Verifying The Re-Trip Mode - ABB REB670 Commissioning Manual

Section 10
Testing functionality by secondary injection
10.4.7.3
102
1. Apply the fault condition, including START of CCSRBRF, well above the set
current value. Measure time from "Start of CCSRBRF".
2. Check the re-trip t1 and back-up trip times t2 and t3
3. Disconnect AC and start input signals.

Verifying the re-trip mode

Choose the mode below, which corresponds to the actual case. In the cases below it
is assumed that FunctionMode = Current is selected.
Checking the case without re-trip,
Procedure
1. Set RetripMode = Retrip Off.
2. Apply the fault condition, including START of CCSRBRF, well above the set
current value.
3. Verify that no re-trip, but back-up trip is achieved after set time.
4. Disconnect AC and start input signals.
Checking the re-trip with current check,
Procedure
1. Set RetripMode = CB Pos Check .
2. Apply the fault condition, including START of CCSRBRF, well above the set
current value.
3. Verify that retrip is achieved after set time t1 and back-up trip after time t2
4. Apply the fault condition, including START of CCSRBRF, with current
below set current value.
5. Verify that no re-trip, and no back-up trip is obtained.
6. Disconnect AC and start input signals.
Checking re-trip without current check,
Check
Procedure
1. Set RetripMode = No CBPos Check.
2. Apply the fault condition, including START of CCSRBRF, well above the set
current value.
3. Verify that re-trip is achieved after set time t1, and back-up trip after time t2.
4. Apply the fault condition, including START of CCSRBRF, with current
below set current value.
5. Verify that re-trip is achieved after set timet1, but no back-up trip is obtained.
6. Disconnect AC and start input signals.
RetripMode = Retrip Off
RetripMode = CB Pos Check
RetripMode = No CBPos
Busbar protection REB670 2.2 IEC
1MRK 505 372-UEN A
SEMOD128582-67 v2
SEMOD128582-71 v5
SEMOD128582-83 v4
SEMOD128582-99 v5
Commissioning manual