Breaker Failure Protection Settings - NR Electric PCS-9611 Instruction Manual

13 50/51SEF3.3I0_Set
14 50/51SEF3.t_Op
15 50/51SEF3.Opt_Dir
16 50/51SEF3.En
17 50/51SEF3.OutMap
18 50/51SEF4.3I0_Set
19 50/51SEF4.t_Op
20 50/51SEF4.Opt_Dir
21 50/51SEF4.En
22 50/51SEF4.OutMap
23 50/51SEF4.Opt_Curve
24 50/51SEF4.TMS
25 50/51SEF4.tmin
26 50/51SEF4.K
27 50/51SEF4.C
28 50/51SEF4.Alpha
NOTE!
1. The setting [50/51SEFx.Opt_Dir] (x: 1~4) is used to select the directional mode for the stage
x (x: 1~4) sensitive earth fault protection respectively. "0" is the non-directional mode; "1" is
the forward directional mode; and "2" is the reverse directional mode.

7.3.5 Breaker Failure Protection Settings

The breaker failure protection settings (in the submenu "BFP Settings") are used to determine the
characteristic of the breaker failure protection.
All the settings of the breaker failure protection are listed in the following table.
PCS-9611 Feeder Relay
The current setting of the stage 3 sensitive earth
fault protection
The time setting of the stage 3 sensitive earth
fault protection
The setting is used to select the directional mode
for the stage 3 SEF protection, see Section 3.6.3
The logic setting of the stage 3 sensitive earth
fault protection
The output matrix setting of the stage 3 sensitive
earth fault protection
The current setting of the stage 4 sensitive earth
fault protection
The time setting of the stage 4 sensitive earth
fault protection
The setting is used to select the directional mode
for the stage 4 SEF protection, see Section 3.6.3
The logic setting of the stage 4 sensitive earth
fault protection
The output matrix setting of the stage 4 sensitive
earth fault protection
The setting is for selecting the inverse time
characteristic curve for SEF4 protection
The time multiplier setting of the IDMT sensitive
earth fault protection
The minimum operation time setting of the IDMT
sensitive earth fault protection
Constant "k" for the IDMT sensitive earth fault
protection, see Section 3.6.2
Constant "C" for the IDMT sensitive earth fault
protection, see Section 3.6.2
Constant "α" for the ID MT sensitive earth fault
protection, see Section 3.6.2
Date: 2014-04-08
7 Settings
0.005~1.0A 0.001A
0~100s 0.001s
0~2 1
0~1 1
0x00000 ~
1
0xFFFFF
0.005~1.0A 0.001A
0~100s 0.001s
0~2 1
0~1 1
0x00000 ~
1
0xFFFFF
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
7-13