ABB Relion 670 Series Technical Reference Manual page 854

Section 13
Scheme communication
13.8.7.5
Table 473: LCZSPTOV (59N) Group settings (basic)
Name Values (Range)
Operation Disabled
Enabled
VBase 0.05 - 2000.00
3V0PU 1 - 200
t3V0 0.000 - 120.000
13.8.7.6
13.8.8
13.8.8.1
848
Setting parameters
Unit Step
- -
kV 0.05
%VB 1
s 0.001
Technical data
Table 474: LCZSPTOV (59N)technical data
Function
Operate value, zero
sequence overvoltage
Reset ratio, zero
sequence overvoltage
Operate time, start
Reset time, start
Critical impulse time, zero
sequence overvoltage
Timers
Negative sequence overcurrent protection LCNSPTOC (46)
Function description
Negative sequence overcurrent
protection
Introduction
Negative sequence components are present in all types of fault condition. They can
reach considerably high values during abnormal operation.
Default
Disabled
400
10
2.000
Range or value
(1-200)% of VBase
>95%
25 ms typically at 0 to 1.5xV
set
25 ms typically at 1.5 to 0xV
set
10 ms typically at 0 to 1.5xV
set
(0.000-120.000) s
IEC 61850
identification
LCNSPTOC
1MRK505222-UUS C
Description
Operation Disabled/Enabled
Base setting for voltage in kV
Zero sequence voltage start value in % of
VBase
Time delay to operate
Accuracy
± 0.5% of V at V<V
n
± 0.5% of V at V>V
-
-
-
-
± 0.5% ± 10 ms
IEC 60617 ANSI/IEEE C37.2
identification device number
- 46
Technical reference manual
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n