Completing The Test; Overfrequency Protection Saptof; Verifying The Settings - ABB REL650 Commissioning Manual
Relion 650 series, line distance protection
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Also See for REL650:
- Technical manual (942 pages) ,
- Applications manual (516 pages) ,
- Product manual (118 pages)
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Section 9
Testing functionality by secondary injection
9.6.1.2
9.6.2
9.6.2.1
128
Completing the test
Continue to test another function or end the test by changing the TESTMODE
setting to Off. Restore connections and settings to their original values, if they were
changed for testing purposes.
Overfrequency protection SAPTOF
Prepare the IED for verification of settings outlined in Section
to verify
settings".
Verifying the settings
Verification of START value and time delay to operate
1.
Check that the IED settings are appropriate, for example the start value and
the time delay.
2.
Supply the IED with three-phase voltages at their rated values and initial
frequency.
3.
Slowly increase the frequency of the applied voltage with a 40 mHz step,
applying it for a period that is 10% longer than tDelay.
4.
Note the operate value and compare it with the set value.
5.
Decrease the frequency to rated operating conditions.
6.
Check that the START signal resets.
7.
Set the frequency to 20 mHz under the operate value.
8.
Increase the frequency with a 40 mHz step, applying it for a period that is
10% longer than tDelay.
9.
Measure the time delay for the TRIP signal, and compare it with the set value.
Note that the measured time consists of the set value for time delay plus
minimum operate time of the start function (80 - 90 ms).
Extended testing
1.
The test above can be repeated to check the time to reset.
Verification of the low voltage magnitude blocking
1.
Check that the settings in the IED are appropriate, for example the
StartFrequency and the tDelay.
2.
Supply the IED with three-phase voltages at their rated values.
3.
Slowly decrease the magnitude of the applied voltage, until the BLKDMAGN
signal appears.
4.
Note the voltage magnitude value and compare it with the set value.
1MRK 506 383-UEN A
"Preparing the IED
Line distance protection REL650 2.2 IEC
Commissioning manual
M16289-57 v5
M16290-2 v7
M16290-12 v2
M16290-14 v6
M16290-28 v4
M16290-34 v6
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