ComAp IG-NTC GC

IGS-NT-BC, SW Version 1.2.0, ©ComAp – January 2019
IGS-NT-BC-1.2.0 Reference Guide.PDF
101
The IDMT overcurrent protection is Breaker open and cool down (BOC) type.
Setpoint: Bank >V BOC
Group
Bank Protect
Range [units]
Bank <V BOC .. 150 [%]
Related FW
3.0
Force value
possible
YES
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
BankNomV or BankNomVph-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 Bank V del.
NOTE:
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
Bank >V Sd.
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: Bank <V BOC
Group
Bank protect
Range [units]
20 .. Bank >V BOC [%]
Related FW
3.0
Force value
possible
YES
Description
This setpoint adjusts the threshold level for the generator undervoltage protection.
The threshold is adjusted in % of the nominal generator voltage, which is either
BankNomV or BankNomVph-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 Bank 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).