Pump Motor

Pumps are used in gas filling stations to unload the gas into the storage units and dispensing
the gas into the refilling units such as automotive vehicles. During the process of unloading and
dispensing, the pump motor runs at full speed – 50Hz. Whilst unloading full speed of pump was
ok, but same not desirable during dispensing, as small quantity of LPG fills up to customer’s
vehicle tank in no time – may be a fraction of a second, Thus most of the time customer’s suspect,on quantity filled in the customer vehicle tank. Also due to frequent on-off sequence failure of
contactors was high.