Switching The Autorecloser Function To On And Off; Verifying The Autorecloser Function Smbrrec - ABB REC650 Commissioning Manual

1MRK 511 248-UEN -
6.7.2.2
6.7.2.3
Commissioning Manual
If that is not possible, other means of time measurement and recording should
be arranged.
Switching the autorecloser function to
1. Set the Operation setting to Off and check the state.
2. Set the Operation setting to On and check the state, including SETON and
READY.
The CB should be closed and ready.
3. If external control Off/On is connected, check that it works.
Set Operation to ExternalCtrl and use that control to switch On and Off, and
check the state of the function.

Verifying the autorecloser function SMBRREC

Select the test cases to be run according to what is applicable to the particular
application. It can be, for example, three-phase single-shot reclosing or two-shot
reclosing. Below, a case with three-phase single-shot reclosing is described.
1. Set Operation = On.
2. If the autorecloser function SMBRREC is not to be operated, ensure that the
SMBRREC input is activated. If SMBRREC 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 relay start.
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 autoreclosing 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/Tests/Function status/SMBRREC(79,0->1)/1:SMBRREC
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 SMBRREC 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
reclosing program is selected, there shall be one reclosing operation and then
blocking of SMBRREC for the set Reclaim time.
Before a new reclosing sequence can be run, the CBREADY and CBPOS
(CB closed) must be set manually.
Testing functionality
On and Off
Section 6
81