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1MRK 505 378-UEN Rev. K
11.6.6.2
Completing the test
Continue to test another function or end the test by changing the TESTMODE setting to Off. Restore
connections and settings to the original values, if changed for testing purposes.
11.6.7
Radial feeder protection PAPGAPC
The Signal Monitoring tool in PCM600 shows the service values that are available on the Local HMI
as well.
11.6.7.1
Verifying the settings
Values of the logical signals for PAPGAPC are available on the local HMI under: Main menu /Tests /
Function status /Voltage protection /RadialFeeder(27, U<) /PAPGAPC(27, U<):1
Test for fast fault clearing
•
Connect the test set for the injection of three phase voltages and currents to the appropriate
terminals of the IED.
•
Enable the fast fault clearance by setting FastOperation to TRUE, and also connect the inputs
BLKDLFLT to TRUE and FUSEFAIL to FALSE.
•
Also assume circuit breaker is in closed position, that is CBCLOSED is high, prior to fault
occurrence.
•
Create a single phase fault on phase L1 such that phase L1 voltage is lower than UPhSel<
times quadrature phase to phase voltage and set Tau to default value.
•
Activate carrier receive CR signal.
•
Check that TRIP, TRL1, ARST and ARSTL1 are generated with the conditions described.
•
Check that activated trip signals and start signals are blocked by enabling BLKTR and BLKST.
•
Check that all activated signals are disabled by BLOCK input.
•
If required, perform creating faults on the remaining phases in the similar way.
Test of delayed fault clearing for single pole tripping
•
Connect the test set for the injection of three phase voltages and currents to the appropriate
terminals of the IED.
•
Enable the delayed fault clearance for single pole tripping by setting Del1phOp to 1Ph (On),
Del3PhOp to FALSE (Off) and also connect the inputs BLKDLFLT and FUSEFAIL to FALSE.
•
Also assume circuit breaker is in closed position, that is input CBCLD is high, prior to fault
occurrence.
•
Create a single phase fault on phase L1 such that phase L1 voltage is lower than UPhSel<
times quadrature phase to phase voltage and set Tau to default value and also inject the
residual current such that it exceeds set IN> value.
•
Check that output TRIN is activated after a set delay of tResCurr if ResCurrOper is set to high.
•
Check that TRIP and TRL1 are generated with the conditions described after a set delay time of
t1Ph and the outputs ARST and ARSTL1 are also activated. .
•
Check that activated trip signals and start signals are blocked by enabling BLKTR and BLKST.
•
Check that all activated signals are disabled by BLOCK input.
•
If required, perform creating faults on the remaining phases in the similar way.
Test of delayed fault clearing for three pole tripping
•
Connect the test set for the injection of three phase voltages and currents to the appropriate
terminals of the IED.
•
Enable the delayed fault clearance for three pole tripping by setting Del3phOp to TRUE (On),
Del1PhOp to 3Ph (Off) and also connect the inputs BLKDLFLT and FUSEFAIL to FALSE.
•
Also assume circuit breaker is in closed position, that is, the input CBCLOSED is high prior to fault
occurrence.
Line differential protection RED670
Commissioning manual
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Section 11
Testing functionality by secondary injection
SEMOD175023-47 v4
GUID-1A9BA2F9-7AFB-4C27-B851-55E0E9DC4D03 v1
GUID-302BE312-2BF8-48C9-9914-A96F16984980 v1
191
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