2.7 Directional overcurrent protection
Idir> (67)
2 Protection functions
Technical description
80
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VM259.EN007
Parameter
Value
Unit
Description
Note
SGrpDI
-
DIx
VIx
LEDx
VOx
Digital signal to select the
active setting group
None
Digital input
Virtual input
LED indicator signal
Virtual output
Set
Force
Off
On
Force flag for status forcing
for test purposes. This is a
common flag for all stages
and output relays, too.
Automatically reset by a 5-
minute timeout.
Set
ILmax
A
The supervised value. Max.
of I
L1
, I
L2
and I
L3
I
>, I
>>
A
Pick-up value scaled to
primary value
I
>, I
>>
xIn
Pick-up setting
Set
Curve
DT
IEC
IEEE
IEEE2
RI
PrgN
Delay curve family:
Definite time
Inverse time. See chapter
2.24.
Set
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
Dly20x
s
Delay at 20xIset
Dly4x
s
Delay at 4xIset
Dly2x
s
Delay at 2xIset
Dly1x
s
Delay at 1xIset
Mode
Dir
Undir
Directional mode (67)
Undirectional (50/51)
Set
Offset
Angle offset in degrees
Set
Measured power angle
U1
%Un
Measured positive sequence
voltage
A, B, C, D,
E
User‘s constants for
standard equations.
Type=Parameters. See
chapter 2.24.
Set