Off-circuit Tap Changer for Transformers

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This tap changer applies to the single-phase,three-phase,combination oil-immersed transformer of electrical power with frequency of 50HZ,60HZ,rated voltage of 10KV,20KV,35KV,rated current of 30A~250A;the voltage-regulating positions are central part,neutral point,can be directly fixed on the box-cover of the transformer,under the non-excitation condition regulating and changing.