Thermal Overload Protection Settings; Overvoltage And Undervoltage Protection Settings - NR Electric PCS-9611 Instruction Manual

when the enabling conditions are satisfied (See Section 3.10).
2. The setting [SOTF.Opt_Mode] is used for selecting the acceleration tripping mode of the
SOTF protection. Setting as "1" means accelerated tripping before auto-reclosing; and setting
as "0" means accelerated tripping after auto-reclosing.

7.3.9 Thermal Overload Protection Settings

The thermal overload protection settings (in submenu "ThOvLd Settings") are used to determine
the characteristic of the thermal overload protection.
All the settings of the thermal overload protection are listed in the following table.
No. Menu text
1 49.Ib_Set
2 49.Tau
1 49.C_Disspt
3 49.K_Trp
4 49.K_Alm
5 49.En_Trp
6 49.En_Alm
7 49.OutMap

7.3.10 Overvoltage and Undervoltage Protection Settings

The overvoltage and undervoltage protection settings (in the submenu "VoltProt Settings") are
used to determine the characteristic of the overvoltage and undervoltage protections.
All the settings of the overvoltage and undervoltage protections are listed in the following table.
No. Menu text
1 27P.Opt_1P/3P
2 27P.Opt_Up/Upp
3 27P1.U_Set
PCS-9611 Feeder Relay
Explanation
The reference current s etting of the thermal
overload protection
The time constant s etting of the IDMT o verload
protection
The thermal dissipation constant setting of the
thermal overload protection
The factor setting of the thermal overload
protection which is associated to the thermal state
formula
The factor setting of the thermal overload alarm
element which is associated to the thermal state
formula
The logic s etting of the thermal overload
protection for tripping
The logic s etting of the thermal overload
protection for alarming
The output matrix setting of the thermal overload
protection
Explanation
The setting for s electing the undervoltage
protection calculation method
The setting for selecting the voltage input mode
for the undervoltage protection
The voltage setting of the stage 1 undervoltage
protection
Date: 2014-04-08
7 Settings
Range Step
0.05In~3.0In 0.001A
10~6000s 0.001s
0.2~5.0 0.001
1.0~3.0 0.001
1.0~3.0 0.001
0~1 1
0~1 1
0x00000 ~
1
0xFFFFF
Range Step
0~1 1
0~1 1
2~120V 0.001V
7-17