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3 Operation Theory
PCS-9611 Feeder Relay
3-61
Date: 2014-04-08
Where:
“U
Prot
” is the protection voltage value;
“U
Sy n
” is the synchro-check voltage value;
[25.U_Dd] the voltage setting for denoting whether the system is dead;
[25.U_Lv] the voltage setting for denoting whether the system is live;
“t
ARDdChk
” is the setting [25A.t_DdChk], the time setting of the dead check function for the
auto-recloser;
[25A.Opt_DdChk] is the setting for selecting the dead check mode of the auto-recloser.
Non-check mode
In non-check mode case, the reclosing is permitted without taking the value , phase angle and
frequency of the two voltages into account. After the reclosing delay time, this relay will issue
a reclosing signal, if all the other reclosing conditions are ready.
If the two settings [79.En_SynChk] and [79.En_DdChk]
are set as “0”, the non-check mode will be
in service. If one of the two settings [79.En_SynChk] and [79.En_DdChk]
is set as “1”, the relevant
reclosing check mode will be in service. If the two settings [79.En_SynChk] and [79.En_DdChk]
are set as “1” together, the two reclosing check modes will be in service; and if anyone of the
reclosing check modes is met, the corresponding check output is for the auto-reclosing.
3.17.5 Auto-recloser Blocking Logic
After the auto-recloser is put into service successfully, and if anyone of the following cases occurs
at anytime in normal operation situation, the relay will block the auto-recloser automatically at
once.
1. Open the circuit breaker by manual tripping.
2. Open the circuit breaker by remote tripping.
3. The VT failure occurs and it is detected by the relay ([VTS.Alm_SynVT] = 1 or [VTS.Alm] = 1),
if the reclosing check mode is dead check mode.
4. The blocking signal of the auto-
recloser “79.Blk” is “1”; that is at least one of the blocking
auto-recloser conditions is met. The blocking auto-recloser conditions can be configured for
blocking the auto-recloser through the PCS-Explorer configuration tool auxiliary software
5. The binary input of the closing operation circuit status of the CB (BI_LowPres_Cls
) is “1”; i.e.
the CB is not ready for reclosing ([BI_LowPres_Cls] = 1).
6. The last auto-reclosing command has been issued successfully.
If the auto-recloser is blocked, there is an empty battery sign on the right bottom of LCD.
3.17.6 Auto-recloser Settings
All the settings of the auto-recloser are listed in the following table. For the information about the
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...