ComAp IM-NT - Protection Types

InteliMains
NT
, SW version 3.0
InteliMains-NT-BTB-3.0-Reference Guide.pdf, ©ComAp – June 2013
73
8.1.2 Protection types
LEVEL
PROTECTION TYPE
ABBREVI
ATION
CONTROLLER ACTION
RECORD
FAULT RESET
NEEDED
1
History record
Hst
none
History only
NO
1
Alarm only
Al
none
Alarmlist only
YES
1
Warning
Wrn
none
Alarmlist and
History
YES
1
AL indication
ALI
none
Alarmlist only
NO
1
A+H indication
AHI
none
Alarmlist and
History
NO
2
Breaker open
BO
Controller opens LCB, no
fault reset needed after alarm
inactivation to reclose LCB
History only
NO
2
Breaker open with
fault reset
BOR
Controller opens LCB, LCB
cannot be closed before
alarm inactivation and fault
reset
Alarmlist and
History
YES
X
Fail sensor
Fls
Can be indicated when
Analog input value is ±6%
out of sensor characteristic
range. Fls can optionally
activate corresponding (e.g.
Sd) Analog input protection
as well.
Alarmlist and
History
Configurable
8.1.3 Default protections in MCB/MGCB applications
Following protections are firmware based
PROTECTION
PROTECTION
TYPE
CORRESPONDING SETPOINTS
Bus left protections:
IDMT current
BOR
Load Protect: Load2Inom prot;Load2Inom del
IDMT Active power
BOR
Load Protect: Load2POvrldPro; OverldStrtEval;
2POvrldStEvDel
Bus Left Voltage – over and
under voltage in all phases
Hst
BusL protect: BusL Volt prot; BusLeft >V; BusLeft
<V; BusLeft V del
Bus Left Frequency – over and
under frequency
Hst
BusL protect: BusLfreq prot; BusLeft >f; BusLeft
<f; BusLeft f del
Bus right protections:
Bus Right Voltage – over and
under voltage in all phases
Hst
BusR protect: BusRVolt prot; BusRight >V;
BusRight <V; BusRight V del
Bus Right Frequency – over and
under frequency
Hst
BusR protect: BusRfreq prot; BusRight >f;
BusRight <f; BusRight f del
Configured in Protections tab in default archive:
Bus Left Voltage Unbalance
Hst
BusL protect: BusL V unbal; BusL V unb del
Bus Left Current Unbalance
Hst
BusL protect: BusL I unbal; BusL I unb del