Table of Contents
Advertisement
1MRK 506 331-UUS A
6.8.2.2
6.8.2.3
Commissioning Manual
If SESRSYN (25) as an internal function or external device is not operated by the
injection, input signal SYNC must be connected as a permanent high signal or
controlled by a switch.
3.
Read and make notes of the reclosing operation counters on the local HMI under
Main menu/Tests/Function status/Control/SMBRREC(79,0->1)/
1:SMBRREC
Possibly reset the counters to Zero. Counters are reset in the reset menu.
4.
Make arrangements for the simulation of the CB, for example as in figure 23.
5.
Make arrangements for indication, recording and time measurements.
The signals for ,52a, RI, 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.
Switching the autorecloser for 3-phase operation function to
Disabled
and
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 Disabled/Enabled is connected, check that it works.
Set Operation to ExternalCtrl and use that control to switch Enabled and
Disabled, and check the state of the function.
Verifying the autorecloser for 3-phase operation function SMBRREC (79)
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 the autorecloser for 3-phase operation function SMBRREC(79) is not to be
operated, ensure that the SMBRREC input is activated. If SMBRREC(79) 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 pick-up.
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 RI 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 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
Section 6
Testing functionality
Enabled
115
Advertisement
Table of Contents
