VAMP 259 User Manual

2.10 Directional earth fault protection
I0φ> (67N)
2 Protection functions
Technical description
90
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VM259.EN007
Parameter
Value
Unit
Description
Note
Type
DT
NI
VI
EI
LTI
Parameters
Delay type.
Definite time
Inverse time. See chapter 2.24.
Set
t>
s
Definite operation time (for
definite time only)
Set
k>
Inverse delay multiplier (for
inverse time only)
Set
Mode
ResCap
Sector
Undir
High impedance earthed nets
Low impedance earthed nets
Undirectional mode
Set
Offset

Angle offset (MTA) for RecCap
and Sector modes
Set
Sector
Default =
88
±°
Half sector size of the trip area
on both sides of the offset
angle
Set
ChCtrl
Res
Cap
DI1…32
VI1..4
Res/Cap control in mode
ResCap
Fixed to Resistive
characteristic
Fixed to Capacitive
characteristic
Controlled by digital input
Controlled by virtual input
Set
InUse
-
Res
Cap
Selected submode in mode
ResCap.
Mode is not ResCap
Submode = resistive
Submode = capacitive
Input
I
0
I
0Calc
I
0Peak
X1:7-8. See chapter 8.
I
L1
+ I
L2
+ I
L3
X1:7-8 peak mode (I
0
> only)
Set
Intrmt
s
Intermittent time
Set
Dly20x
s
Delay at 20xIoset
Dly4x
s
Delay at 4xIoset
Dly2x
s
Delay at 2xIoset
Dly1x
s
Delay at 1xIoset
A, B, C, D,
E
User's constants for standard
equations. Type=Parameters.
See chapter 2.24.
Set
For details of setting ranges see chapter 9.3.
Set = An editable parameter (password needed)
C = Can be cleared to zero
F = Editable when force flag is on

VAMP 259 Specifications

General

Brand	VAMP
Model	259
Category	Control Unit
Language	English