ABB Relion 670 Series Technical Reference Manual page 852

Section 13
Scheme communication
13.8.6.5
Table 469: LCNSPTOV (47) Group settings (basic)
Name Values (Range)
Operation Disabled
Enabled
VBase 0.05 - 2000.00
Pickup2 1 - 200
tV2 0.000 - 120.000
13.8.6.6
13.8.7
13.8.7.1
846
Setting parameters
Unit Step
- -
kV 0.05
%VB 1
s 0.001
Technical data
Table 470: LCNSPTOV (47)technical data
Function
Operate value, negative
sequence overvoltage
Reset ratio, negative
sequence overvoltage
Operate time, start
Reset time, start
Critical impulse time,
negative sequence
overvoltage
Impulse margin time,
negative sequence
overvoltage
Timers
Zero sequence overvoltage protection LCZSPTOV (59N)
Function description
Zero sequence overvoltage protection
Introduction
Zero sequence components are present in all abnormal conditions involving ground.
They can reach considerably high values during ground faults.
Default
Disabled
400
10
2.000
Range or value
(1-200)% of VBase
>95%
20 ms typically at 0 to 2xV
set
25 ms typically at 2 to 0xV
set
10 ms typically at 0 to 2xV
set
15 ms typically
(0.000-120.000) s
IEC 61850
identification
LCZSPTOV
1MRK505222-UUS C
Description
Operation Enable/Disable
Base setting for voltage in kV
Negative sequence over voltage start value in
%VBase
Time delay to operate
Accuracy
± 0.5% of V at V<V
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± 0.5% of V at V>V
-
-
-
-
-
± 0.5% ± 10 ms
IEC 60617 ANSI/IEEE C37.2
identification device number
- 59N
Technical reference manual
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