ABB RELION REL670, Руководство по установке и пусконаладке

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143
Control Chapter 11
Verifying settings by secondary
injection
11.2.1 Preparation of the verification
Procedure
1. Check the function settings.
In the HMI tree they are found under:
Settings\Setting Group N\Control\Autorecloser(RREC,79)
If any timer settings are reduced to speed-up or facilitate the testing, they
shall be set to normal after testing. A temporary label on the unit can be
a reminder to restore normal settings after which a verification test should
be performed.
2. Decide if a synchronism check (SYNC) shall be included in the test.
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:
Test\Function status\Control\Auto recloser\Autorecloser(RREC,79)
Possibly reset the counters to zero. Counters are reset in the RESET
menu.
4. Make arrangements for the simulation of the CB, e.g. as in figure 35 .
5. Make arrangements for indication, recording and time measure-
ments.
The signals for CBPOS, START, CLOSECB, READY and other rele-
vant signals should preferably be arranged for event recording with time
tagging. If that is not possible, other means of time measurement and re-
cording should be arranged.
11.2.2 Switching the auto-reclosing function On and Off
Procedure
1. Set the Operation setting to Off and check the state.
2. Set the Operation setting to On and check the state, including SET-
ON and AR-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