Completing The Test; Breaker Failure Protection, Phase Segregated Activation And Output Ccrbrf - ABB REG650 Commissioning Manual

Section 6
Testing functionality
6.5.4.2
6.5.5
68
11. Switch on the injection current and check that ALARM1 and ALARM2 contacts
operate at the set percentage level and that the operate time for tripping is in
accordance with the set Time Constant 1 (Tau1).
With setting Itr = 101%IBase1 and injection current 1.50 · IBase1, the trip time
from zero content in the memory shall be 0.60 · Time Constant 1 (Tau1).
12. Check that all trip and alarm contacts operate according to the configuration
logic.
13. Switch off the injection current and check from the service menu readings of
thermal status and LOCKOUT that the lockout resets at the set percentage of
heat content.
14. Activate the cooling input signal to switch over to base current IBase2.
Wait 5 minutes to empty the thermal memory and set Time Constant 2 (Tau2) in
accordance with the setting plan.
15. Test with injection current 1.50 · IBase2 the thermal alarm level, the operate
time for tripping and the lockout reset in the same way as described for stage
IBase1.
16. Finally check that start and trip information is stored in the event menu.

Completing the test

Continue to test another function or end the testing by setting the parameter TestMode
to Off 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/TRPTTR(49,T>)/TRPTTR:X 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
Prepare the IED for verification of settings as outlined in
verify settings".
Values of the logical signals for CCRBRF 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
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 1 out of 3, it is sufficient
to test phase-to-earth faults.
At mode 2 out of 4 the phase current setting, IP> can be checked by single-phase
injection where the return current is connected to the summated current input. The
value of residual (earth fault) current IN set lower than IP> is easiest checked in back-
up trip mode 1 out of 4.
1MRK 502 049-UEN A
5.1 "Preparing the IED to
Commissioning manual