VAMP 59 - Combined Overcurrent Status

3.9 Combined overcurrent status
3 Supporting functions
Technical description
126
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VM59.EN001
3.9. Combined overcurrent status
This function is collecting faults, fault types and registered
fault currents of all enabled overcurrent stages.
Combined overcurrent status can be used as an indication of
faults. Combined o/c indicates the amplitude of the last
occurred fault. Also a separate indication of the fault type is
informed during the start and the trip. Active phases during
the start and the trip are also activated in the output matrix.
After the fault is switched off the active signals will release
after the set delay “clearing delay“ has passed. The combined
o/c status referres to the following overcurrent stages:
I>, I>> and I>>>.
Line fault parameters
Parameter
Value
Unit
Description
Note
IFltLas
xImode
Current of the latest
overcurrent fault
(Set)
LINE ALARM
AlrL1
AlrL2
AlrL3
0
1
Start (=alarm) status for
each phase.
0=No start since alarm
ClrDly
1=Start is on
OCs
0
1
Combined overcurrent
start status.
AlrL1=AlrL2=AlrL3=0
AlrL1=1 orAlrL2=1 or
AlrL3=1
LxAlarm
On
Off
'On' Event enabling for
AlrL1...3
Events are enabled
Events are disabled
Set
LxAlarmOff
On
Off
'Off' Event enabling for
AlrL1...3
Events are enabled
Events are disabled
Set
OCAlarm
On
Off
'On' Event enabling for
combined o/c starts
Events are enabled
Events are disabled
Set
OCAlarmOff
On
Off
'Off' Event enabling for
combined o/c starts
Events are enabled
Events are disabled
Set