4-47: Thermal Model logic diagram 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–137...
Page 270: Current Unbalance (46)
However, the current unbalance protection can detect this condition and alarm and /or trip before the motor has heated substantially. For the 869 relay, unbalance is defined as the ratio of negative-sequence to positive-sequence current, Eq. 26...
Page 271 Current Unbalance element. Unbalance minimum time must be set in order to prevent false operation of the element. This setting is only applicable when Trip Curve is programmed as Inverse Time. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–139...
Page 272 2 × 6 = 12%. In this case, set the current unbalance alarm pickup to “15%” and the current unbalance trip pickup to “20%” to prevent nuisance tripping; 5 or 10 seconds is a reasonable delay. 4–140 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 273 Common Setpoints. BLOCK Range: FlexLogic Operand Default: Off The Current Unbalance can be blocked by any asserted FlexLogic operand. EVENTS Range: Enabled, Disabled Default: Enabled TARGETS Range: Self-reset, Latched, Disabled Default: Latched 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–141...
Page 274 PROTECTION CHAPTER 4: SETPOINTS Figure 4-49: Current Unbalance logic diagram 4–142 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 275: Mechanical Jam (50Lr)
When the 2-Speed Motor Protection functionality is employed, the 869 will block Mechanical Jam Protection during the acceleration time from Speed 1 to Speed 2 until the motor current has dropped below overload pickup level (OL x FLA) or the ACCEL TIME Fr.
Page 276 Default: Off The mechanical jam can be blocked by any asserted FlexLogic operand. OUTPUT RELAY X For details see Common Setpoints. EVENTS Range: Enabled, Disabled Default: Enabled TARGETS Range: Self-reset, Disabled Default: Latched 4–144 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 277 CHAPTER 4: SETPOINTS PROTECTION Figure 4-50: Mechanical Jam logic diagram 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–145...
Page 278: Undercurrent (37)
A second independent Undercurrent protection element is provided for Speed 2. If 2 speed functionality is enabled, the 869 relay relies on the motor speed indication; so the main Undercurrent protection element is only active when the motor is running at speed 1 (low speed), and the Speed2 Undercurrent protection element is only active when the motor is running at high speed (speed 2).
Page 279 Setpoints. BLOCK Range: Off, Any FlexLogic operand Default: Off The Undercurrent can be blocked by any asserted FlexLogic operand. EVENTS Range: Disabled, Enabled Default: Enabled TARGETS Range: Disabled, Self-reset, Latched Default: Latched 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–147...
Page 280 PROTECTION CHAPTER 4: SETPOINTS Figure 4-51: Undercurrent logic diagram 4–148 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 281: Loss Of Excitation (40)
An offset is one half of the direct axis transient reactance (X'd) - both impedances referring to the relay 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–149...
Page 282 This setting is the offset of the Circle 1 characteristic in ohms, referring to the CT/VT secondary (relay). CIRCLE 1 PICKUP DELAY Range: 0.00 to 600.00 s in steps of 0.01 s Default: 0.30 s 4–150 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 283 Range: 0.00 to 1.50 x VT in steps of 0.01 x VT Default: 0.70 x VT This setting specifies the pickup value for under-voltage supervision for one or both circles (if enabled). BLOCK Range: Off, Any FlexLogic operand Default: Off 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–151...
Page 284 PROTECTION CHAPTER 4: SETPOINTS EVENTS Range: Enabled, Disabled Default: Enabled TARGETS Range: Self-reset, Latched, DIsabled Default: Latched 4–152 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 285 CHAPTER 4: SETPOINTS PROTECTION Figure 4-53: Loss of Excitation Logic Diagrams: (a) circle 1 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–153...
Page 286 PROTECTION CHAPTER 4: SETPOINTS Figure 4-54: Loss of Excitation Logic Diagrams: (b) circle 2 4–154 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 287: Overload Alarm
Default: 1.00 s BLOCK Range: Off, Any FlexLogic operand Default: Off OUTPUT RELAY X For details see Common Setpoints. EVENTS Range: Disabled, Enabled Default: Enabled TARGETS Range: Disabled, Self-reset, Latched Default: Latched 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–155...
Page 288 PROTECTION CHAPTER 4: SETPOINTS Figure 4-55: Overload Alarm logic diagram 4–156 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 289: Short Circuit
PICKUP DELAY Range: 0.00 to 180.00 s in steps of 0.01 Default: 0.00 s The setting specifies the pickup delay for the Short Circuit element. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–157...
Page 290 The Short Circuit can be blocked by any asserted FlexLogic operand. OUTPUT RELAY X For details see Common Setpoints. EVENTS Range: Enabled, Disabled Default: Enabled TARGETS Range: Self-reset, Latched, Disabled Default: Latched 4–158 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 291 CHAPTER 4: SETPOINTS PROTECTION Figure 4-56: Short Circuit logic diagram 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–159...
Page 292: Ground Fault (50Sg)
Range: 0.00 to 180.00 s in steps of 0.01 s Default: 1.00 s This setting specifies the amount of time motor ground current must exceed pickup to generate a trip when the motor is in a starting condition. 4–160 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 293 ALARM OUTPUT RELAY X For details see Common Setpoints. BLOCK Range: FlexLogic Operand Default: Off The Ground Fault can be blocked by any asserted FlexLogic operand. EVENTS Range: Enabled, Disabled Default: Enabled 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–161...
Page 294 PROTECTION CHAPTER 4: SETPOINTS TARGETS Range: Self-reset, Disabled Default: Latched 4–162 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 295 CHAPTER 4: SETPOINTS PROTECTION Figure 4-57: Ground Fault logic diagram 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–163...
Page 296: Acceleration Time
The setting is used to adapt the tripping action when the current is changing significantly during the start, such as due to voltage dips. 4–164 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 297 Common Setpoints. BLOCK Range: FlexLogic Operand Defatul: Off The Acceleration Time element can be blocked by any asserted FlexLogic operand. EVENTS Range: Enabled, Disabled Default: Enabled TARGETS Range: Self-reset, Disabled Default: Latched 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–165...
Page 298 PROTECTION CHAPTER 4: SETPOINTS Figure 4-59: Acceleration Time logic diagram 4–166 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 299: Underpower (37P)
TRIP OUTPUT RELAY X For details see Common Setpoints. ALARM FUNCTION Range: Disabled, Alarm, Latched Alarm Default: Disabled The setting enables the Underpower Alarm functionality. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–167...
Page 300 For details see Common Setpoints. BLOCK Range: FlexLogic Operand Default: Off The Underpower can be blocked by any asserted FlexLogic operand. EVENTS Range: Enabled, Disabled Default: Enabled TARGETS Range: Self-reset, Disabled Default: Latched 4–168 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 301 CHAPTER 4: SETPOINTS PROTECTION Figure 4-60: Underpower logic diagram 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–169...
Page 302: Speed Motor
Contact closure signifies that the motor is in > Setup Speed 2; if the input is open, it signifies that the motor is in Speed 1. This allows the 869 to determine which settings must be active at any given point in time.
Page 303: Speed Acceleration
CURRENT Range: 1.00 to 10.00 x FLA in steps of 0.01 Default: 6.00 x FLA MODE Range: Definite Time, Adaptive Default: Definite Time 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–171...
Page 304 Range: 0.50 to 180.00 s in steps of 0.01 Default: 10.00 s This setting is provided to select maximum accelerating time from speed 1 to speed 2 when motor is switched from low-to-high speed. BLOCK Range: FlexLogic Operand Default: Off 4–172 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 305 CHAPTER 4: SETPOINTS PROTECTION Figure 4-62: Speed2 Acceleration Time logic diagram 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–173...
Page 306: Speed Undercurrent
Range: 0.00 to 180.00 s in steps of 0.01 s Default: 1.00 s ALARM DROPOUT DELAY Range: 0.00 to 180.00 s in steps of 0.01 s Default: 1.00 s BLOCK Range: Off, Any FlexLogic operand Default: Off 4–174 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 307 CHAPTER 4: SETPOINTS PROTECTION Figure 4-63: Undercurrent logic diagram 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–175...
Page 308: Current Elements
When this variable indicates that the energy capacity has reached 100%, a Time Overcurrent element will operate. If less than 100% energy capacity is accumulated in this variable and the current falls below the dropout threshold of 97 to 98% of the Pickup value, 4–176 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 309 17.654 10.790 7.849 6.308 5.397 4.814 4.417 4.134 129.432 56.221 23.538 14.387 10.465 8.410 7.196 6.418 5.889 5.513 10.0 161.790 70.277 29.423 17.983 13.081 10.513 8.995 8.023 7.361 6.891 IEEE MODERATELY INVERSE 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–177...
Page 310 ANSI VERY INVERSE 1.567 0.663 0.268 0.171 0.130 0.108 0.094 0.085 0.078 0.073 3.134 1.325 0.537 0.341 0.260 0.216 0.189 0.170 0.156 0.146 6.268 2.650 1.074 0.682 0.520 0.432 0.378 0.340 0.312 0.291 4–178 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 311 Table 4-29: IEC (BS) INVERSE TIME CURVE CONSTANTS IEC (BS) CURVE SHAPE IEC Curve A (BS142) 0.140 0.020 IEC Curve B (BS142) 13.500 1.000 43.2 IEC Curve C (BS142) 80.000 2.000 58.2 IEC Short Inverse 0.050 0.040 0.500 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–179...
Page 312 The curves for the General Electric type IAC relay family are derived from the formula: Where: T = operate time (in seconds) TDM = Multiplier setting I = input current = Pickup Current setting pickup 4–180 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 313 A to E = constants = characteristic constant = reset time in seconds (assuming energy capacity is 100% and RESET is RESET “Timed”) Table 4-31: GE TYPE IAC INVERSE TIME CURVE CONSTANTS IAC CURVE SHAPE IAC Extremely Inverse 0.0040 0.6379 0.6200 1.7872...
Page 314 197.531 62.500 12.346 3.906 1.600 0.772 0.416 0.244 0.152 0.100 100.00 1975.31 625.00 123.46 39.06 16.00 7.72 4.16 2.44 1.52 1.00 600.00 11851.9 3750.0 740.7 234.4 96.00 46.3 25.0 14.65 9.14 6.00 4–182 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 315: Percent Of Load-To-Trip
It is the ratio of this current to the lowest pickup setting among the phase time and the instantaneous overcurrent elements. If all of these elements are disabled, the value displayed is “0”. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–183...
Page 316: Phase Time Overcurrent Protection (51P)
PROTECTION CHAPTER 4: SETPOINTS Phase Time The 869 relay TOC element can be configured with any of the IEEE, ANSI, IEC, and IAC Overcurrent standard inverse curves, any of the four FlexCurves, or set to definite time. The selection of...
Page 317 Figure 4-65: Voltage Restraint characteristics for Phase TOC BLOCK Range: Off, Any FlexLogic operand Default: Off OUTPUT RELAY X For details see Common Setpoints. EVENTS Range: Enabled, Disabled Default: Enabled TARGETS Range: Self-reset, Latched, Disabled Default: Self-reset 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–185...
Page 318 PROTECTION CHAPTER 4: SETPOINTS Figure 4-66: Phase Time Overcurrent Protection logic diagram 4–186 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 319: Phase Instantaneous Overcurrent Protection (50P)
CHAPTER 4: SETPOINTS PROTECTION Phase Instantaneous The 869 IOC element consists of the equivalent of three separate instantaneous Overcurrent overcurrent relays (one per phase) - ANSI device 50P - all with identical characteristics. The settings of this function are applied to each of the three phases to produce Pickup and Trip Protection (50P) flags per phase.
Page 320 PROTECTION CHAPTER 4: SETPOINTS Figure 4-67: Phase Instantaneous Overcurrent logic diagram 4–188 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 321: Phase Directional Overcurrent Protection (67P)
CHAPTER 4: SETPOINTS PROTECTION Phase Directional The 869 Phase Directional Overcurrent protection elements (one for each of phases A, B, Overcurrent and C) determine the phase current flow direction for steady state and fault conditions and can be used to control the operation of the phase overcurrent elements by sending Protection (67P) directional bits to inputs of these elements.
Page 322 10 ms must therefore be added to all the instantaneous protection elements under the supervision of the Phase Directional element. If current reversal is a concern, a longer delay – in the order of 20 ms – is needed. 4–190 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 323 CHAPTER 4: SETPOINTS PROTECTION Figure 4-68: Phase Directional Overcurrent Protection logic diagram 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–191...
Page 324: Neutral Time Overcurrent Protection (51N)
PROTECTION CHAPTER 4: SETPOINTS Neutral Time The 869 computes the neutral current (In) using the following formula: Overcurrent |In|=|Ia+Ib+Ic| Protection (51N) The settings of this function are applied to the neutral current to produce Trip or Pickup flags. The Neutral TOC Pickup flag is asserted when the neutral current is above the PKP value.
Page 325 CHAPTER 4: SETPOINTS PROTECTION BLOCK Range: Off, Any FlexLogic operand Default: Off OUTPUT RELAY X For details see Common Setpoints. EVENTS Range: Enabled, Disabled Default: Enabled TARGETS Range: Self-reset, Latched, Disabled Default: Self-reset 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–193...
Page 326 PROTECTION CHAPTER 4: SETPOINTS Figure 4-69: Neutral Time Overcurrent Protection logic diagram 4–194 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 327: Neutral Instantaneous Overcurrent Protection (50N)
CHAPTER 4: SETPOINTS PROTECTION Neutral The 869 Neutral Instantaneous Overcurrent protection element computes the neutral Instantaneous current (In) using the following formula: Overcurrent |In| = |Ia + Ib + Ic| Protection (50N) The element essentially responds to the magnitude of a neutral current fundamental frequency phasor calculated from the phase currents.
Page 328 PROTECTION CHAPTER 4: SETPOINTS EVENTS Range: Enabled, Disabled Default: Enabled TARGETS Range: Self-reset, Latched, Disabled Default: Self-reset 4–196 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 329 CHAPTER 4: SETPOINTS PROTECTION Figure 4-70: Neutral Instantaneous Overcurrent Protection logic diagram 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–197...
Page 330: Neutral Directional Overcurrent Protection (67N)
PROTECTION CHAPTER 4: SETPOINTS Neutral Directional The 869 Neutral Directional Overcurrent protection element provides both forward and Overcurrent reverse fault direction indications: the Ntrl Dir OC FWD and Ntrl Dir OC REV, respectively. The output operands are asserted if the magnitude of the operating current is above a...
Page 331 Region 3I_0 line ECA line -ECA line -3I_0 line REV LA FWD LA line line 3V_0 line 827805A1.CDR Path: Setpoints > Protection > Group 1(6) > Current > Neutral Directional OC 1(X) 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–199...
Page 332 Range: 0.000 to 0.500 in steps of 0.001 Default: 0.063 This setting controls the amount of the positive-sequence restraint. Set to zero to remove the restraint. Set higher if large system unbalances or poor CT performance are expected. 4–200 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 333 When selecting this setting it must be kept in mind that the design uses a ‘positive-sequence restraint’ technique for the “Calculated 3I0” mode of operation. BLOCK Range: Off, Any FlexLogic operand Default: Off EVENTS Range: Enabled, Disabled Default: Enabled TARGETS Range: Self-reset, Latched, Disabled Default: Self-reset 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–201...
Page 334 PROTECTION CHAPTER 4: SETPOINTS Figure 4-72: Neutral Directional Overcurrent Protection logic diagram 4–202 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 335: Ground Time Overcurrent Protection (51G)
CHAPTER 4: SETPOINTS PROTECTION Ground Time The 869 is equipped with the Ground Time Overcurrent protection element. The settings of Overcurrent this function are applied to the ground input current to produce Trip or Pickup flags. The Ground TOC Pickup flag is asserted when the ground current is above the PKP value. The...
Page 336 PROTECTION CHAPTER 4: SETPOINTS Figure 4-73: Ground Time Overcurrent Protection logic diagram 4–204 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 337: Ground Instantaneous Overcurrent Protection (50G)
CHAPTER 4: SETPOINTS PROTECTION Ground Instantaneous The 869 relay is equipped with the Ground Instantaneous Overcurrent protection element. Overcurrent The settings of this function are applied to the measured Ground current for producing Pickup and Trip flags. The Ground IOC Pickup flag is asserted when the Ground current is Protection (50G) above the PKP value.
Page 338 PROTECTION CHAPTER 4: SETPOINTS Figure 4-74: Ground Instantaneous Overcurrent Protection logic diagram 4–206 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 339: Negative Sequence Instantaneous Overcurrent Protection (50_2)
The Negative Sequence Instantaneous Overcurrent element may be used to determine and clear unbalance in the system. The input for computing negative Overcurrent sequence current is the fundamental phasor value. The 869 computes the negative Protection (50_2) sequence current magnitude |I_2| using the following formula: |I_2|=1/3*|Ia+Ib*(1∠240º)+Ic*(1∠120 º)|...
Page 340 PROTECTION CHAPTER 4: SETPOINTS EVENTS Range: Enabled, Disabled Default: Enabled TARGETS Range: Self-reset, Latched, Disabled Default: Self-reset 4–208 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 341 CHAPTER 4: SETPOINTS PROTECTION Figure 4-75: Negative Sequence Instantaneous Overcurrent logic diagram 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–209...
Page 342: Voltage Elements
Group 3 Auxiliary OV Frequency Monitoring Group 4 Neutral OV Control Group 5 Neg Seq OV FlexLogic Volts per Hertz Group 6 Testing Level 1 Level 2 Level 3 Level 4 Level 5 4–210 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 343: Phase Reversal (47)
CHAPTER 4: SETPOINTS PROTECTION Phase Reversal (47) The 869 can detect the phase rotation of the three phase voltages. When all three Phase- to-Phase Voltages (V and V ) are greater than 50% of VT, if the phase rotation of the...
Page 344 PROTECTION CHAPTER 4: SETPOINTS Figure 4-77: Phase Reversal logic diagram 4–212 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 345: Undervoltage Curves
1.1 x PKP (not at 0.82 x PKP). On the other hand, when the measured voltage is 1 x VT, the ratio is 0.9/1 = 0.9, therefore, in the FlexCurve, the corresponding Reset time entry is at 0.9 x PKP. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–213...
Page 346: Phase Undervoltage Protection (27P)
PROTECTION CHAPTER 4: SETPOINTS Phase Undervoltage The 869 relay is equipped with the Phase Undervoltage (UV) element. The Phase Protection (27P) Undervoltage element may be used to protect voltage sensitive loads and system components against sustained undervoltage conditions. This element may be used for permissive functions, initiation of the source transfer schemes, and similar functions.
Page 347 Undervoltage Curves. BLOCK Range: Off, Any FlexLogic operand Default: Off OUTPUT RELAY X For details see Common Setpoints. EVENTS Range: Enabled, Disabled Default: Enabled TARGETS Range: Disabled, Self-reset, Latched Default: Self-reset 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–215...
Page 348 PROTECTION CHAPTER 4: SETPOINTS Figure 4-79: Phase Undervoltage Protection logic diagram 4–216 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 349: Phase Overvoltage Protection (59P)
CHAPTER 4: SETPOINTS PROTECTION Phase Overvoltage The 869 relay provides two identical Phase Overvoltage (OV) elements per protection Protection (59P) group, or a total of 12 elements. Each Phase Overvoltage element may be used to protect voltage sensitive loads and system components against sustained overvoltage conditions.
Page 350 PROTECTION CHAPTER 4: SETPOINTS OUTPUT RELAY X For details see Common Setpoints. EVENTS Range: Enabled, Disabled Default: Enabled TARGETS Range: Disabled, Self-reset, Latched Default: Self-reset 4–218 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 351 CHAPTER 4: SETPOINTS PROTECTION Figure 4-80: Phase Overvoltage logic diagram 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–219...
Page 352: Auxiliary Undervoltage (27X)
PROTECTION CHAPTER 4: SETPOINTS Auxiliary The 869 relay provides two identical Auxiliary Undervoltage (UV) elements per protection Undervoltage (27X) group, or a total of 12 elements. Each Auxiliary Undervoltage element may be used to protect voltage sensitive loads and system components against sustained undervoltage conditions.
Page 353 CHAPTER 4: SETPOINTS PROTECTION BLOCK Range: Off, Any FlexLogic operand Default: Off OUTPUT RELAY X For details see Common Setpoints. EVENTS Range: Enabled, Disabled Default: Enabled TARGETS Range: Disabled, Self-reset, Latched Default: Self-reset 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–221...
Page 354 PROTECTION CHAPTER 4: SETPOINTS Figure 4-81: Auxiliary Undervoltage Protection logic diagram 4–222 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 355: Auxiliary Overvoltage Protection (59X)
CHAPTER 4: SETPOINTS PROTECTION Auxiliary Overvoltage The 869 relay provides one Auxiliary Overvoltage (OV) element per protection group, or a Protection (59X) total of 6 elements. Each Auxiliary OV element is used to protect voltage sensitive loads and system components against sustained overvoltage conditions. This element can be used for monitoring zero-sequence voltage (from an "open corner delta"...
Page 356 Default: 1.000 s BLOCK Range: Off, Any FlexLogic operand Default: Off OUTPUT RELAY X For details see Common Setpoints. EVENTS Range: Enabled, Disabled Default: Enabled TARGETS Range: Disabled, Self-reset, Latched Default: Self-reset 4–224 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 357 CHAPTER 4: SETPOINTS PROTECTION Figure 4-83: Auxiliary Overvoltage Protection logic diagram 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–225...
Page 358: Neutral Overvoltage Protection (59N)
PROTECTION CHAPTER 4: SETPOINTS Neutral Overvoltage The 869 relay provides one Neutral Overvoltage (also called Neutral Displacement) (Neutral Protection (59N) OV) element per protection group. The Neutral Overvoltage element can be used to detect asymmetrical system voltage conditions caused by a ground fault or the loss of one or two phases of the source. The element responds to the system neutral voltage (3V_0), calculated from the phase voltages.
Page 359 CHAPTER 4: SETPOINTS PROTECTION BLOCK Range: Off, Any FlexLogic operand Default: Off OUTPUT RELAY X For details see Common Setpoints. EVENTS Range: Enabled, Disabled Default: Enabled TARGETS Range: Disabled, Self-reset, Latched Default: Self-reset 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–227...
Page 360 PROTECTION CHAPTER 4: SETPOINTS Figure 4-84: Neutral Overvoltage Protection logic diagram 4–228 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 361: Negative Sequence Overvoltage Protection (59_2)
CHAPTER 4: SETPOINTS PROTECTION Negative Sequence The 869 relay provides one Negative Sequence Overvoltage (Negative Sequence OV 1) Overvoltage element per protection group, or a total of 6 elements. Protection (59_2) The Negative Sequence Overvoltage element can be used to detect an asymmetrical system voltage condition, loss of one or two phases of the source, or reversed phase sequence of voltages.
Page 362 PROTECTION CHAPTER 4: SETPOINTS Figure 4-85: Negative Sequence Overvoltage Protection logic diagram 4–230 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 363: Volts Per Hertz (24)
If the Phase VT Connection (set under ) is selected as Setpoint > System > Voltage Sensing “Delta”, then the phase-to-phase nominal voltage is used to define the per-unit value, regardless of the Voltage Mode selection. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–231...
Page 364 TDM= Time Delay Multiplier (delay in seconds) V = fundamental RMS value of voltage (pu) F = frequency of voltage signal (pu) Pickup = volts-per-hertz pickup setpoint (pu) The volts/hertz inverse A curves are shown below. 4–232 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 365 TDM = Time Delay Multiplier (delay in seconds) V = fundamental RMS value of voltage (pu) F = frequency of voltage signal (pu) Pickup = volts-per-hertz pickup setpoint (pu) The Volts/Hertz inverse B curves are shown below. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–233...
Page 366 V = fundamental RMS value of voltage (pu) F = frequency of voltage signal (pu) Pickup = volts-per-hertz pickup setpoint (pu) The Volts/Hertz Inverse C curves are shown below. Figure 4-88: Volts-Per-Hertz Curves for Inverse Curve C 4–234 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 367 The Volts per Hertz can be blocked by any asserted FlexLogic operand. OUTPUT RELAY X For details see Common Setpoints. EVENTS Range: Enabled, Disabled Default: Enabled TARGETS Range: Disabled, Self-reset, Latched Default: Self-reset 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–235...
Page 368: Impedance Elements
PROTECTION CHAPTER 4: SETPOINTS Figure 4-89: Volts per Hertz logic diagram Impedance Elements Figure 4-90: Impedance Elements Display Hierarchy 4–236 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 369 Data Capture Group 2 Impedance Out-of-step Data Capture Protection Group 3 Power Monitoring Group 4 Frequency Control Group 5 FlexLogic Group 6 Testing Level 1 Level 2 Level 3 Level 4 Level 5 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–237...
Page 370: Out-Of-Step (78)
The OOS OP FlexLogic operand can be used to trip the circuit breaker to isolate the loss-of-synchronism motor. Follow these steps for a typical setting procedure of the out-of-step element: Carry out detailed transient stability studies for the overall system. 4–238 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 371 Validate the settings with the transient stability study cases. Figure 4-91: A Typical Out-of-step Setting Path: Setpoints > Protection > Group 1(6) > Impedance > Out of Step FUNCTION Range: Disabled, Trip, ALarm, Latched Alarm, Configurable Default: Disabled 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–239...
Page 372 This time delay must be set shorter than the time required for the impedance locus to travel between the left and right blinders during the fastest expected out-of-step. Setting the delay too long can reduce dependability. 4–240 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 373 Range: Off, Any operand from the list of FlexLogic operands Default: Off OUTPUT RELAY X For details see Common Setpoints. EVENTS Range: Enabled, Disabled Default: Enabled TARGETS Range: Self-reset, Latched, Disabled Default: Latched 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–241...
Page 374 PROTECTION CHAPTER 4: SETPOINTS Figure 4-92: Out-of-step Protection Logic Diagram 4–242 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 375: Power Elements
CHAPTER 4: SETPOINTS PROTECTION Power Elements Figure 4-93: Power Elements Display Hierarchy 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–243...
Page 376: Directional Power (32)
PROTECTION CHAPTER 4: SETPOINTS Directional Power (32) The 869 relay provides two identical Directional Power elements per protection group; a total of 12 elements. The Directional Power element responds to three-phase directional power and is designed for reverse power (32REV) and low forward power (32FWD) applications for synchronous machines or interconnections involving co-generation.
Page 377 CHAPTER 4: SETPOINTS PROTECTION Figure 4-95: Sample applications of the Directional Power element 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–245...
Page 378 RCA = 180° and SMIN = 0.017 x Rated. The element drops out if the magnitude of the positive-sequence current becomes virtually zero, that is, it drops below the cutoff level. 4–246 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 379 2 for tripping. BLOCK Range: Off, Any FlexLogic operand Default: Off OUTPUT RELAY X For details see Common Setpoints. EVENTS Range: Enabled, Disabled Default: Enabled TARGETS Range: Self-reset, Latched, Disabled Default: Self-reset 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–247...
Page 380 PROTECTION CHAPTER 4: SETPOINTS Figure 4-96: Directional Power logic diagram 4–248 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 381: Reactive Power (40Q)
This setting specifies a pickup threshold for the negative var alarm function. POSITIVE VAR ALARM DELAY Range: 0.00 to 600.00 s in steps of 0.01 s Default: 10.00 s This setting specifies a time delay for the positive var alarm function. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–249...
Page 382 BLOCK Range: Off, Any FlexLogic operand Default: Off EVENTS Range: Disabled, Enabled Default: Disabled TARGETS Range: Disabled, Self-reset, Latched Default: Self-reset 4–250 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 383 CHAPTER 4: SETPOINTS PROTECTION Figure 4-97: Reactive Power Logic Diagram 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–251...
Page 384: Frequency Elements
Figure 4-98: Frequency Elements Display Hierarchy Underfrequency (81U) The 869 can be used as the primary detecting relay in automatic load-shedding schemes based on underfrequency. The need for such a relay arises if during a system disturbance, an area becomes electrically isolated from the main system and suffers a generation deficiency due to the loss of either transmission or generation facilities.
Page 385 A setting of zero is suspend current supervision. BLOCK Range: Off, Any FlexLogic operand Default: Off OUTPUT RELAY X For details see Common Setpoints. EVENTS Range: Enabled, Disabled Default: Enabled TARGETS Range: Disabled, Self-reset, Latched Default: Self-reset 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–253...
Page 386 PROTECTION CHAPTER 4: SETPOINTS Figure 4-99: Underfrequency Protection logic diagram 4–254 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 387: Overfrequency (81O)
CHAPTER 4: SETPOINTS PROTECTION Overfrequency (81O) The 869 relay provides two identical Overfrequency (OVERFREQ) elements per protection group, or a total of 12 elements. A significant overfrequency condition, likely caused by a breaker opening and disconnecting load from a particular generation location, can be detected and used to quickly ramp the turbine speed back to normal.
Page 388 BLOCK Range: Off, Any FlexLogic operand Default: Off OUTPUT RELAY X For details see Common Setpoints. EVENTS Range: Enabled, Disabled Default: Enabled TARGETS Range: Disabled, Self-reset, Latched Default: Self-reset 4–256 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 389 CHAPTER 4: SETPOINTS PROTECTION Figure 4-100: Overfrequency Protection logic diagram 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–257...
Page 390: Frequency Rate Of Change (81R)
Configurable setting is selected and the element operates TREND Range: Decreasing, Increasing, Bi-directional Default: Decreasing The setting allows configuring of the element to respond to increasing or decreasing frequency, or to a frequency change in either direction. 4–258 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 391 Typical application includes load shedding. Set the Pickup threshold to zero if no overcurrent supervision is required. The setting of zero suspends the current supervision. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–259...
Page 392 When set to “Latched,” the target message will remain visible after the element output returns to logic 0 until a RESET command is received by the relay. 4–260 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 393 CHAPTER 4: SETPOINTS PROTECTION Figure 4-101: Frequency Rate-of-Change Protection logic diagram 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–261...
Page 394: Monitoring
Level 4 Breaker Trip and Close Circuit The 869 relay provides Trip and Close Circuit Monitoring elements. Monitoring The first and second Form A relay outputs on slot “F” include a circuit to monitor the DC voltage across the output contact when it is open. To do that, an external jumper is wired between the terminals “FA_1 COM”...
Page 395 Output Relay 1 (TRIP) FA_1 FA_1 FA_1 OPT/V contact Trip Coil DC - Figure 4-104: Close Coil Circuit without Monitoring DC + Output Relay 2 (CLOSE) FA_2 FA_2 FA_2 OPT/V contact Close Coil DC - 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–263...
Page 396 52a in the trip circuit (across 52b contact(s) for Close coil). With such connections, the trickle current is maintained by the resistor. For these applications the setting for the Bypass Breaker Status should be set to ENABLED. 4–264 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 397 Table 4-35: Value of Resistor “R” Power Supply (V DC) Resistance (Ohms) Power (Watts) 1000 10000 25000 25000 50000 Trip and Close Contacts must be considered unsafe to touch when the relay is DANGER: energized. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–265...
Page 398 (not closed) open. BLOCK: Range: Off, Any FlexLogic operand Default: Off OUTPUT RELAY X For details see Common Setpoints. EVENTS: Range: Disabled, Enabled Default: Enabled TARGETS: Default: Self-reset Range: Disabled, Self-reset, Latched 4–266 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 399 CHAPTER 4: SETPOINTS MONITORING Figure 4-108: Trip Circuit Monitoring Diagram 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–267...
Page 400 OUTPUT RELAY X Range: Do Not Operate, Operate Default: Do Not Operate BLOCK: Default: Off Range: Off, Any FlexLogic operand EVENTS: Range: Disabled, Enabled Default: Enabled TARGETS: Range: Disabled, Self-reset, Latched Default: Self-reset 4–268 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 401 CHAPTER 4: SETPOINTS MONITORING Figure 4-109: Close Circuit Monitoring Diagram 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–269...
Page 402: Breaker Arcing Current
MONITORING CHAPTER 4: SETPOINTS Breaker Arcing The 869 relay provides one Breaker Arcing Current element.This element calculates an Current estimate of the per-phase wear on the breaker contacts by measuring and integrating the current squared passing through the breaker contacts as an arc. These per-phase values are added to accumulated totals for each phase and compared to a programmed threshold value.
Page 403 CHAPTER 4: SETPOINTS MONITORING BLOCK Range: Off, Any FlexLogic operand Default: Off OUTPUT RELAYS X For details see Common Setpoints. EVENTS Range: Enabled, Disabled Default: Enabled TARGETS Range: Self-reset, Latched, Disabled Default: Self-reset 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–271...
Page 404 MONITORING CHAPTER 4: SETPOINTS Figure 4-111: Breaker Arcing Current logic diagram 4–272 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 405: Breaker Health
MONITORING Breaker Health The 869 relay provides breaker health information by monitoring and analyzing the operation count, arcing energy of breaking current, arcing time, tripping time, closing time and spring charging time if applicable. The breaker health status depends on many factors, such as permissible operation number, magnitude of breaking current, mechanical wear and contact wear.
Page 406 Range: 0.000 to 6000.000 s in steps of 0.001 s Default: 15.000 s This setting sets the Pickup level of the Spring Charge time. The Spring Charge time is measured from the pulse duration of the SPRING CHARGE STATUS. 4–274 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 407 LED is lit and one operand is asserted. BLOCK Range: Off, Any FlexLogic operand Default: Off OUTPUT RELAY X For details see Common Setpoints. EVENTS Range: Enabled, Disabled Default: Enabled TARGETS Range: Disabled, Self-reset, Latched Default: Self-reset 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–275...
Page 408 MONITORING CHAPTER 4: SETPOINTS Figure 4-112: Breaker Health and Operation logic diagram 4–276 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 409: Broken Rotor Bar
Patented Power Based Coherent Demodulation method is based on the multiplication of the current signal with any supply of fundamental frequency signal. The supply frequency signal is readily available in the voltage signal. Hence, for coherent demodulation, the 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–277...
Page 410 The LED “ALARM” is cleared by issuing the reset command.When the Configurable function is selected, the ALARM LED does not turn on automatically. They need to be configured using their own menus and flexlogic operands. 4–278 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 411 The Broken Rotor Bar detection algorithm cannot accurately determine the BRB spectral component when the motor load varies. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–279...
Page 412 The selection of the Enabled setting enables the events of Broken Rotor Bar function. TARGETS: Range: Self-reset, Latched, Disabled Default: Self-reset The selection of Self-reset or Latched settings enables the targets of the Broken Rotor Bar function. 4–280 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 413 CHAPTER 4: SETPOINTS MONITORING Figure 4-114: Broken Rotor Bar Logic Diagram 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–281...
Page 414: Electrical Signature Analysis (Esa)
M&D. The following high-level procedure describes how a motor is diagnosed: ESA is part of existing Multilin 869 Protection Relay product. Hence ESA captures current signal from the same CT sensing mechanism available in 869 relay. No additional sensing or wiring mechanism is required to install or use ESA (M&D) with the 869 relay.
Page 415 The following example is indicative of how a change in dB is computed at various fault frequencies. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–283...
Page 416 The entire circle is divided into 12 equal sections covering 30 degrees of circumference corresponding to each load bin. Load bin 1 starts at 0 degrees and ends with load bin 12 at the 360 degree point in the anti-clockwise direction. 4–284 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 417 Data Record) format under the section Motor M&D\Records\Historical log as shown in the next screenshot. Details of learned data record view can be found in section Records\Motor Learned Data (of the 869 instruction manual). – Additionally, the file can be converted to .xlsx or .xls format and opened using Microsoft excel for analysis purposes or the trending of any parameter(s).
Page 418 Change in Energy dB and Change in Peak Magnitude dB. Change in Energy dB = Energy dB (Latest) – Energy dB (Baseline) Eq. 29 Change in Peak Magnitude dB = Peak magnitude dB (Latest) – Peak magnitude dB (Baseline)Eq. 30 4–286 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 419 Failure of insulation leading to turn-turn, phase-phase, coil-coil, phase to ground etc. faults • Rotor striking the stator due to misalignment or shaft deflection, bearing failure causing stator laminations to puncture the coil insulation leading to coil to ground fault 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–287...
Page 420 • Environment stress based on ambient temperature The 869 relay detects stator faults using ESA based on fault frequencies computed as: CF ± Supply frequency sidebands and CF ± Supply frequency ± Rotational frequency sidebands...
Page 421 (Mandatory) Path: Setpoints > Monitoring > ESA Some of the existing settings in 869 as mentioned in the preceding list will be re-used for NOTE: ESA computation hence it is necessary to configure them. Since ESA is dependent on speed and frequency, it is mandatory to configure the rated speed. In addition, frequency tracking must be enabled for accurate ESA results.
Page 422 Default: Disabled Baseline mode is disabled by default. During installation/commissioning baseline mode must be enabled along with having a set baseline period. The 869 will capture baseline data for the specified time period then go back to operational mode automatically. If necessary, the user can clear the baseline data and restart data capture by enabling baseline mode and setting or changing the baseline period.
Page 423 Configure the minimum dB level above the baseline dB level (for any load bin) at which the bearing fault operand level 1 (level 2) picks up. This setting is applicable to both peak magnitude and energy at peak magnitude. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–291...
Page 424 (Example: a default of 75dB for Flt PKP Stg 1 and 65dB for Flt PKP Stg 2). 4–292 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 425: Stator Inter-Turn Fault
“Neg Seq Imp Autoset” is set toManual. This value can be calculated from the machine equivalent circuit parameters (i.e. winding inductance and resistance). It can also be measured by deliberately applying the unbalance condition during commissioning. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–293...
Page 426 PICKUP STAGE 1: Range: 0.001 to 10.000 in steps of 0.001 Default: 0.100 This setting specifies a first pickup threshold of the ratio between Z and Z averaged over 100 msec. 4–294 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 427 The selection of the Enabled setting enables the events of the Stator Inter-turn fault function. TARGETS: Range: Self-reset, Latched, Disabled Default: Latched The selection of the Self-reset or Latched settings enables the targets of Stator Inter-turn fault function. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–295...
Page 428 MONITORING CHAPTER 4: SETPOINTS Figure 4-123: Stator Inter-Turn Fault Protection logic diagram 4–296 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 429: Functions
Functions Power Factor The 869 is applied on a synchronous machine, it is desirable not to trip or alarm on power factor until the field has been applied. Therefore, this feature can be blocked until the machine comes up to speed and the field is applied. From that point forward, the power factor trip and alarm elements will be active.
Page 430 Default: Disabled This setting enables the Power Factor Trip functionality. TRIP LEAD LEVEL Range: 0.05 to 1.00 in steps of 0.01 Default: 1.00 Lag This setting specifies the Power Factor Lead Trip level. 4–298 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 431 Range: 0.00 to 600.00 s in steps of 0.01 s Default: 1.00 s The setting specifies a dropout time delay for the alarm function. ALARM OUTPUT RELAY X For details see Common Setpoints. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–299...
Page 432 The element is blocked when the selected operand is asserted. EVENTS Range: Enabled, Disabled Default: Enabled The selection of the Enabled setting enables the events of the function. TARGETS Range: Disabled, Self-reset, Latched Default: Self-reset 4–300 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 433 CHAPTER 4: SETPOINTS MONITORING Figure 4-126: Power Factor logic diagram 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–301...
Page 434: Demand
This setpoint sets the Current Demand Pickup level. BLOCK Range: Off, Any FlexLogic operand Default: Off OUTPUT RELAY X For details see Common Setpoints. EVENTS Range: Enabled, Disabled Default: Enabled TARGETS Range: Disabled, Self-reset, Latched Default: Self-reset 4–302 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 435 CHAPTER 4: SETPOINTS MONITORING Figure 4-127: Current Demand logic diagram 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–303...
Page 436 Pickup comparison. BLOCK Range: Off, Any FlexLogic operand Default: Off OUTPUT RELAYS X For details see Common Setpoints. EVENTS Range: Enabled, Disabled Default: Enabled TARGETS Range: Disabled, Self-reset, Latched Default: Self-reset 4–304 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 437 CHAPTER 4: SETPOINTS MONITORING Figure 4-128: Real Power Demand logic diagram 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–305...
Page 438 Pickup comparison. BLOCK Range: Off, Any FlexLogic operand Default: Off OUTPUT RELAY X For details see Common Setpoints. EVENTS Range: Enabled, Disabled Default: Enabled TARGETS Range: Disabled, Self-reset, Latched Default: Self-reset 4–306 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 439 CHAPTER 4: SETPOINTS MONITORING Figure 4-129: Reactive Power Demand logic diagram 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–307...
Page 440 The setting sets the Apparent Power Demand Pickup level. BLOCK Range: Off, Any FlexLogic operand Default: Off OUTPUT RELAY X For details see Common Setpoints. EVENTS Range: Enabled, Disabled Default: Enabled TARGETS Range: Disabled, Self-reset, Latched Default: Self-reset 4–308 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 441 CHAPTER 4: SETPOINTS MONITORING Figure 4-130: Apparent Power Demand logic diagram 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–309...
Page 442: Pulsed Outputs
This feature is programmed such that no more than one pulse per two seconds is required. The 869 is not a revenue class meter and cannot be used for billing purposes. Energy quantities are displayed in MWh and MVarh, with resolutions of 1 kWh and 1 kVarh respectively.
Page 443 CHAPTER 4: SETPOINTS MONITORING EVENTS Range: Disabled, Enabled Default: Enabled TARGETS Range: Disabled, Self-reset, Latched Default: Self-Reset 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–311...
Page 444 MONITORING CHAPTER 4: SETPOINTS Figure 4-131: Pulsed Outputs logic diagram 4–312 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 445: Digital Counters
MONITORING Digital Counters The 869 relay provides sixteen identical Digital Counters. A Digital Counter counts the number of state transitions from logic 0 to logic 1. The Digital Counters are numbered from 1 to 16. The counters are used to count operations such as the Pickups of an element, the changes of state of an external contact (e.g.
Page 446 The counter accumulated value can be reset to zero either by asserting an operand NOTE: programmed under Reset from the counter menu, executing the clear Digital Counters command under the Records/Clear menu, or by setting the function of the counter to “Disabled”. 4–314 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 447 CHAPTER 4: SETPOINTS MONITORING Figure 4-132: Digital Counter logic diagram 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–315...
Page 448: Harmonic Detection
If the fundamental magnitude on any of the three phases goes below the current cut-off level, the selected harmonic current from that phase is dropped (zeroed) from the equation for averaging, and the divider is decreased from 3 to 2. The same happens if 4–316 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 449 A similar adaptive average algorithm is applied to calculate the average of operation current magnitude. OUTPUT RELAY X For details see Common Setpoints. EVENTS Range: Disabled, Enabled Default: Enabled TARGETS Range: Self-reset, Latched, Disabled Default: Latched 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–317...
Page 450 MONITORING CHAPTER 4: SETPOINTS Figure 4-133: Harmonic Detection logic diagram 4–318 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 451: Speed
MONITORING Speed The 869 is capable of measuring the motor speed. Any of the input contacts can be used to read the pulses from the input source. The source of the pulses can be an inductive proximity probe or Hall Effect gear tooth sensor. The probe could be powered from a power supply with a maximum of 48 VDC.
Page 452 When the internal +24 V supply is used to power the probe, the current limitations of the 24V supply must be considered. RATED SPEED Range: 100 to 7200 RPM in steps of 1 Default: 3600 RPM RPM defines the rated speed of the motor. 4–320 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 453 ALARM PICKUP DELAY Range: 0.00 to 600.00 s steps of 0.01 s Default: 1.00 s This setting specifies a time delay for the Alarm function. ALARM OUTPUT RELAY X For details see Common Setpoints. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–321...
Page 454 BLOCK Range: Off, Any FlexLogic operand Default: Off The Speed protection can be blocked by any asserted FlexLogic operand. EVENTS Range: Disabled, Enabled Default: Enabled TARGETS Range: Disabled, Self-Reset, Latched Default: Latched 4–322 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 455 CHAPTER 4: SETPOINTS MONITORING Figure 4-135: Speed Protection logic diagram 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–323...
Page 456: Rtd Temperature
These channels are intended to be connected to any of the RTD types in common use. Depending on the order code, the 869 can be furnished with up to two optional RTD cards. Each card has six RTD input channels. Only slots “B” and “C” can accept RTD cards. When two RTD cards are used, then inputs on the card inserted into slot “B”...
Page 457 NOTE: RTD Protection The 869 relay can monitor up to 13 RTDs, each of which can be configured to have a trip temperature and an alarm temperature. The RTD protection setpoints can be seen only if an LVIO card or one or two RTD modules are installed and validated.
Page 458 Range: 1°C to 250°C in steps of 1°C (33°F to 482°F in steps of 2°F) Default: 130°C (266°F) ALARM PICKUP DELAY Range: 0 s to 600 s in steps of 1 s Default: 2 s 4–326 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 459 Default: 0 s ALARM OUTPUT RELAY X For details see Common Setpoints. BLOCK Range: Off, Any FlexLogic operand Default: Off EVENTS Range: Disabled, Enabled Default: Enabled TARGETS Range: Disabled, Self-reset, Latched Default: Latched 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–327...
Page 460 MONITORING CHAPTER 4: SETPOINTS Figure 4-137: RTD Protection logic diagram 4–328 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 461: Rtd Trouble
Range: Disabled, Alarm, Latched Alarm Default: Disabled ALARM OUTPUT RELAY X For details see Common Setpoints. EVENTS Range: Disabled, Enabled Default: Enabled TARGETS Range: Disabled, Self-reset, Latched Default: Latched Figure 4-138: RTD Trouble logic diagram 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–329...
Page 462: Loss Of Communications
For details see Common Setpoints. BLOCK Range: Off, Any FlexLogic operand Default: Off EVENTS Range: Disabled, Enabled Default: Enabled TARGETS Range: Disabled, Self-reset, Latched Default: Latched Figure 4-139: Loss of Communications logic diagram 4–330 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 463 CHAPTER 4: SETPOINTS MONITORING 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–331...
Page 464: Control
Level 4 Setpoint Group The 869 relay provides six setpoint groups. All setpoints contained under the protection setpoints are reproduced in six groups, identified as Setpoint Groups 1, 2, 3, 4, 5 and 6. These multiple setpoints provide the capability for both automatic and manual switching to protection settings for different operating situations.
Page 465 GROUP CHANGE INHIBIT 1 (UP TO 16) Range: Off, Any FlexLogic operand Default: Off The setpoint selects the FlexLogic operand that inhibits change of the active setpoint group. EVENTS Range: Disabled, Enabled Default: Enabled 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–333...
Page 466 CONTROL CHAPTER 4: SETPOINTS Figure 4-141: Setpoint Groups logic diagram 4–334 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 467: Start Supervision
Typical Wiring Diagram in chapter 2. Figure 4-142: Start Inhibit FlexLogic operand The four elements of Start Supervision are: Thermal Start Inhibit, Maximum Starting Rate, Time Between Starts, and Restart Delay. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–335...
Page 468: Thermal Inhibit
Start Inhibit element is disabled. The information about learned thermal capacity is stored in a non-volatile memory and it is available after the power is removed from the 869 . The TC is the largest thermal capacity used value from a number (N) of most recent successful starts. “N” is set in .
Page 469 Setpoint values in the range of 0 to 25% specify the margin to be included in the calculation of the adjusted Thermal Capacity Used at start value. Figure 4-143: Thermal Start Inhibit logic diagram 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–337...
Page 470: Maximum Starting Rate
The information about motor starts and stops within the past Interval is stored in non- volatile memory and remains in the memory after the power is removed from the 869. When the power is restored, the Maximum Starting Rate element continues working normally using the information collected before the power loss if the real time clock worked properly during the power loss.
Page 471 CHAPTER 4: SETPOINTS CONTROL EVENTS Range: Disabled, Enabled Default: Enabled TARGETS Range: Disabled, Self-reset, Latched Default: Latched Figure 4-144: Maximum Starting Rate logic diagram 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–339...
Page 472: Time Between Starts
The status of the Time Between Starts element (including the time) is stored into a non- volatile memory and remains in the memory after the power is removed from the 869. When the power is restored, the Time Between Starts element continues working normally using the information collected before the power loss if the real time clock worked properly during the power loss.
Page 473: Restart Delay
The status of the Restart Delay element (including the time) is stored into a non-volatile memory and remains in the memory after the power is removed from the 869. When the power is restored, the Restart Delay element continues working normally using the information collected before the power loss if the real time clock worked properly during the power loss.
Page 474: Reduced Voltage Starting
Figure 4-146: Restart Delay logic diagram Reduced Voltage Starting The 869 can control the transition of a reduced voltage starter from reduced to full voltage. That transition may be based on “Current Only”, “Current and Timer”, or “Current or Timer”...
Page 475 “Current Only”: When the motor load falls below the Start Current Level setting prior to the expiration of the Start Timer, a transition will be initiated by asserting the Reduced Volt Ctrl operand for a period of one second. Any contact output assigned to this 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–343...
Page 476 Default: 10.0 s BLOCK Range: Off, Any FlexLogic operand Default: Off TRIP OUTPUT RELAY X For details see Common Setpoints. EVENTS Range: Disabled, Enabled Default: Enabled TARGETS Range: Disabled, Self-Reset, Latched Default: Latched 4–344 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 477 CHAPTER 4: SETPOINTS CONTROL Figure 4-150: Reduced Start logic diagram 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–345...
Page 478: Local Control Mode (Breakers And Switches)
“Local Mode” input de-asserted), or LOCAL MODE (Local Mode setpoint asserted). Breaker Mode defaults The default value of the breaker control mode for the 869 with one breaker is Remote (Local Mode set to Off or the selected LOCAL MODE input de-asserted). In this mode, all programmed setpoints from the respective menus for Breaker Control and Switch Control (see the respective logic) are active.
Page 479 PB again to enable the selection. The local mode breaker (contactor) selection and operation is only active if the user has proper level security access. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–347...
Page 480 Local Control for breakers/Local Control for switches). When the block is active, the letter “B” appears in the SLD next to the controlled component Figure 4-152: SLD Pushbutton “Block” logic diagram 4–348 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 481 Tagging can be achieved in local mode using the front panel control from the configurable SLD screens. The Pushbutton “Tag” logic diagram shows the tagging logic diagram for a switch. The logic applies to one breaker or switch at the time in the single line diagram. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–349...
Page 482 (contactor) and for Open and Close commands to switches. If desired, one pair of pushbuttons can be programmed for Open and Close commands to both breakers (contactor) and switches. 4–350 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 483 CHAPTER 4: SETPOINTS CONTROL Figure 4-155: Local Control for breakers 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–351...
Page 484 CONTROL CHAPTER 4: SETPOINTS Figure 4-156: Local Control for Contactor 4–352 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 485 CHAPTER 4: SETPOINTS CONTROL Figure 4-157: Local Control for Switches 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–353...
Page 486 Range: Off, Pushbutton 1 ON,..Pushbutton 10 ON, Contact Input X Default: Pushbutton 1 ON This setpoint is active, when Local Mode is activated. The breaker (contactor) open command can be initiated by the selected faceplate pushbutton. 4–354 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 487 The tagging cannot be bypassed and can only be disabled (untagged) by pressing the TAG key again. EVENTS Range: Disabled, Enabled Default: Enabled TARGETS Range: Disabled, Self-reset, Latched Default: Self-reset 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–355...
Page 488: Breaker Control
Local Control Mode menu is set to Disabled. The breaker remote open and close commands are operational. The control for the 869 relay depends on the selected Switching Device, i.e. either Breaker FASTPATH: or Contactor. When Breaker is selected, the setpoints for contactor setup and contactor control are hidden on the relay, and when Contactor is selected, the setpoints for breaker are hidden.
Page 489 This setting specifies selection of an input which when asserted bypasses the asserted remote block close signal. Close command is permitted for the breaker. EVENTS Range: Disabled, Enabled Default: Enabled TARGETS Range: Disabled, Self-reset, Latched Default: Self-reset 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–357...
Page 490 CONTROL CHAPTER 4: SETPOINTS Figure 4-158: Breaker Control logic diagram 4–358 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 491: Contactor Control
The START command operates Output relay 2 if Setpoint > System > Contactor > Contactor FASTPATH: 1 > Close Relay Select is set to “Relay 2”. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–359...
Page 492 (stop motor) signal. The Open (Stop motor) command is permitted for the contactor. EVENTS Range: Disabled, Enabled Default: Enabled TARGETS Range: Disabled, Self-reset, Latched Default: Self-reset Figure 4-160: Contactor Control logic diagram 4–360 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 493 CHAPTER 4: SETPOINTS CONTROL 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–361...
Page 494: Switch Control (9)
To maintain the close/open command for a certain time, do so by either using the seal-in FASTPATH: timers Open Seal-In and Close Seal-In, or the setpoint "Seal-in" from the output relays, or FlexLogic. 4–362 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 495 This setting specifies the selection of an input which when asserted bypasses the block to the disconnect close control. The Close command is permitted. EVENTS Range: Disabled, Enabled Default: Enabled TARGETS Range: Disabled, Self-reset, Latched Default: Self-reset 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–363...
Page 496 CONTROL CHAPTER 4: SETPOINTS Figure 4-161: Switch Control logic diagram 4–364 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 497: Virtual Input Control
Virtual Input is also “On” until the “Off” command is received. If the Virtual Input type is “Self-Reset,” the command and status of this Virtual Input reverts to “Off” after one evaluation of the FlexLogic™ equations. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–365...
Page 498: Trip Bus
CHAPTER 4: SETPOINTS Trip Bus The 869 relay provides six identical Trip Bus elements. The Trip Bus element allows aggregating outputs of protection, control elements, inputs without using FlexLogic and assigning them in a simple and effective manner. Each Trip Bus can be assigned to trip, alarm or the other logic actions.
Page 499 CHAPTER 4: SETPOINTS CONTROL Figure 4-162: Trip Bus logic diagram 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–367...
Page 500: Breaker Failure (50Bf)
CHAPTER 4: SETPOINTS Breaker Failure (50BF) The 869 relay provides one Breaker Failure element. The Breaker Failure element determines that a breaker signaled to Trip has not cleared a fault within a definite time. The Breaker Failure scheme must Trip all breakers that can supply current to the faulted zone.
Page 501: Setup
In a microprocessor relay this time is not significant. In the 869 relay, the current magnitude ramps-down to zero in ¾ of a power cycle after the current is interrupted.
Page 502 (for example: breakers with opening resistors). Neutral current supervision is used to provide increased sensitivity. 4–370 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 503: Initiate
Ph IOC 1 OP Ph IOC 2 OP Ntrl TOC 1 OP Ntrl TOC 2 OP Ntrl IOC 1 OP Ntrl IOC 2 OP GND TOC 1 OP GND IOC 1 OP 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–371...
Page 504 CONTROL CHAPTER 4: SETPOINTS Figure 4-163: Breaker Failure logic diagram 4–372 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 505: Arc Flash Protection
Range: Off, Any FlexLogic operand Default: Off OUTPUT RELAY X For details see Common Setpoints. EVENTS Range: Disabled, Enabled Default: Enabled This setting enables or disables the events of the Arc Flash function. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–373...
Page 506 CONTROL CHAPTER 4: SETPOINTS TARGETS Range: Self-reset, Latched, Disabled Default: Latched Figure 4-164: Arc Flash logic diagram 4–374 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 507: Vt Fuse Failure (Vtff)
CONTROL VT Fuse Failure (VTFF) The 869 relay provides one VT Fuse Failure. The VT Fuse Failure detector can be used to raise an alarm and/or block elements that may operate incorrectly for a full or partial loss of AC potential caused by one or more blown fuses. Some elements that might be blocked (via the BLOCK input) are voltage restrained overcurrent, directional current, power functions.
Page 508 CONTROL CHAPTER 4: SETPOINTS Figure 4-165: VT Fuse Failure logic diagram 4–376 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 509: Flexlogic
User Manual > Logic Designer & Monitor in the EnerVista 8 Series Setup software. Figure 4-166: FlexLogic Display Hierarchy The states of all digital signals used in the 869 are represented by flags (FlexLogic™ operands). A digital “1” is represented by a 'set' flag. Any external contact change-of-state can be used to block an element from operating, as an input to a control feature in a 869 MOTOR PROTECTION SYSTEM –...
Page 510 Some types of operands are present in the relay in multiple instances; e.g. contact and remote inputs. These types of operands are grouped together (for presentation purposes only) on the faceplate display. The characteristics of the different types of operands are listed in the table below. 4–378 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 511 Breaker failure 1 operated with low level current supervision (includes breaker status supervision if set) BF1 52b Superv OP Breaker failure 1 operated with breaker status only BF1 OP Breaker failure 1 operated 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–379...
Page 512 DirPwr 1 Stg2 OP Stage 2 of the directional power element 1 has operated DirPwr 1 OP The directional power element has operated DirPwr 2 The same set of operands per DirPwr 1 4–380 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 513 Loss of excitation circle 2 pickup LOE Circle 2 OP Loss of excitation circle 2 operate Mechanical Jam Mech Jam PKP The mechanical jam element has picked up Mech Jam OP The mechanical jam element has operated 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–381...
Page 514 Percent Diff OP C Phase C differential has operated Percent Diff OP At least one Percent differential element has operated Percent Diff Warn Percent differential current exceeded 0.5 x PKP for 10s 4–382 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 515 Negative var trip stage has operated Reduced Voltage Start Reduced Volt Ctrl Asserted for one second upon a valid transition in any mode Reduced Volt Fail Asserted when an invalid transition occurs 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–383...
Page 516 Tab Pushbutton [X] is ON TAB PB [X] OFF Tab Pushbutton [X] is OFF TAB PB [X] PRESS Tab Pushbutton [X] is Pressed Down Targets Active Target At least one target is detected active 4–384 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 517 (positive) for only one DUAL ONE SHOT One shot that responds pass through the to both the positive and FlexLogic equation. There negative going edges. is a maximum of 64 ‘one shots’. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–385...
Page 518 A timer operator (for example, "TIMER 1") or Virtual Output assignment (for example, " = Virt Op 1") may only be used once. If this rule is broken, a syntax error will be declared. 4–386 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 519: Timers
LATCH 1 SET LATCH 1 RESET LATCH 1 ON LATCH 1 OFF Reset Dominant Previous State Previous State Set Dominant Previous State Previous State Path: Settings > FlexLogic > Non-volatile Latches > Latch 1(16) 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–387...
Page 520: Flexlogic Equation
The FlexLogic entries are defined as follows. Graphical Viewer: Clicking on the View button enables the FlexLogic equation to be presented in graphical format (Read-only). Refer to the “Viewing FlexLogic Graphics” section for more details. 4–388 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 521 “as is”. In a typical scenario where both the FlexLogic Designer and FlexLogic Editor are used for configuring FlexLogic, the updated time stamps will appear as shown in the following figure. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–389...
Page 522: Viewing Flexlogic Graphics
Graphics diagram. It is strongly recommended and helpful to view an equation as a graphic diagram before it is saved to the 869 device in order to troubleshoot any possible error in the equation. To View the FlexLogic Graphic Click on the View button at the top of the Type column in the FlexLogic Equation screen, see previous figure.
Page 523: Flexelements
For all the other combinations, the element displays 0.000 or N/A and will not assert any output operand. The analog value associated with one FlexElement can be used as an input to another FlexElement “Cascading”. Figure 4-169: FlexElement logic diagram 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–391...
Page 524 Delta mode the FlexElement can operate in either direction, no matter if the operating signal is increased or decreased. The operating signal is the difference between the two selected inputs. 4–392 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 525 Figure 4-170: Direction, Pickup, and Hysteresis setpoints In conjunction with the Operating Mode setting, the element could be programmed to provide two extra characteristics as shown in the figure following. Figure 4-171: Operating Input setpoint 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–393...
Page 526 PhaseVTSecondary is specified in the setting under Setpoints > System > Voltage Sensing, and PhaseCTSecondary is determined by the order code. 4–394 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 527 Input 1(+): J2 Vab RMS • Input 2 (-): J2 Vaux RMS (input from VT connected between phases A and B) • Operating Mode: Absolute • Input Comparison Mode: Level • Direction: Over 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–395...
Page 528 FlexElement settings: • Input 1(+): Pwr1 Apparent • Input 2(-): Off • Operating Mode: Absolute • Input Comparison Mode: Level • Direction: Under • Pickup: 0.0313 pu Power Factor Cap Bank Switch-In Example 4–396 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 529 Now, if the FlexElement is needed to drop down when the V/Hz ratio becomes equal to 1.1, the hysteresis can be calculated as:1.2pu-1.1pu = 0.1 puHysteresis = (0.1*100)/1.2 = 8.3% RTD inputs for Top-Bottom oil temperature on Transformer 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–397...
Page 530 Hysteresis: 0.0 % To configure the pickup setpoint for a total arcing current of 5000kA /cycle, the per-unit pickup value can be calculated as follows: Pickup = 5000kA *cycle/2000 kA *cycle = 2.500 pu 4–398 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 531: Testing
Normal (pre-fault), fault and post-fault conditions can be simulated to exercise a variety of relay features. There are three sets of input parameters used during simulation, each provides a particular state of the system as follows. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–399...
Page 532: Setup
VT Bank PHASE VT CONNECTION setpoint is Delta. Voltages are set in secondary VT units. The CT and VT Bank availability is dependent on the installed Order Code options. 4–400 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 533: Fault
For Ground CT: 0.000 to 46.000 x CT in steps of 0.001 x CT For CBCT: 0.000 to 15.000 A in steps of 0.001 Default: 0.000 x CT J1(K1) Fault la(lb,lc,lg) Angle: Range: -359.9° to 0.0° in steps of 0.1 Default: 0.0° 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–401...
Page 534: Post-Fault
For Ground CT: 0.000 to 46.000 x CT in steps of 0.001 x CT For CBCT: 0.000 to 15.000 A in steps of 0.001 Default: 0.000 x CT J1(K1) Postfault la(lb,lc,lg) Angle: Range: -359.9° to 0.0° in steps of 0.1 Default: 0.0° 4–402 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 535: Test Leds
The number of Output Relays available is dependent on the installed Order Code options. Output Relays setpoints here (in test mode) will revert to default values at power-up. NOTE: Path: Setpoints > Testing > Output Relays OUTPUT RELAY X Range: Off, On Default: Off 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–403...
Page 536: Ethernet Loopback Test
Write the “Number of Tests” register. The default is 500, and there is usually no need to change it. Initiate the test by Writing 1 for “Yes” to the “Test Start” command. Read the “Tests to Run” register. Once it is 0 the test is complete. 4–404 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 537 Actual Value, 16 bit enumeration 0XF214 0XF21A Tests to Run Actual Value, 16 bits 0xF215 0XF21B Tests Passed (Count) Actual Value, 16 bits 0xF216 0XF21C Tests Failed (Count) Actual Value, 16 bits 0xF217 0XF21D 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–405...
Page 538 TESTING CHAPTER 4: SETPOINTS 4–406 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 539 Grid Solutions 869 Motor Protection System Chapter 5: Status Status Figure 5-1: Main Status Screen 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 5–1...
Page 540: Status Summary
Upon pressing the Enter key, the tab labels change to the programmable tab pushbutton labels and a flash message for the breaker selected appears (Flash Message: “BKR1 Selected”). Pressing Escape de-selects the breaker/switch and the tab pushbutton labels. 5–2 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 541: Annunciator
The initial view of the Tab Pushbutton controls is the Summary page, which shows the status of all 20 pushbuttons. To operate the pushbuttons, the user must navigate to the individual pages where the tab pushbuttons can be used to activate them. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 5–3...
Page 542 1, one must press >> 4 times to cycle through and navigate to page 1 with pushbuttons 1 to 4. Alternatively, one can escape to the overall summary screen and navigate to any desired page of pushbuttons. 5–4 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 543: Motor
Running in synchronous motor application can result in the Motor Stopped instead of Motor Running. To prevent this, the 869 must always be programmed to monitor the status of the switching device by means of contact input of the relay.
Page 544 Motor Stopped condition instead of Motor Running. To prevent this, it is strongly recommended that the 869 is always programmed to monitor the status of the switching device by means of contact input of the relay.
Page 545: Breakers
Breaker Arcing Current element description for more details. Switches The status of each switch is displayed in a table under Status\ Switches menu. Path: Status > Switches SWITCH 1(X) Range: Not Configured, Opened, Closed, Intermittent, Discrepancy Default: Not Configured 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 5–7...
Page 546: Last Trip Data
Path: Status > Contact Inputs The status of the Contact Inputs is shown here (see device menu via the menu path). The ‘Off/On’ display indicates the logic state of the Contact Input. 5–8 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 547: Output Relays
The state of all virtual inputs is shown here, see next figure. The value for each Virtual Input is shown on the control panel graphically as a toggle switch in either the On (|) state or the Off (O) state. Figure 5-5: Status of Virtual Inputs 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 5–9...
Page 548: Virtual Outputs
Path: Status > Flex States There are 256 Flex state bits available. The status value indicates the state of the given Flex state bit. 5–10 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 549: Communications
GOOSE message can be a digital or analog value. Messages are launched within one scan of a digital point status change or an analog exceeding its deadband. The 869 server supports a subset of the server features described in part 7.2 of the IEC61850 standard.
Page 550 Default: YES MAIN VALIDATED OK Range: YES, NO Default: YES MAIN VALIDATED DONE Range: YES, NO Default: YES NOT RUNNING.ERROR CID Range: NO, YES Default: NO RUNNING.DEFAULT CID Range: NO, YES Default: NO 5–12 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 551 Range: NONE, ACTIVE Default: NONE ETHERNET IEC61850 Range: NONE, ACTIVE Default: NONE ETHERNET GOOSE Range: NONE, ACTIVE Default: NONE ETHERNET DEVICENET Range: NONE, ACTIVE Default: NONE ETHERNET PROFIBUS Range: NONE, ACTIVE Default: NONE 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 5–13...
Page 552 Range: 0 to 99 in steps of 1 Default: 0 SFTP - Maximum Range: 0 to 99 in steps of 1 Default: 0 SFTP - Remaining Range: 0 to 99 in steps of 1 Default: 0 5–14 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 553: Information
MAC Address 1: The MAC address for Ethernet port 4 • MAC Address 2: The MAC address for Ethernet port 5 Hardware Versions Path: Status > Information > Hardware Versions The Information related to the relay hardware is displayed here. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 5–15...
Page 554: Environment
EAM stayed in the ranges specified. • Surge Count: The number of surge (>500 V/1.2/50 µS) events that have occurred since the EAM started recording data. 5–16 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 555: Device Status
Default: NO BREAKER TRIPPED Range: YES, NO Default: NO ALARM Range: YES, NO Default: NO TRIP Range: YES, NO Default: NO ACTIVE GROUP Range: SP Group 1-6 Active Default: SP Group 1 Active 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 5–17...
Page 556: Clock
If an active master has been selected but lock is not at present established • SYNCH’D (NO PDELAY) If the port is synchronized, but the peer delay mechanism is non-operational • SYNCHRONIZED If the port is synchronized 5–18 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 557 The phase angles in 8 Series relays are always presented as negative values in the lagging direction as illustrated in the following. Figure 6-1: Phase Angle Measurement 8 Series Convention METERING 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 6–1...
Page 558 VTs; to the A-B voltage phasor for delta-connected VTs; or to the phase A current phasor when no voltage signals are present. Figure 6-2: An example of the Metering menu Figure 6-3: An example of the Metering\Summary submenu 6–2 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 559 EnerVista 8 Series program is shown as follows. Figure 6-4: Current Metering Screen (EnerVista 8 Series) The complete list of actual values available in the Metering menu is covered in the following sections. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 6–3...
Page 560: Metering Summary
SUMMARY CHAPTER 6: METERING Summary Path: Metering > Summary The Metering Summary menu consists of display screens, including a graphical presentation of key phasor quantities. 6–4 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 561: Motor
System/Motor/Setup). Motor load averaging filter is only applicable when Motor Load Filter Interval is set non-zero. Otherwise, this value is equal to the Motor Load. See figure “Motor Load Averaging Filter for VFD and Cyclic Load Motor Application“. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 6–5...
Page 562: Speed
The sample gathering and processing takes approximately 11 seconds in 60 Hz and 13 seconds in 50 Hz system, after all blocks are removed and all supervising conditions are satisfied. 6–6 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 563: Stator Inter-Turn Fault
All the dB values are averaged for each load bin value and stored as Avg. Energy at Peak Mag at k=1,2,3 in a file at the end of the baseline period. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 6–7...
Page 564 (for all k-factors) for a specific load bin. ESTIMATED SPEED The 869 relay estimates speed based on rated input power, rated speed and power input to the motor. This field displays estimated speed.
Page 565: Short Circuit
Range: 0.000 to 120000.000 A in steps of 0.001 SC RMS Ib Range: 0.000 to 120000.000 A in steps of 0.001 SC RMS Ic Range: 0.000 to 120000.000 A in steps of 0.001 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 6–9...
Page 566: Impedance
Phase A (Ia RMS) Range: 0.000 to 12000.000 A Phase B (Ib RMS) Range: 0.000 to 12000.000 A Phase C (Ic RMS) Range: 0.000 to 12000.000 A Ground (Ig RMS) Range: 0.000 to 12000.000 A 6–10 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 567 Load (I%) (Only for CT Bank 1-J1) Range: 0.0 to 100.0 % Sensitive Ground (Isg) Range: 0.000 to 1200.000 A Sensitive Ground (Isg RMS) Range: 0.000 to 1200.000 A Sensitive Ground Angle (Isg Angle) Range: 0.0 to 359.9° 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 6–11...
Page 568: Voltages
Range: 0.0 to 359.9° Phase C Angle (Vcn Angle) Range: 0.0 to 359.9° Phase to Phase AB Angle (Vab Angle) Range: 0.0 to 359.9° Phase to Phase BC Angle (Vbc Angle) Range: 0.0 to 359.9° 6–12 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 569: Frequency
Metering > Frequency 1 - J Frequency (Current Input J1-CT) Range: 2.000 to 90.000 Hz Frequency (Phase Voltage Input J2-3VT) Range: 2.000 to 90.000 Hz Frequency (Auxiliary Voltage Input J2-Vx) Range: 2.000 to 90.000 Hz 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 6–13...
Page 570: Harmonics 1(Harmonics 2)
Phase A Twenty Fifth Harmonic (Phase A 25) Range: 0.0 to 100.0 % Phase B Twenty Fifth Harmonic (Phase B 25) Range: 0.0 to 100.0 % Phase C Twenty Fifth Harmonic (Phase C 25) Range: 0.0 to 100.0 % 6–14 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 571: Harmonic Detection
Harmonic Detection element are the same for the general metering, so they are not shown here again. The harmonic ratios in the Harmonic Detection element are calculated and updated every protection pass. Path: Metering > Harmonic Detection 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 6–15...
Page 572: Power
Power 1 is calculated using 3-phase J1 Currents & 3-phase J2 Voltages. NOTE: Figure 6-6: Flow direction of signed values for watts and VARs Path: Metering > Power 1(X) Real Total (Real) Range: - 214748364.8 kW to 214748364.7 kW 6–16 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 573: Energy
Negative Watt Hours (Neg WattHours) Range: 0.0 MWh to 214748364.7 MWh Positive Var Hours (Pos VarHours) Range: 0.0 Mvarh to 214748364.7 Mvarh Negative Var Hours (Neg VarHours) Range: 0.0 Mvarh to 214748364.7 Mvarh 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 6–17...
Page 574: Power Factor
Date/Time Phase A Demand (J1 Date/Time Ph A Demand) MM/DD/YY HH:MM:SS Date/Time Phase B Demand (J1 Date/Time Ph B Demand) MM/DD/YY HH:MM:SS Date/Time Phase C Demand (J1 Date/Time Ph C Demand) MM/DD/YY HH:MM:SS 6–18 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 575: Power Demand
Default: 0.0 kW Directional Power 2 (Directional Power 2) Range: -214748364.8 kW to 214748364.7 kW Default: 0.0 kW Directional Power X (Directional Power X) Range: -214748364.8 kW to 214748364.7 kW Default: 0.0 kW 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 6–19...
Page 576: Arc Flash
This value shows the hottest RTD temperature from the group of RTDs when setpoint Application is programmed as Bearing. RTD 1(13) Range: -40 to 250°C (temperatures < -40°C are displayed as “Shorted” and temperatures > 250°C are displayed as “Open RTD”) 6–20 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 577: Rtd Maximums
FlexEI 1 Op Signal FlexEI 2 Op Signal FlexEI 3 Op Signal FlexEI 4 Op Signal FlexEI 5 Op Signal FlexEI 6 Op Signal FlexEI 7 Op Signal FlexEI 8 Op Signal 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 6–21...
Page 578 FLEXELEMENTS CHAPTER 6: METERING 6–22 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 579: Records Events
Records Events The 869 has an event recorder which runs continuously. All event records are stored in flash memory such that information is permanently retained. The events are displayed from newest to oldest event. Each event has a header message containing a summary of the event that occurred, and is assigned an event number equal to the number of events that have occurred since the recorder was cleared.
Page 580: Transient Records
Records > Data Logger Motor Start Records When a motor start status is detected by the 869 relay, a start data record is triggered and begins to sample and record the following parameters at a rate of 1 sample every 200ms: •...
Page 581: Motor Start Statistics
START PEAK CURRENT Range: 0.00 to 20.00 x FLA in steps of 0.01Default: 0.00 x FLA Up to five starts are reported. When the buffer is full the newest record overwrites the oldest one. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 7–3...
Page 582: Learned Data
CHAPTER 7: RECORDS Learned Data The 869 measures and records individual data records, as indicated below, all from actual motor operation. The latest individual data record "set" can be viewed using the Learned Data feature on the relay. The data, when input cumulatively to the Learned Data Recorder (see below) can be used to evaluate changes/trends over time.
Page 583 Capacity Used value plus suitable margin can be used to manually fine-tune the thermal start inhibit margin. See the Start Supervision section of the 869 Instruction manual,this manual, for a description of how the Learned Start Thermal Capacity Used is calculated.
Page 584 RTD temperature value. The RTD maximum temperature values are maintained in non-volatile memory to carry over a relay power interruption. RTD elements are configured accordingly. 7–6 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 585 CHAPTER 7: RECORDS LEARNED DATA Figure 7-1: Motor learned Data Functionality 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 7–7...
Page 586: Remote Modbus Device
FlexLogic name defined in the Generic Modbus Device Setpoint label field in the CID file. The value displayed is based on the Format Code field defined in the Generic Modbus Device Setpoint for a specific digital value in the CID file. 7–8 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 587 FlexAnalog name defined in the Generic Modbus Device Setpoint label field in the CID file. The value displayed is based on the Data Type and the Units field defined in the Generic Modbus Device Setpoint for a specific analog value in the CID file. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 7–9...
Page 588: Breakers
(the count units label also appears). Also included, is the date and time stamp for the frozen count. The Counter microseconds frozen value refers to the microsecond portion of the time stamp. Path: Records > Digital Counter 1 (16) 7–10 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 589: Remote Modbus Device
FlexLogic name defined in the Generic Modbus Device Setpoint label field in the CID file. The value displayed is based on the Format Code field defined in the Generic Modbus Device Setpoint for a specific digital value in the CID file. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 7–11...
Page 590 FlexAnalog name defined in the Generic Modbus Device Setpoint label field in the CID file. The value displayed is based on the Data Type and the Units field defined in the Generic Modbus Device Setpoint for a specific analog value in the CID file. 7–12 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 591: Clear Records
The Clear Records command is accessible from the front panel and from the EnerVista 8 Series Setup software. Clear records from here. Path: Records > Clear Records Records can be cleared either by assigning “On” to the appropriate setting or by assigning a FlexLogic operand. 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 7–13...
Page 592 CLEAR RECORDS CHAPTER 7: RECORDS 7–14 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 593: Environmental Health Report
Relay Firmware in Chapter 3, Interfaces > Software Interface > Upgrading Relay Firmware. Path: Maintenance > Environmental Awareness Health Report Over the life of the 869 product remedial action can be required. The 869 has a module which can record environmental data. Environmental Health Report Prolonged exposure to harsh environments and transient conditions that exceed those stated in Section 1 - Specifications reduce the life of electronic products.
Page 594 ENVIRONMENTAL HEALTH REPORT CHAPTER 8: MAINTENANCE Figure 8-1: Environmental Report 8–2 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 595: Motor Health Report
MOTOR HEALTH REPORT Motor Health Report The motor health reporting function is included with every 869 relay, providing critical information on the historical operating characteristics of the motor during motor starting and stopping operations during a programmable time period. The report can be generated as a PDF file using the EnerVista 8 Series Setup software.
Page 596 Neutral OV 1 OP Neg Seq OV 1 OP Underfreq 1 OP Underfreq 2 OP Underfreq 3 OP Underfreq 4 OP Overfreq 1 OP Overfreq 2 OP DirPwr 1 OP DirPwr 2 OP 8–4 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 597 BKR1 Hlth OP Fail BKR1 Arc Fail BKR1 Charge Fail Current Dmd PKP RealPwr Dmd PKP ReactvPwr Dmd PKP ApprntPwr Dmd PKP BF1 OP VT Fuse Fail 1 OP VT Fuse 1 V Loss 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 8–5...
Page 598: General Maintenance
General Maintenance The 869 requires minimal maintenance. As a microprocessor-based relay, its characteristics do not change over time. The expected service life of a 869 is 20 years when the environment and electrical conditions are within stated specifications. While the 869 performs continual self-tests, it is recommended that maintenance be scheduled with other system maintenance.
Page 599: Application Notes
In some cases, the fault current can exceed the current which the contactor is rated to interrupt. If such a condition has been detected, the 869 blocks the operation of the output relay 1 “Trip” and operates a selected auxiliary output relay. The same auxiliary output relay has to be wired to the upstream switching device (usually a breaker) that is rated to interrupt the fault current.
Page 600 CHAPTER A: APPENDIX A 2. FlexLogic equation Example build of a FlexLogic Equation The above build represented graphically 3. Output relays configuration The output relay settings can be changed via the EnerVista 8 PC program. A–2 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 601: Warranty
Appendix B includes the warranty and revision history. Warranty For products shipped as of 1 October 2013, GE Grid Solutions warrants most of its GE manufactured products for 10 years. For warranty details including any limitations and disclaimers, see the GE Grid Solutions Terms and Conditions at https:// www.gegridsolutions.com/multilin/warranty.htm...
Page 602: Major Updates
Added new Local Control Mode section, see Setpoints > Control Added new Breaker Control section, see Setpoints > Control Added new Switch Control (for disconnect switch control) section to Setpoints > Control > Switch Control B–2 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...
Page 603 Revised Power Factor feature for lead/lag in 4-283 Setpoints>Monitoring>Functions Added new Volts per Hertz section to 4-236 Setpoints>Protection>Voltage Elements Added the "Max. Acceleration Time" and "Speed2 Max. Accel. 4-65 Time" settings to the System>Motor>Setup section 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL B–3...
Page 604 Manual revision number from A5 to A6, and Product version cover cover revision from 1.5x to 1.6x cover cover Replaced GE Digital Energy with GE Grid Solutions throughout Added Harmonic detection specification to 1-18 1-17 Specifications>Monitoring Revised the typical wiring diagram to 892824A3.cdr (renamed...
Page 605 Manual revision number from A4 to A5, and Product version revision from 1.4x to 1.5x Updated 869 order codes, see slots B, C, G and H Added Arc Flash specifications to Specifications>Protection 1- 22, 1-23 Added Analog Inputs and Analog Outputs to Specifications>...
Page 606 Chapter 5, 6, 7 descriptions Revised Event Classification Rules figure, some images, and Chapter 8 settings descriptions Appendix A added application note Appendix B added change notes and warranty description General Minor Corrections B–6 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL...

GE 869 Instruction Manual

Metering

Environmental Health Report

Application Notes

Warranty

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Summary of Contents for GE 869