Keep the CB simulator BR closed. Remove the CBREADY signal by opening SRY.
2.
Apply a fault and thereby a PICKUP signal.
3.
Check that no reclosing takes place.
6.7.3.8
Checking the influence of synchronism check (at three-pole reclosing)
1.
Check that the auto-reclosing function is operative, for example, by making a three-
phase reclosing shot with the synchronism check condition.
Remove the SYNC signal.
2.
Apply a fault causing three-phase trip and thereby a PICKUP and a TR3P signal.
3.
Wait for the
tSync
time out limit.
Check that no reclosing is made.
6.7.3.9
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 in the HMI under
Main menu/Clear/Clear counters/STBRREC (79, 0-
>1)
2.
Restore settings that may have been modified for the tests back to normal.
3.
Disconnect the test switch, CB 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 must be done via PCM600 using the Disturbance
Handling tool.
6.7.3.10
Completing the test
Continue to test another function or end the testing by setting the parameter
TestMode
to
Disabled
under
Main menu/Tests/IED test mode/TESTMODE:1
. If another function is
tested, then set the parameter
Blocked
to
No
under
Main menu/Tests/Function test
modes/Control/STBRREC(79,0->1)/STBRREC:1
for the function, or for each
individual function in a chain, to be tested next. Remember to set the parameter
Blocked
to
Yes
, for each individual function that has been tested.
6.7.4
Interlocking
Prepare the IED for verification of settings as outlined in
5.1 "Preparing the IED to verify
1MRK 505 293-UUS A
Section 6
Testing functionality
111
Commissioning manual
