Completing The Test; Breaker Failure Protection, Phase Segregated Activation And Output Ccrbrf; Checking The Phase Current Operate Value, Ip; Checking The Residual (Earth Fault) Current Operate Value In> Set Below Ip - ABB Relion 670 Series Commissioning Manual

1MRK 504 165-UEN E
Wait 5 minutes to empty the thermal memory and set Time Constant 2 (
accordance with the setting plan.
15. Test with injection current 1.50 ·
tripping and the lockout reset in the same way as described for stage
16. Finally check that start and trip information is stored in the event menu.
11.5.8.2

Completing the test

continue to test another function or end the test by changing the
Restore connections and settings to their original values, if they were changed for testing
purposes.
11.5.9 Breaker failure protection, phase segregated activation and
output CCRBRF
Prepare the IED for verification of settings outlined in Section
settings".
The Breaker failure protection, 3-phase activation and output function CCRBRF should
normally be tested in conjunction with some other function that provides a start signal. An
external START signal can also be used.
To verify the settings in the most common back-up trip mode
phase-to-earth faults.
At mode
where the return current is connected to the summated current input. The value of residual
(earth fault) current IN set lower than
11.5.9.1 Checking the phase current operate value,
BuTripMode = 1 out of 3 or 2 out of 4 .
1. Apply the fault condition, including START of CCRBRF, with a current below the set
2. Repeat the fault condition and increase the current in steps until a trip occurs. Note that
the START signal shall be re-applied for each new current value.
3. Compare the result with the set
11.5.9.2 Checking the residual (earth fault) current operate value
IP>
Check the low set
1 out of 4
=
1. Apply the fault condition, including START of CCRBRF, with a current just below set
2. Repeat the fault condition and increase the current in steps until trip appears. Note that
the START signal shall be re-applied for each new current value.
3. Compare the result with the set
4. Disconnect AC and START input signals.
Transformer protection RET670
Commissioning manual
2 out of 4 the phase current setting, IP> can be checked by single-phase injection
RetripMode = Off and FunctionMode = Current is set, only backup trip can be
If
used to check set
IN> current where setting FunctionMode = Current and setting BuTripMode
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IBase2 the thermal alarm level, the operate time for
IN> is easiest checked in back-up trip mode 1 out of 4 .
IP>
IP> .
IP> .
IN> .
Testing functionality by secondary injection
Tau2 ) in
IBase1 .
TESTMODE setting to Off .
"Preparing the IED to verify
1 out of 3 , it is sufficient to test
IN> set below
Section 11
SEMOD53632-51 v5
M12104-2 v13
M12104-23 v14
IP> .
M12104-80 v10
IN> .
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