ComAp IG-NT GC Reference Manual page 87

Gen >f
Threshold for generator over frequency in % of nominal frequency.
Step: 0,1 % (0=OFF)
Gen<f – 150,0 % of Nominal freq
Range:
Protection: BreakerOpen
Gen <f
Threshold for generator under frequency in % of nominal frequency.
Step: 0,1 % (0=OFF)
50,0 – Gen>f % of Nominal freq
Range:
Protection: BreakerOpen
Hint:
The generator frequency is evaluated from the L3 phase.
Gen f del
Delay for generator under frequency and over frequency protection.
Step: 0,02 s
0,00 – 600,00 s
Range:
Min stab time
This is the minimum time the controller will wait, after switching the engine to nominal RPM, to close the
GCB (the delay ensures that the GCB is closed with correct generator frequency/voltage).
Step: 1s
1 – Max stab time s
Range:
Force value: Yes
Max stab time
This is the maximum time the controller will wait for generator voltage and frequency to build up, after
switching the engine to nominal RPM.
Step: 1s
Min stab time – 3600 s
Range:
Force value: Yes
Hint:
When generator voltage in Max stab time does not reach defined limits (see Gener protect group), an alarm
occurs and the gen-set will cool down and stop.
Reverse power
Range 0 .. 50 [%]
This setpoint adjusts the threshold level for the generator reverse (negative) power protection. The threshold
is adjusted in % of the generator
The protection activates if the generator power drops below the threshold for time longer than
del.
N :
OTE
The generator reverse power protection is Breaker open (BO) type.
ReversePwr del
Range 0 .. 600.0 [s]
The setpoint adjusts the delay for generator reverse power protection. The threshold for the protection is
adjusted by setpoint Reverse
Nom EthFltCurr
Inteli NT GeCon-MARINE SPI, SW Version 3.2, ©ComAp – July 2015
IGS-NT-GeCon-MARINE-SPI-3.2.PDF
[ % ] (FV)
[ % ] (FV)
[ s ]
[ s ]
[ s ]
[%] (FV)
nominal power.
[s]
power.
(FV)
[A]
ReversePwr
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