CYG PRS-7367 - Positive Sequence Overvoltage Protection 59 P; Overview

Protection Functions
PRS-7367 87
Table 3.11-3 59 settings
No.
Name
Values(Rang
e)
Unit
Step
Default
Description
1
59_i_Vol_Str
0.00 –
160.00V
V
0.01
110.00
Stage i Start value of overvoltage
2
59_i_Curve_Type
0~5
-
1
0
0 Definite time
1 IEC Normal inverse
2 IEC Very inverse
3 IEC Extremely inverse
4 IEC Long-time inverse
5 Programmable user-defined
3
59_i_Curve_ParaA
0.000~120.00
0
s
0.001
0
The Stage i Curve parameter A
4
59_i_Curve_ParaB
0.000~9.000
s
0.001
0
The Stage i Curve parameter B
5
59_i_Curve_ParaC
0.0~1.0
-
0.1
1.0
The Stage i Curve parameter C
6
59_i_Curve_ParaP
0.02~2.00
-
0.01
2.00
The Stage i Curve parameter P
7
59_i_Curve_ParaK
0.05-100
-
0.01
1.00
The Stage i Curve parameter k
8
59_i_Min_Op_T
0.040-60.000
s
0.001
0.040
The Stage i minimum operating
time
9
59_i_Reset_T
0.000 -60.000
s
0.001
0.02
The Stage i Reset time delay
10
59_i_Str_Ph_Num
1 out of 3
-
1
1
The Stage i Number of phases
required for operate activation
11
59_i_Vol_Select
1-2
-
1
2
The Stage i voltage parameter
selection criteria: 1 for phase
voltages,2 for phase-to- phase
voltages
12
59_i_Ena
0-1
-
1
0
The Stage i Protection
enable/disable
13
59_i_Alm_Ena
0-1
-
-
0
The Stage i 59 alarm/ 59 operate
3.12 Positive sequence overvoltage protection 59P
3.12.1 59P Overview
This relay provides a one-stage positive sequence overvoltage protection with definite time delay
characteristics.
3.12.1.1 Function Block
The function block of the protection is as below.