ComAp IG-NT Reference Manual page 138

overcurrent level is 200% of the
The reaction time of the IDMT overcurrent protection is not fixed; it depends on
how much is the actual current above the limit (nominal). The higher is the
overcurrent the shorter the reaction time will be.
E
XAMPLE OF
N
OTE
The IDMT overcurrent protection is Breaker open and cool down (BOC) type.
Setpoint: Gen >V BOC
Group Gener Protect
Range [units] Gen <V BOC
Related FW 3.0
Force value YES
possible
Description This setpoint adjusts the threshold level for the generator overvoltage protection.
The threshold is adjusted in % of the nominal generator voltage, which is either
GenNomV
FixVoltProtSel.
The protection activates if the voltage in at least one phase gets over the
threshold for time longer than
N
OTE
The asociated protection to this setpoint is Breaker open and cool down (BOC)
type. There is also Shutdown overvoltage protection, which is adjusted by setpoint
Inteli NT MINT, SW Version 3.0, ©ComAp –May 2013
IGS-NT-MINT-3.0 Reference Guide.PDF
IDMT
OVERCURRENT PROTECTION CURVE
:
.. 150 [%]
or GenNomVph-ph, depending on the position of the setpoint
:
nominal current.
Gen V del.
138