VAMP 259 - Page 76

2.6 Overcurrent stage I> (50/51)
2 Protection functions
Technical description
76
VAMP 24h support phone +358 (0)20 753 3264
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
t>>, t>>>
s
Definite operation time
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
Recorded values of the latest eight faults
There are detailed information available of the eight latest
faults: Time stamp, fault type, fault current, load current
before the fault, elapsed delay and setting group.
Recorded values of the overcurrent stages (8 latest faults)
I>, I>>, I>>> (50/51)
Parameter
Value
Unit
Description
yyyy-mm-dd
Time stamp of the recording, date
hh:mm:ss.ms
Time stamp, time of day
Type
1-N
2-N
3-N
1-2
2-3
3-1
1-2-3
Fault type
Ground fault
Ground fault
Ground fault
Two phase fault
Two phase fault
Two phase fault
Three phase fault
Flt
xIn
Maximum fault current
Load
xIn
1 s average phase currents before
the fault
EDly
%
Elapsed time of the operating time
setting. 100% = trip
SetGrp
1
2
Active setting group during fault