ComAp IG-NT GC Reference Manual page 45

1) Set #SysLdCtrl PtM = Baseload, set Baseload value to 30 % of Nominal power of one gen-set.
2) Set Load gain to the same value as Slip freq gain. Set Load int to zero.
3) Start the gen-set in MAN Mode, press GCB ON/OFF button to synchronize and close gen-set to mains.
4) When GCB is closed, gen-set load slowly increases to Base load value. Check that gen-set power is
positive (CT polarity!).
5) Increase Load gain to unstable load control and decrease value by 30 % to insure stable performance.
When Load int factor is set to zero gen-set load can differ from required Baseload.
6) To adjust and optimize Load int change several times Base load between 30 and 70 % of Nominal
power. Usually setting Load int to 100% gives optimal performance.
7) When gen-set is running full load check if
a. Speed governor output voltage value is not limited (not reached SpeedGovLowLim or
SpeedGovHiLim)
b. Speed governor actuator isn't mechanically limited or operates in small section of throttle range.
Active and reactive power terminology
MAINS
P > 0 Import
Q> 0 Import
Q
Cos < 0 L Cos > 0 L
Export P Import P
Import Q Import Q
Cos < 0 C
Cos > 0 C
Export P
Import P
Export Q
Export Q
Mains
Exported active power is supplied to the mains. It is displayed in negative numbers e.g. –20kW.
Imported active power is consumed from the mains. It is displayed in positive numbers e.g. +20kW.
When reactive power is imported (>0) InteliMains-NT displays L (inductive) character of the load.
When reactive power is exported (<0) InteliMains-NT displays C (capacitive) character of the load.
Load
Active power consumed by Load is displayed in positive numbers e.g. 20kW.
When reactive power is positive (>0) InteliMains-NT displays L (inductive) character of the load.
When reactive power is negative (<0) InteliMains-NT displays C (capacitive) character of the load.
Genset
Generated active power is displayed in positive numbers e.g. 20kW.
When reactive power is positive (>0) IGS-NT displays L (inductive) character of the load.
When reactive power is negative (<0) IGS-NT displays C (capacitive) character of the load.
Synchronizer adjustment
7) Start the engine in SEM Mode.
8) Set the engine RPM by speed trim on speed governor or by Speed gov bias and SpeedGovLowLim and
SpeedGovHiLim to Nominal frequency.
9) To start synchronizing press GCB ON/OFF button. GCB LED starts to flash to indicate synchronization.
To stop synchronization press again GCB ON/OFF .
Inteli NT GeCon-MARINE SPI, SW Version 3.2, ©ComAp – July 2015
IGS-NT-GeCon-MARINE-SPI-3.2.PDF
LOAD
P > 0 Consumption
Q> 0 Consumption
Q
Cos > 0 L
Consumption P
Inductive LOAD
P
Cos > 0 C
Consumption P
Capacitive LOAD
GEN
P> 0 Generation
Q> 0 Generation
Cos < 0 L
Consumption P
Generation Q
P
Cos < 0 C
Consumption P
Consumption Q
Q
Cos > 0 L
Generation P
Generation Q
P
Cos > 0 C
Generation P
Consumption Q
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