Inteli NT GeCon MINT, SW Version 1.4, ©ComAp – June 2007
IGS-NT-GeCon-MINT-1.4.PDF
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- Configure the binary output Derating X act to a virtual periphery input.
- Configure either “History record” or “Warning”-type alarm to this input to record power derating
activity in History and optionally to indicate it in Alarmlist.
Derating1 pwr [ % ] (FV)
Derating2 pwr [ % ] (FV)
The ratio of decreasing of the gen-set nominal power at DeratingX end level.
Step: 1 % of Nomin power
Range: 0 - 100 % of Nomin power
Hints:
DeratedX power = 90% means the nominal power reduction to 90%, not by 90%.
Derating ratio is set to zero and functions are not active when Analog inputs PowerDeratingX are not
configured (e.g. in default configuration).
When Power derating function is active, the generator nominal power is decreased to DeratedX power and
so Overload protection (BOC Overload) is based on this Derated power!
The generator nominal power is reduced according to the bigger restriction – the more reduced channel out
of the two.
Process control:
Derating1Start [X]
Derating1End [X]
Derated1Power [%]
Power derating 1
analog input
Nominal power
influences Overload
protection etc.
Power derating
Process control:
Derating2Start [X]
….
Power derating 2
analog input
Synchro enable [ NONE / FORWARD ] (FV)
Enable or disable forward synchronization.
NONE: No synchronizing is enabled. Only closing GCB to dead bus allowed in this case.
FORWARD: GCB synchronizing is enabled.
Force value: Yes
#Neutral cont. [ EACH / COMMON ]
Setpoint changes behavior of binary output Neutral CB C/O that is used for Neutral contactor control.
EACH: Separate Neutral contactors and four pole GCB’s are supposed on each engine.
a) When GCB is opened (after start, before stop):
Binary output Neutral CB C/O (Neutral contactor) closes when Generator voltage is higher than 75%
of Nominal voltage.
Binary output Neutral CB C/O (Neutral contactor) opens when Generator voltage is lower than 50%
of Nominal voltage.
b) When more gen-sets are connected to the bus and MCB is opened (island running group) Binary
output Neutral CB C/O (Neutral contactor) is closed on running gen-set with the lowest
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