ABB RELION 650 SERIES, Руководство по вводу в эксплуатацию

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6. Apply the fault and the start again. The value of current should be below the set value
I>BlkCont.
7. Arrange disconnection of CB closed signal(s) well before set back-up trip time
t2. It
simulates a correct CB tripping.
8. Verify that back-up trip is not achieved. Re-trip can appear for example, due to selection
“Re-trip without current check”.
9.3.7.9 Completing the test
M12104-72 v5
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.
9.3.8 Stub protection STBPTOC
M14922-2 v8
Prepare the IED for verification of settings outlined in Section "Preparing the IED to verify
settings" .
Logical signals for STBPTOC protection are available on the local HMI underMain menu/
Settings/IED Settings/Current protection/Stub(PTOC,50STB)/STBPTOC:x
9.3.8.1 Measuring the operate limit of set values
M14922-6 v8
1. Check that the input logical signals BLOCK and RELEASE and the output logical signal
TRIP are all logical zero.
2. Activate the input RELEASE on the STBPTOC function block
3. For a short while inject a current (fault current) in one phase to about 110% of the set
operating current, and switch the current off.
Observe to not exceed the maximum permitted overloading of the current circuits in the
IED.
4. Switch the fault current on and measure the operating time of STBPTOC.
Use the TRIP signal from the configured binary output to stop the timer. The operation
should be instantaneously.
5. Activate the input BLOCK on the STBPTOC function block.
6. Switch on the fault current (110% of the setting).
No TRIP signal should appear.
7. Switch off the fault current.
8. For a short while inject a current (fault current) in same phase to about 90% of the set
operating current, and switch the current off.
9. Switch the fault current on.
No TRIP signal should appear.
10. Switch off 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.
9.3.8.2 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.
Section 9 1MRK 505 385-UEN C
Testing functionality by secondary injection
70 Breaker protection REQ650
Commissioning manual
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