5consists of a skid mounted enclosure, all equipment necessary for manual or automatic operation of power plant, the control unit is divided into control room and a relay room, the control room contains one to five unit switchgear cubicles and a transformer cubicle, each switchgear cubicle houses an air circuit breaker, the door of each switchgear cubicle contains relay and switches, the transformer cubicle contains transformers relays switches and meters, a fault annunciator light panel and a manual engine start panel, the relay room contains a master control panel an auxiliary master control panel a fuse panel and a battery charging panel and one speed sensing panel and one unit control panel for each generating unit, a storage battery for engine starting