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
M12400-149 v5
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
M12400-161 v10
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
M12400-190 v6
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.
Section 10 1MRK 506 377-UEN C
Testing functionality by secondary injection
140 Railway application RER670 2.2 IEC
Commissioning manual
To Next Page
Loading...
