11.12 DIRECTIONAL ELEMENTS (67P, 67N, 67G, 67SG)
Activate only protection elements 50SG and 67SG and set the relay as follows:
67SG SETTINGS
Function
MTA
Direction
Polarization
Block Logic
Pol V Threshold
Configure one of the outputs to be activated only by unit 50SG.
Apply the following tests:
ELEMENTS
50SG/67SG
11
11-16
ENABLED
-45 Deg
FORWARD
VO
PERMISSION
10 V
PHASE UNDER TEST
POLARIZATION PHASE
CHANNE
MAGNITUDE
CHANNEL
L
MOD
ARG
ISG
2 A
0º
VI
VII
VIII
W650 Wind Generator Protection System
50SG SETTINGS
Function
Input
Pickup Level
Trip Delay
Reset Delay
ELEMENT TRIP
MAGNITUDE
MOD
ARG
60 V
0º
NO
60 V
180º
YES
0 V
0º
0 V
0º
11 COMMISSIONING
11.12.4 67SG ELEMENT
ENABLED
PHASOR (DFT)
0.50 A
0.30
0.00
GEK-113032A