Completing The Test; Unbalance Protection; Shunt Capacitor Cascading Failure Protection Sccfpvoc (51 V); Function Revision History - ABB Relion 670 Series Commissioning Manual

Section 11
Testing functionality by secondary injection
9. Simultaneously disconnect all the three-phase voltages from the IED.
No TRIP signal should appear.
10. Reset the BLKU binary input.
11. Inject the measured voltages at rated values for at least set tRestore time.
12. Activate the BLOCK binary input.
13. Simultaneously disconnect all the three-phase voltages from the IED.
No TRIP signal should appear.
14. Reset the BLOCK binary input.
11.5.5.2

Completing the test

Continue to test another function or end the test by changing the TESTMODE setting to Disabled.
Restore connections and settings to the original values, if changed for testing purposes.
11.6

Unbalance protection

11.6.1

Shunt capacitor cascading failure protection SCCFPVOC (51 V)

Prepare the IED for verification of settings outlined in Section
11.6.1.1

Function revision history

Document
revision
D
E
F
G
H
J
K
11.6.1.2

Verifying the signals and settings

A shunt capacitor cascading failure protection SCCFPVOC (51 V) function has the following modes of
operation:
• Two step negative sequence voltage restrained over-current protection
• Two step zero sequence voltage restrained over-current protection
Verification of negative sequence-based operation
1. Set the following parameters:
•
•
•
136
Product History
revision
2.2.3 -
2.2.3 -
2.2.4 -
2.2.4 -
2.2.4 -
2.2.4 -
2.2.5 The harmonic restraint function changed to freeze the definite timers.
Operation = Enable
Operation1 = Enable (Step 1)
CurrentInput = negSeq
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1MRK 511 403-UUS Rev. K
GUID-5E075378-BE05-4C5F-AD92-568C2D84CCF1 v1
GUID-08928884-88E3-4A40-9B50-BDA5F1A451D9 v1
GUID-079BCF22-469C-42EA-B857-E28154EC13D9 v1
"Preparing the IED to verify
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GUID-E395E984-9995-4CE4-A13B-035F77BC035E v1
GUID-4F1928D9-59DE-4422-8930-1FF332D2F5BE v1
Commissioning manual
SEMOD175023-47 v4
settings".
Bay control REC670