YDQ Series Liquid Rheostat Starters are specially designed to improve the starting process of medium and large size of slip ring wound rotor type electric motors. It perfectly solve the problems for high starting current shock, difficult for start and operation that are common to other type of starting methods. They are widely used with motors for pump stations, air compressors, ventilators an blowers, and other heavy machineries in industries including construction materials, metallurgy, chemical, mining and so on

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