Negative Sequence Overcurrent Protection Settings - NR Electric PCS-9611 Instruction Manual

35 A.50/51G4.Opt_Curve
36 A.50/51G4.TMS
37 A.50/51G4.tmin
38 A.50/51G4.K
39 A.50/51G4.C
40 A.50/51G4.Alpha
NOTE!
1. The setting [A.50/51Gx.Opt_Dir] (x: 1~4) is used to select the directional mode for the No.2
stage x (x: 1~4) zero sequence overcurrent protection respectively. "0" is the non-directional
mode; "1" is the forward directional mode; and "2" is the reverse directional mode.

7.3.3 Negative Sequence Overcurrent Protection Settings

The negative sequence overcurrent protection settings (in the submenu "NegOC Settings") are
used to determine the characteristic of the negative sequence overcurrent protection.
All the settings of the negative sequence overcurrent protection are listed in the following table.
No. Menu text
1 50/51Q1.I2_Set
2 50/51Q1.t_Op
3 50/51Q1.En
4 50/51Q1.OutMap
5 50/51Q2.I2_Set
6 50/51Q2.t_Op
7 50/51Q2.En
8 50/51Q2.OutMap
9 50/51Q2.Opt_Curve
PCS-9611 Feeder Relay
The setting is for selecting the inverse time
characteristic curve for the No.2 ROC4 protection
The time multiplier setting of the No.2 stage 4
zero sequence IDMT overcurrent protection
The minimum operation time setting of the No.2
stage 4 zero sequence IDMT o vercurrent
protection
Constant "k" for the No.2 stage 4 zero sequence
IDMT o vercurrent protection, see Section 3.5.2
Constant "C" for the No.2 stage 4 zero sequence
IDMT o vercurrent protection, see Section 3.5.2
Constant "α" for the No.2 stage 4 zero sequence
IDMT o vercurrent protection, see Section 3.5.2
Explanation
The current s etting of the stage 1 negative
sequence overcurrent protection
The time setting of the stage 1 negative sequence
overcurrent protection
The logic setting of the stage 1 negative sequence
overcurrent protection
The output matrix setting of the stage 1 negative
sequence overcurrent protection
The current s etting of the stage 2 negative
sequence overcurrent protection
The time setting of the stage 2 negative sequence
overcurrent protection
The logic setting of the stage 2 negative sequence
overcurrent protection
The output matrix setting of the stage 2 negative
sequence overcurrent protection
The setting is for selecting the inverse time
characteristic curve for the NOC2 protection
Date: 2014-04-08
7 Settings
0~13 1
0.05~100.0 0.001
0~100s 0.001s
0.001~120.0 0.0001
0.00~1.00 0.0001
0.01~3.00 0.0001
Range Step
0.05In~4In 0.001A
0.03~100s 0.001s
0~1 1
0x00000 ~
1
0xFFFFF
0.05In~4In 0.001A
0.03~100s 0.001s
0~1 1
0x00000 ~
1
0xFFFFF
0~13 1
7-11