IGS-NT Combi, SW Version 3.0, ©ComAp – May 2013
IGS-NT-Combi-3.0 Reference Guide.PDF
The generator reverse power protection is Breaker open and cool down (BOC)
type.
Setpoint: ReversePwr del
The setpoint adjusts the delay for generator reverse power protection. The
threshold for the protection is adjusted by setpoint Reverse power.
Setpoint: Nom EthFltCurr
This setpoint adjust the level of EarthFault Current when IDMT protection starts to
get evaluated. Time of evaluation of this protection is given by the setpoint
2EthFltCur del. When the EarthFault Current goes below the level given by Nom
EthFltCurr, protection starts decreasing its thermal counter. For more information
about this protection, refer to the setpoint 2EthFltCur del.
Setpoint: 2EthFltCur del
This setpoint adjusts the reaction time of the IDMT EarthFault Current protection if
the current is 200% of the base level given by the setpoint Nom EthFltCurr.
The reaction time of the IDMT EarthFault Current protection is not fixed; it depends
on how much is the current above the limit (base level). The higher is the current
the shorter the reaction time will be.
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