ABB Relion 670 Series Commissioning Manual page 159

1MRK 511 403-UEN E
1. Check that the auto recloser is operative, for example, by making a reclosing shot
without the
2. Apply a fault and thereby a
apply a signal to the input
3. Check that the auto reclosing sequence is interrupted and no auto reclosing takes place.
Check closing onto a fault
1. Check that the auto recloser is operative, for example by making a reclosing shot.
Keep the
2. Set the breaker simulating relay BR in Open position.
3. Close the BR relay and immediately apply a fault and thereby a START signal.
4. Check that no auto reclosing takes place.
Checking the influence of circuit breaker not ready for reclosing
1. Check that the auto recloser function is operative, for example by making an auto
reclosing shot.
Keep the CB simulator BR closed. Remove the
2. Apply a fault and thereby a START signal.
3. Check that no auto reclosing takes place.
Checking the influence of synchrocheck (at three-phase reclosing)
1. Check that the auto recloser is operative, for example, by making a three-phase reclosing
shot with the synchrocheck SESRSYN conditions fullfilled.
Set the SESRSYN function to
2. Apply a fault causing three-phase trip and thereby a
recloser.
3. Wait for the
Check that no reclosing is made.
Checking the response when auto recloser is
Procedure
1. Check that the auto recloser is operative, for example by making a reclosing shot.
Set the autoreclosing operation to
The output
2. Apply a single phase fault and thereby a
3. Check that a definitive three phase trip and no auto reclosing takes place.
Testing auto reclosing in a multi-breaker arrangement
The usual arrangement is to have an auto recloser per circuit-breaker. They can be in different
circuit breaker related IEDs or in a common IED.
• A master auto recloser is set with
• A slave auto recloser is set with
The two auto reclosers can be checked individually by carefully applying
INHIBIT signals.
Bay control REC670
Commissioning manual
INHIBIT signal.
START signal. At the same time, or during the dead time,
INHIBIT .
CBREADY signal high.
Off to eliminate the signal connected to input signal SYNC.
tSync time-out limit.
READY shall be low, and PREP3P shall be high.
Priority = Low .
See the application manual for an illustration of typical interconnections.
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CBREADY signal by opening SRY.
START and a TR3P signal to the auto
Off
Off , for example by external control.
START signal.
Priority = High .
Testing functionality by secondary injection
START , WAIT , and
Section 11
M12400-137 v5
M12400-149 v5
M12400-161 v10
M12400-173 v7
M12400-185 v7
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