ABB REL650 series, Commissioning Manual

Page: 151 / 208

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. If a single-shot auto
reclosing program is selected, 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 a three-phase transient and permanent
faults, and other applicable cases, such as signal to
STARTHS and high-speed
reclosing.
If just single-phase reclosing is selected,
ARMode = 1ph , a check can be run
to make sure that a three-phase trip does not result in any auto reclosing.
Other similar cases can be checked as required.
9.8.2.4 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.
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
1MRK 506 383-UEN A
Section 9
Testing functionality by secondary injection
Line distance protection REL650 2.2 IEC 145
Commissioning manual