ComAp InteliATS NT PWR - AMF Settings; Frequency, Return, and Transfer Delay Settings

InteliATS
NT
PWR, SW version 1.0, ©ComAp – March 2009 41
IA-NT- PWR-1.0-Reference Guide R1.pdf
Volt Unbal Del [s]
Delay for generator voltage unbalance alarm.
Step: 0.1s
Range: 0.0 – 600.0 s
Gen >Freq Trp [%]
Threshold for generator phase L3 overfrequency.
Step: 0.1% of Nominal frequency
Range: 0 (Gen <Freq Sd) – 200.0% of Nominal frequency
Gen <Freq Trp [%]
Threshold for generator phase L3 underfrequency.
Step: 0.1% of Nominal frequency
Range: 0.0 – 200 (Gen >Freq Sd ) % of Nominal frequency
Gen Freq Del [s]
Delay for generator underfrequency and overfrequency alarm.
Step: 0.1s
Range: 0.0 – 600.0 s
AMF Settings
RetFromIsland [MANUAL, AUTO]
MANUAL: After closing GCB, IA-NT goes to MAN Mode automatically.
AUTO: No automatic switching to MAN Mode.
EmergStart Del [s]
Delay after the mains failure to the start of the gen-set
Step: 1s
Range: 0 – 6000 s
MainsReturnDel [s]
Delay after the mains return to the GCB opening.
Step: 1s
Range: 1 – 3600 s
Transfer Del [s]
Delay after GCB opening to MCB closing during the return procedure.
Delay after MCB opening to GCB closing if the setpoint MCB Opens On set to GENRUN
Step: 0.1s
Range: 0 – 600.0 s