No TRIP signal should appear.
10. Switch of
f the fault current.
11. Reset the RELEASE binary input.
12. Switch the fault current on.
No TRIP signal should appear.
13. Switch the fault current off.
11.5.8.2 Completing the test
M14922-50 v4
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.
11.5.9 Pole discordance protection CCPDSC
SEMOD55625-59 v6
Prepare the IED for verification of settings outlined in Section
"Preparing the IED
to verify settings".
11.5.9.1 Verifying the settings
SEMOD55625-63 v8
1.
External detection logic, Contact function selection = ContSel setting equals
CCPDSC signal from CB. Activate the EXTPDIND binary input, and
measure the operating time of CCPDSC.
Use the TRIP signal from the configured binary output to stop the timer.
2. Compare the measured time with the set value tTrip.
3. Reset the EXTPDIND input.
4. Activate the BLKDBYAR binary input.
This test should be performed together with Autorecloser SMBRREC.
5. Activate the EXTPDIND binary input.
No TRIP signal should appear.
6. Reset both BLKDBYAR and EXTPDIND binary inputs.
7. Activate the BLOCK binary input.
8. Activate EXTPDIND binary input.
NO TRIP signal should appear.
9. Reset both BLOCK and EXTPDIND binary inputs.
10. If Internal detection logic Contact function selection = ContSel setting equals
Pole position from auxiliary contacts. Then set inputs
POLE1OPN...POLE3CL in a status that activates the pole discordance logic
and repeats step 2 to step
6.
11.
Unsymmetrical current detection with CB monitoring: Set measured current
in one phase to 110% of current release level. Activate CLOSECMD and
measure the operating time of the CCPDSC protection.
Use the TRIP signal from the configured binary output to stop the timer.
12. Deactivate the CLOSECMD: Set measured current in one phase to 90% of
Current Release level. Activate CLOSECMD.
NO TRIP signal should appear.
Section 11 1MRK 505 378-UEN A
Testing functionality by secondary injection
188 Line differential protection RED670 2.2 IEC
Commissioning manual
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