3 Operation Theory
PCS-9611 Feeder Relay
3-58
Date: 2014-04-08
1. The CB is closed manually (local or remote) and the CB normally closed contact (BI_52b) is
“0”.
2. Any protection element is not in startup status; i.e. the fault detector does not operate: when
the CB is closed, if the fault detector is operated, it means that the CB is closed onto an
abnormal system or a fault system.
3. The blocking signal of the auto-
recloser “79.Blk” is “0”; that is no blocking auto-recloser
condition is met.
4. The binary input of the operation circuit status of the CB (BI_LowPres_Cls
) is “0”; i.e. the CB
is ready for reclosing.
If the auto-recloser is ready, there is a full charged battery sign on the right bottom of LCD.
The logic diagram of the auto-recloser ready conditions is shown as below.
&
79.Ready
[BI_52b]
[FD.Pkp]
[BI_LowPres_Cls]
[79.Blk]
[79.En]
[79.En1]
&
&
t
CBCls
100ms
0
t
PWBlk
t
CBRdy
0
Figure 3.17-4 Logic diagram of the auto-recloser ready conditions
Where:
[79.En] is the logic setting of the auto-recloser;
[79.En1] is the binary signal for enabling the auto-recloser;
[BI_52b] is the binary input for inputting the normally closed contact of the circuit breaker;
[FD.Pkp] means that the fault detector is operated;
[BI_LowPres_Cls] is the binary input for inputting the CB closing low pressure signal;
[79.Blk] is the binary signal for blocking the auto-recloser;
“t
CBCls
” is the setting [79.t_CBClsd] of the minimum time delay for ensuring the CB is closed;
“t
CBRdy
” is the setting [79.t_CBReady] of the time delay for ensuring the CB is ready;
“t
PWBlk
” is the setting [79.t_DDO_BlkAR] of the pulse width for ensuring the AR blocking
signal.
3.17.3 Auto-recloser Startup Condition
The startup condition of the auto-recloser is that anyone of the protective elements (for example,
the overcurrent protection, zero sequence overcurrent protection etc.) which are configured for
initiating the auto-recloser through the PCS-Explorer configuration tool auxiliary software has
Содержание PCS-9611
Страница 1: ...PCS 9611 Feeder Relay Instruction Manual NR Electric Co Ltd...
Страница 2: ......
Страница 10: ...1 Introduction PCS 9611 Feeder Relay 1 b Date 2014 04 08...
Страница 30: ...2 Technical Data PCS 9611 Feeder Relay 2 14 Date 2014 04 08...
Страница 36: ...3 Operation Theory PCS 9611 Feeder Relay 3 f Date 2014 04 08...
Страница 108: ...4 Supervision PCS 9611 Feeder Relay 4 b Date 2014 04 08...
Страница 116: ...5 Management Function PCS 9611 Feeder Relay 5 b Date 2014 04 08...
Страница 120: ...5 Management Function PCS 9611 Feeder Relay 5 4 Date 2014 04 08...
Страница 218: ...9 Configurable Function PCS 9611 Feeder Relay 9 b Date 2014 04 08...
Страница 232: ...9 Configurable Function PCS 9611 Feeder Relay 9 14 Date 2014 04 08...
Страница 262: ...11 Installation PCS 9611 Feeder Relay 11 b Date 2014 04 08...
Страница 272: ...12 Commissioning PCS 9611 Feeder Relay 12 b Date 2014 04 08...
Страница 292: ...13 Maintenance PCS 9611 Feeder Relay 13 b Date 2014 04 08...
Страница 296: ...14 Decommissioning and Disposal PCS 9611 Feeder Relay 14 b Date 2014 04 08...
Страница 298: ...14 Decommissioning and Disposal PCS 9611 Feeder Relay 14 2 Date 2014 04 08...
Страница 300: ...15 Manual Version History PCS 9611 Feeder Relay 15 2 Date 2014 04 08...