Profile: Controlled Systems Sales Co. specializes in ground power equipments for aircraft. Our product includes DC power supplies, motor generator, power distribution equipments, chopper rectifiers, frequency converters, thyristor rectifiers, aircraft service cable and aircraft cable storage devices. Our LDC maintains a stable line voltage between the centralized power source and the aircraft's input receptacle. It automatically adjusts capacitive reactance to the circuit in order to cancel inductive reactance of the transmission system to prevent line drop occurrences. Our cable hoist can be mounted on the side of a boarding bridge cab or from the ceiling of an aircraft maintenance hanger.