Checking The Phase Current Operate Value Ip; Checking The Re-Trip And Back-Up Times; Verifying The Re-Trip Mode - ABB RELION REG670 Commissioning Manual

1MRK 502 067-UEN B
Checking the phase current operate value IP>
12.5.10.1
Procedure
1. Apply the fault condition, including START of CCSRBRF, with a current below set
2. Repeat the fault condition and increase the current in steps until a trip occurs.
3. Compare the result with the set
4. Disconnect the AC and start input signals.
12.5.10.2

Checking the re-trip and back-up times

The check of the set times can be made in connection with the check of operate values above.
Choose the applicable function and trip mode, such as
CB Pos Check .
Procedure
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
3. Disconnect AC and start input signals.
12.5.10.3

Verifying the re-trip mode

Choose the mode below, which corresponds to the actual case. In the cases below it is
assumed that
Checking the case without re-trip,
Procedure
1. Set
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
2. Apply the fault condition, including START of CCSRBRF, well above the set current value.
3. Verify that retrip is achieved after set time
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,
Procedure
Commissioning manual
No CBPos Check " or " Retrip off " is set, only back-up trip can be
Note! If "
used to check set
t1 and back-up trip times t2 and t3
FunctionMode = Current is selected.
RetripMode = Retrip Off .
RetripMode = CB Pos Check .
IP> .
IP> .
FunctMode = Current and RetripMode =
RetripMode = Retrip Off
RetripMode = CB Pos Check
t1 and back-up trip after time t2
RetripMode = No CBPos Check
Testing functionality by secondary injection
IP> .
Section 12
SEMOD128582-25 v6
SEMOD128582-54 v5
SEMOD128582-67 v2
SEMOD128582-71 v5
SEMOD128582-83 v4
SEMOD128582-99 v5
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