CYG PRS-7367 - Settings; Block Busbar Protection; Overview

Protection Functions
PRS-7367 195
3.39.4 Settings
No
Name
Values(Range)
Unit
Step
Default
Description
1
37C_Ena
0~1
-
1
0
Operation Enable/Disable
=1: enable,
=0: disable
2
37C_Cur_Str
0.100-1.000In
A
0.001In
0.1In
the current starting setting
3
37C_Op_T
0-100
s
0.001
0.040
the time delay setting
3.40 Block Busbar Protection
3.40.1 Overview
Block busbar protection, together with transformer backup protection, provides blocking protection
for busbars that are not specially configured with main protection.
3.40.1.1 Function Block
The function block of the protection is as below.
RlyStr
Blk_Bus
RlyOp
BIEna
Blk1
BusBlk
BusOp
Blk2
BusOpBu
3.40.1.2 Signal
Table 3.40-1 Input Signals
Signal
Description
RlyStr
Relay Start BI
RlyOp
Relay Operation BI
BIEna
Block Busbar Enable BI
Blk1
Block 1 BI
Blk2
Block 2 BI
Table 3.40-2 Output Signals
Signal
Description
BusBlk
Busbar Block BO
BusOp
Busbar Operation Trip BO