ABB REQ650 Commissioning Manual

If SYNC as an internal function or external device is not operated by the injection,
it may be connected as a permanent high signal or controlled by a switch.
3. Read and make notes of the reclosing operation counters. Local HMI tree Main
menu/Tests/Function status/Control/STBRREC(79,0->1)/STBRREC:1
Possibly reset the counters to zero. Counters are reset in the RESET menu. Make
arrangements for the simulation of the CB, for example, as in figure 13.
4. Make arrangements for indication, recording and time measurements.
The signals for Add 52A, PICKUP, CLOSECMD, READY and other relevant
signals should preferably be arranged for event recording with time tagging. If that
is not possible, other means of time measurement and recording should be arranged.
6.7.3.2 Switching the auto-reclosing function
Enabled and Disabled
1. Set the Operation setting to Disabled and check the state.
2. Set the Operation setting to Enabled and check the state, including SETON and
READY.
The CB should be closed and ready.
3. If external control Enabled/Disabled is connected, check that it works.
4. Set Operation to ExternalCtrl, and use that control to switch Enabled and Disabled,
and check the state of the function.
6.7.3.3 Verifying the auto-reclosing function
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 = Enabled.
2. If SESRSYN (25) is not to be operated, ensure that the SYNC input is activated.
If the SESRSYN (25) function is to be included, ensure that SESRSYN (25) is
supplied with the appropriate AC quantities.
3. Simulate CB closed position by closing switch SC to make the BR relay pickup.
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 PICKUP input.
Observe and preferably record the operation. The BR relay shall trip and reclose
(pickup). 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 (disturbance report) and
the operation counters. Main menu/Tests/Function status/STBRREC (79, 0->1)/
STBRREC:1
1MRK 505 293-UUS A Section 6
Testing functionality
109
Commissioning manual

ABB REQ650 Specifications

General

Brand	ABB
Model	REQ650
Category	Protection Device
Language	English