4.
Simulate CBREADY by closing the switch SRY, and leave it closed.
5.
Inject AC quantities to give a trip to the BR and to the START input.
Observe and preferably record the operation. The BR relay shall trip and
reclose (start). After reclosing, the SRY switch can be opened for about 5s
and then closed again.
The auto reclosing open time and the sequence should be checked, for
example in the event recording. Check also the operation indications
(disturbance report) and the operation counters on the local HMI under
Main
menu/Test/Function status/Control/AutoRecloser79,5(0–>1)/
SMBRREC(79,5(0–>)):x
Should the operation not be as expected, this should be investigated. It could
be caused by an inappropriate setting or missing condition such as
CBREADY
.
6.
Repeat the sequence by simulating a permanent fault.
Shortly after the reclosing shot, a new fault is applied. There shall be one
reclosing operation and then blocking of the auto recloser for the set reclaim
time.
Before a new reclosing sequence can be run, the
CBREADY
and
CBCLOSED
must be set manually.
7.
Repeat the sequence by simulating transient and permanent faults, and other
applicable cases, such as signal to
STARTHS
and high-speed auto reclosing.
10.9.2.4
Checking the auto reclosing conditions
M12400-123 v5
When checking the influence of a releasing condition it is suggested to first run an
auto reclosing sequence with the condition fulfilled. When the condition signal is
removed, and a new sequence is run, it indicates that the result was due to the
changed condition. In case of a blocking signal the procedure should be similar.
Start without the blocking or inhibit signal, and then run a sequence with the
blocking or inhibit signal added.
Checking the influence of the INHIBIT signal
M12400-129 v5
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
M12400-137 v5
1.
Check that the auto recloser is operative, for example by making a reclosing
shot.
1MRK 506 377-UEN C
Section 10
Testing functionality by secondary injection
Railway application RER670 2.2 IEC
139
Commissioning manual
Summary of Contents for RELION RER670
Page 1: ...RELION 670 SERIES Railway application RER670 Version 2 2 IEC Commissioning manual...
Page 2: ......
Page 26: ...20...
Page 54: ...48...
Page 58: ...52...
Page 62: ...56...
Page 80: ...74...
Page 188: ...182...
Page 194: ...188...
Page 204: ...198...
Page 214: ...208...
Page 215: ...209...