ABB RELION REL670, Руководство по установке и пусконаладке

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Control Chapter 11
Verifying settings by secondary
injection
11.2.3 Verifying the auto-reclosing function
Select the test cases to be run according to what is applicable to the particular application. It may
for instance be a) three-phase single-shot reclosing, b) two-shot reclosing or c) single-phase and
three-phase single shot reclosing. Below a case with single-phase and three-phase single-shot
reclosing is illustrated.
Procedure
1. Set Operation = On.
2. If SYNC is not to be operated ensure that the SYNC input is activated.
If the SYNC function is to be included, ensure that it is supplied with
the appropriate AC quantities.
3. Simulate CB closed position by closing switch SC to make the BR re-
lay pick-up.
4. Simulate CBREADY by closing the switch SRY, and leave it closed.
5. Inject AC quantities to give a trip, e.g. 1-phase trip, to the BR and to
the START input.
Observe and preferably record the operation. The BR relay shall trip and
reclose (pick-up). After reclosing, the SRY switch can be opened for
about 5 s 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 (dis-
turbance report) and the operation counters.
Test\Function status\Control\Autorecloser(RREC,79)
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 (or SYNC at three-phase reclosing).
6. Repeat the sequence by simulating a permanent fault.
Shortly after the reclosing shot a new fault is applied. If a single-shot re-
closing program is selected, there shall be one reclosing operation and
then blocking of the auto-reclosing function for the set Reclaim time.
Before a new reclosing sequence can be run, the CBREADY and CBPOS
(CB closed) must be set manually.
7. Repeat the sequence by simulating a three-phase transient and per-
manent faults, and other applicable cases, such as signal to
STARTHS and High-speed reclosing.
If just single-phase reclosing is selected, FirstShot=1ph, a check can be
run to make sure that a three-phase trip does not result in any reclosing.
Other similar cases can be checked as required.