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1MRK 506 377-UEN Rev. L
Checking the influence of the INHIBIT signal
1.
Check that the auto recloser 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 dead time, apply a
signal to the input INHIBIT.
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 CBREADY signal high.
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 CBREADY signal by opening SRY.
2.
Apply a fault and thereby a START signal.
3.
Check that no auto reclosing takes place.
Checking the influence of synchrocheck
1.
Check that the auto recloser function SMBRREC is operative, for example, by making a
reclosing shot with the SESRSYN synchrocheck conditions fullfilled.
Set the SESRSYN function to Off to eliminate the signal connected to input signal SYNC.
2.
Apply a fault causing a trip and, thereby, a START signal to the auto recloser.
3.
Wait for the tSync time-out limit.
Check that no reclosing is made.
Restoring equipment
After the tests, restore the equipment to normal or desired state. Check the following items in
particular:
1.
Check the operation counters.
Reset the counters to zero, if that is the user's preference. The counter reset function is found
on the local HMI under Main menu /Reset /Reset counters /AutoRecloser79,5(0–>1) /
SMBRREC(79,5(0–>1)):x
2.
Restore settings that may have been modified for the tests back to normal.
3.
Disconnect the test switch, circuit breaker simulating arrangement and test circuits.
Reconnect any links or connection terminals, which may have been opened for the tests.
4.
Reset indications, alarms and disturbance recordings.
Clearing of the disturbance report can be done via the Disturbance Handling in PCM600 or the
local HMI.
10.9.2.5
Completing the test
Continue to test another function or end the test by changing the TESTMODE setting to Off. Restore
connections and settings to the original values, if changed for testing purposes.
Railway application RER670
Commissioning manual
© 2017 - 2022 Hitachi Energy. All rights reserved
Section 10
Testing functionality by secondary injection
M12400-161 v10
M12400-129 v5
M12400-137 v5
M12400-149 v5
M12400-190 v6
M12400-218 v5
129
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