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1MRK 506 355-UEN A
10.5.10.2
10.5.11
Line distance protection REL670 2.1 IEC
Commissioning manual
Testing functionality by secondary injection
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.
13. Repeat the previous two steps using OPENCMD instead of CLOSECMD.
Asymmetry current detection with CB monitoring: Set all three currents to 110%
of Current Release level. Activate CLOSECMD.
NO TRIP signal should appear due to symmetrical condition.
14. Deactivate the CLOSECMD. Decrease one current with 120% of the current
unsymmetrical level compared to the other two phases. Activate CLOSECMD
and measure the operating time of the CCPDSC protection.
Use the TRIP signal from the configured binary output to stop the timer.
15. Deactivate the CLOSECMD. Decrease one current with 80% of the current
unsymmetrical level compared to the other two phases. Activate CLOSECMD.
NO TRIP signal should appear.
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.
Directional underpower protection GUPPDUP
Prepare the IED for verification of settings outlined in section
verify
settings".
Section 10
"Preparing the IED to
163
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