These days, Multistoried flats and apartments are mostly equipped
with back-up Generator due to frequent Power cuts. When the Main Supply
is ON,SWIFT ACCL allows full load connected to EB supply. In the event
of Mains (EB supply) failure,the back-up Generator is Switched ON.
Since the Generators are not installed to the full capacity,only
essential loads are allowed while running the Generator. If Overload
occurs SWIFT ACCL switches OFF the Generator supply to the permises.
Only when the load is reduced to a specifed limit, it continues to give
the Generator supply for the essential loads automatically.