3 Operation Theory
PCS-9611 Feeder Relay
3-18
Date: 2014-04-08
[49.Alm]
Thermal
Accumulator
CLR
&
Imax_rms > [49.K_Trp]×[49.Ib_Set]
[49.En1]
[49.En_Trp]
[49.Clr]
[49.Blk]
&
Imax_rms > [49.K_Alm]×[49.Ib_Set]
[49.En_Alm]
[49.Clr]
[49.Blk]
[49.Op]
[49.St]
Thermal
Accumulator
CLR
Figure 3.4-2 Logic diagram of the thermal overload protection
Where:
“Imax_rms” is the maximum RMS phase current;
[49.K_Trp] is the factor setting of the thermal overload protection;
[49.Ib_Set] is the reference current setting of the ther mal overload protection;
[49.K_Alm] is the factor setting of the thermal overload alarm element;
[49.En_Trp] is the logic setting of the thermal overload protection;
[49.En_Alm] is the logic setting of the thermal overload alarm element;
[49.En1] is the binary signal for enabling the thermal overload protection;
[49.Blk] is the binary signal for blocking the thermal overload protection;
[49.Clr] is the binary signal for clearing the thermal accumulation.
3.4.2 Thermal Overload Protection Settings
All the settings of the thermal overload protection are listed in the following table. For the
information about the common explanation of the settings, see
Section 7.3
.
No.
Menu text
Explanation
Range
Step
1
49.Ib_Set
The reference current s etting of the thermal
overload protection
0.05In~3.0In
0.001A
2
49.Tau
The time constant setting of the thermal overload
protection
10~6000s
0.001s
3
49.C_Disspt
The thermal dissipation constant s etting of the
thermal overload protection
0.2~5.0
0.001
4
49.K_Trp
The factor setting of the thermal overload
protection which is associated to the thermal state
formula
1.0~3.0
0.001
5
49.K_Alm
The factor setting of the thermal overload alarm
element which is associated to the thermal state
formula
1.0~3.0
0.001
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...