IGS-NT Combi, SW Version 3.0, ©ComAp – May 2013
IGS-NT-Combi-3.0 Reference Guide.PDF
Setpoint: Gen <V BOC
This setpoint adjusts the threshold level for the generator undervoltage protection.
The threshold is adjusted in % of the nominal generator voltage, which is either
GenNomV or GenNomVph-ph, depending on the position of the setpoint
FixVoltProtSel.
The protection activates if the voltage in at least one phase drops below the
threshold for time longer than Gen V del.
NOTE:
The generator undervoltage protection is Breaker open and cool down (BOC)
type.
NOTE:
The BOC protections are active after the Max stab time elapsed or after the GCB
was closed, then while the GCB is closed and then also during cooling (if Cooling
speed = NOMINAL).
Setpoint: Gen >V Sd
This setpoint adjusts the threshold level for the generator overvoltage shutdown
protection. The threshold is adjusted in % of the nominal generator voltage, which
is either GenNomV or GenNomVph-ph, depending on the position of the setpoint
FixVoltProtSel.
The protection activates if the voltage in at least one phase gets over the
threshold for time longer than Gen V del.
NOTE:
The asociated protection to this setpoint is Shutdown type. There is also Breaker
open and cool down (BOC) overvoltage protection, which is adjusted by setpoint
Gen >BOC. The BOC overvoltage protection is intended to be used as first
level protection with lower threshold, whereas the shutdown one is intended
as second level with higher threshold.
Setpoint: Gen V del
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