ABB RELION 670 Series Commissioning Manual page 187

1MRK 505 345-UEN B
1. Check that the autorecloser function SMBRREC is operative, for example, by making a
reclosing shot without the INHIBIT signal.
2. Apply a fault and thereby a START signal. At the same time, or during the open time,
apply a signal to the input INHIBIT.
3. Check that the reclosing sequence is interrupted and no reclosing takes place.
Check closing onto a fault
1. Check that the autorecloser function SMBRREC is operative, for example by making a
reclosing shot.
Keep the CBREADY signal high.
2. Set the breaker simulating relay BR in Open position.
3. Close the BR relay and apply immediately a fault and thereby a START signal.
4. Check that no reclosing takes place.
Checking the influence of CB not ready for reclosing
1. Check that the autorecloser function SMBRREC is operative, for example by making a
reclosing shot.
Keep the CB simulator BR closed. Remove the CBREADY signal by opening SRY.
2. Apply a fault and thereby a START signal.
3. Check that no reclosing takes place.
Checking the influence of synchronizing check (at three-phase reclosing)
1. Check that the autorecloser function SMBRREC is operative, for example, by making a
three-phase reclosing shot with the SESRSYN synchronizing check condition.
Set the SESRSYN function to
2. Apply a fault causing three-phase trip and thereby a START and a TR3P signal.
3. Wait for the
Check that no reclosing is made.
Checking the response when autoreclosing is
Procedure
1. Check that the autorecloser function SMBRREC is operative, for example by making a
reclosing shot.
Set the autoreclosing operation to
The output READY shall be low, and PREP3P shall be high.
2. Apply a single phase fault and thereby a START signal.
3. Check that a definitive three phase trip and no reclosing takes place.
Testing autoreclosing in a multi-breaker arrangement
The usual arrangement is to have an autorecloser function SMBRREC per circuit-breaker. They
can be in different CB related IEDs or in a common IED.
• A master SMBRREC function is set with
• A slave SMBRREC function is set with
The two functions can be checked individually by carefully applying START, WAIT, and INHIBIT
signals.
Commissioning manual
Off to eliminate the signal connected to input signal SYNC.
tSync time-out limit.
See the application manual for an illustration of typical interconnections.
Testing functionality by secondary injection
Off
Off , for example by external control.
Priority = High .
Priority = Low .
Section 10
M12400-137 v4
M12400-149 v4
M12400-161 v9
M12400-173 v6
M12400-185 v6
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