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- Control and Display
Panel
Easy to read flush mounted control and display panel provides LED
indicators for switch position and source availabilty. It also includes
test and time-delay bypass switches
- Voltage and Frequency
Sensing
Adjustable three-phase, close-differential voltage sensing on normal
source.
Normal source pickup voltage in adjustable to 95% of nominal; drop-out
is adjustable from 70% to 90% of nominal.
Frequency sensing on emergency source. Pickup at 95% and dropout
at 85% of nominal.
- Time Delays
Adjustable time delay to overide momentary
normal source outages to delay all transfer switch and engine-starting
signals.
Transfer to emergency time delay--Adjustable from 0 to 5 minutes
for controlled timing of load transfer to emergency.
Retransfer to normal time delay--Adjustable to 30 minutes
Five-minute unloaded running time delay for emergency engine generator
cool down.
Four-second time delay to ignore momentary voltage and frequency
transients during initial genset loading.
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