VAMP 59 - Page 66

2.8 Earth fault protection I0>
(50N/51N)
2 Protection functions
Technical description
66
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VM59.EN001
Parameter
Value
Unit
Description
Note
Curve
DT
IEC
IEEE
IEEE2
RI
PrgN
Delay curve family:
Definite time
Inverse time. See chapter
2.14.
Set
Type
DT
NI
VI
EI
LTI
Parameters
Delay type.
Definite time
Inverse time. See chapter
2.14.
Set
t>
s
Definite operation time (for
definite time only)
Set
k>
Inverse delay multiplier (for
inverse time only)
Set
Input
Io1
IoCalc
Io1Peak
X1-7,8,9. See chapter 8.
IL1 + IL2 + IL3
X1-7,8,9. peak mode
Set
Intrmt
s
Intermittent time
Set
Dly20x
s
Delay at 20xIon
Dly4x
s
Delay at 4xIon
Dly2x
s
Delay at 2xIon
Dly1x
s
Delay at 1xIon
A, B, C, D,
E
User‟s constants for standard
equations. Type=Parameters.
See chapter 2.14.
Set
For details of setting ranges see chapter 9.2.
Set = An editable parameter (password needed)
C = Can be cleared to zero
F = Editable when force flag is on