IGS-NT Combi, SW Version 3.0, ©ComAp – May 2013
IGS-NT-Combi-3.0 Reference Guide.PDF
mains operation, for power management and other functions.
NOTE:
The actual setpoint units and range depend on setting of the Power format in
GenConfig.
Setpoint: Nomin current
This setpoint is used for adjusting the generator nominal current.
The nominal current is used as the basis (100%) for generator thermal-
overcurrent protection (2Inom del), and for short current protection (Ishort).
NOTE:
The setpoints CT ratio prim and CT ratio sec must be adjusted properly to obtain
correct generator current readings.
CAUTION!
The maximum measurable input current to the controller current terminals is 11A.
WARNING!
Do not discconnect the CT terminals from the controller while there is nonzero
current in the CT primary circuit!
Setpoint: CT ratio prim
Nominal current of the primary side of the generator current transformers. The
secondary side is adjusted by setpoint CT ratio sec.
Setpoint: CT ratio sec
Nominal current of the secondary side of the generator current transformers. The
primary side is adjusted by setpoint CT ratio prim.
NOTE:
The CT secondary nominal current is adjustable only in IG-NTC and IS-NT. The
IG-NT has the CT secondary nominal current adjusted fixedly to 5A regardless of
this setpoint.
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