Application of technique of speed regulation through inverter in the water supply system of Xuejiawan Power Plant

Application of speed adjustment through inverter technique in the water supply system of Xuejiawan Power Plant is introduced. Amount of water supply is adjusted through adjusting pumps speed by providing the electricity of various frequencies through an inverter, obtaining a balance between supplying and consuming of water, keeping line's pressure at 0.4 Mpa, realizing a soft start of the system, having prolonged the life of motors, pumps, valves as well as the lines.