ABB REC 561 - Check that the Back-Up Trip Function Works; Terminate the Test and Restore the Equipment to Normal State

ABB Network Partner AB
Breaker-failure protection
Version 1.0-00
1MRK 580 171-XEN
Page 5 - 92
5.5 Check that the back-up
trip function works
5.1 Set RetripType = Retrip Off, t2 = 200 ms and I> = 100% I
r
.
5.2 Apply a stationary three-phase current over the set value.
5.3 Apply a start pulse to BFP--STL1.
5.4 Verify that back-up trip is achieved.
5.6 Terminate the test and
restore the equipment
to normal state
After the tests, restore the equipment to the normal or desired alternatives
and settings!
Check especially that the:
• Setting parameters reset as required and that a verification test is
made.
• Test switches or disconnected links of the connection terminals.
• Normal indications. (If preferred, the disturbance report can be
cleared.)