CYG PRS-7367 User Manual

Protection Functions
PRS-7367 35
No
Name
Range
Unit
Step
Typical
Description
9
Prot2_TV_Primary
0.01~1000
kV
0.01
110
The rated primary value of the
No.2 protection VT
10
Prot2_TV_Secondary
0.01~1000
V
0.01
115
The rated secondary value of the
No.2 protection VT
11
Un_SV
0.1~1200
kV
0.01
110
Un_SV means the Rated voltage
at SV side, SV menas HV, MV, LV
in REF protection.
12
Sn
0.1~3000
MVA
0.1
100
Transformer or reactor capacity
3.2 Non-directional overcurrent protection 50/51P
3.2.1 50/51P Overview
The overcurrent protection in this relay provides one stage instantaneous non-directional phase
overcurrent protection, three stages non-directional phase overcurrent protection within
dependent definite time (DT) and inverse definite minimum time (IDMT) characteristics, and one
stage PT supervision overcurrent protection within dependent definite time (DT) and inverse
definite minimum time (IDMT) characteristics. Each stage can be enabled or disabled
independently by the logic settings respectively. All overcurrent module, phase selection module,
time characteristic settings apply to all three phases and are independent from each other. The
operate time characteristics for each stage can be selected to be either definite time (DT) or
inverse definite minimum time (IDMT). Configuring the relevant settings can enable or disable the
corresponding protection.
3.2.1.1 Function Block
The function block of the protection is as below.
I3P
51P
Blk
Blk_Str
Blk_Op
Str_A
Op
Ena_Mult
Str_B
Str_C
Str
Op_A
Op_B
Op_C
Alm
Figure 3.2-1 Function block

CYG PRS-7367 Specifications

General

Brand	CYG
Model	PRS-7367
Category	Control Unit
Language	English