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Off circuit cage type tap changer

WST (WDT)  de-energized, linear tap changer

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The series is composed of an electric transmission mechanism, a switch body and an electric controller. It is suitable for oil-immersed transformers with a maximum equipment voltage of 10 kV, 35KV, 66KV, 110KV and a rated current of 2000A or less. Tap and switch in the de-energized state, which can be operated electrically or manually .It can only be operated under the condition that the transformer is de-energized!