Completing The Test; Breaker Failure Protection, Phase Segregated Activation And Output Ccrbrf (50Bf) - ABB REQ650 Commissioning Manual

1MRK 505 293-UUS A
6.3.8.2
6.3.9
Commissioning manual
Monitor the signal ALARM until it appears on the corresponding binary output or on
the local HMI.
5. Compare the measured temperature with the setting.
6. Measure the LFPTTR/LCPTTR (26)protection trip time.
Use the TRIP signal from the configured binary output to stop the timer.
7. Take the TEMP readings.
Compare with the setting of TripTemp.
8. Activate the BLOCK binary input.
The signals ALARM, RI and TRIP should disappear.
9. Reset the BLOCK binary input.
10. Check the reset limit (TdReset).
Monitor the signal PICKUP until it disappears on the corresponding binary output or
on the local HMI, take the TEMP readings and compare with the setting of
ReclTemp.
11. Compare the measured trip time with the setting according to the formula.
12. Reset the thermal memory.
13. Continue to test another function or end the test by changing the test mode setting to
Disabled.

Completing the test

Continue to test another function or end the testing by setting the parameter TestMode to
Disabled under Main menu/Tests/IED test mode/TESTMODE:1. If another function is
tested, then set the parameter Blocked to No under Main menu/Tests/Function test
modes/Current/LFPTTR(26,T>)/LFPTTR:1, Main menu/Tests/Function test
modes/Current/LCPTTR(26,T>)/LCPTTR:1 for the function, or for each individual
function in a chain, to be tested next. Remember to set the parameter Blocked to Yes, for
each individual function that has been tested.
Breaker failure protection, phase segregated activation and
output CCRBRF (50BF)
Prepare the IED for verification of settings as outlined in
settings".
Values of the logical signals for CCRBRF (50BF) are available on the local HMI under
Main menu/Tests/Function status/Current/CCRBRF(50BF)/CCRBRF:1. The
Signal Monitoring in PCM600 shows the same signals that are available on the local HMI.
The Breaker failure protection, 3-phase activation and output function CCRBRF (50BF)
should normally be tested in conjunction with some other function that provides an initiate
signal. An external INITIATE signal can also be used.
Section 6
Testing functionality
5.1 "Preparing the IED to verify
59