Products & Services

Auto Transformer



Auto Transformer /自耦变压器


Auto transformers are always with a common winding in which primary and secondary are not galvanically /electrically separated. This kind of transformer is preference as an economical solution as step up or step down the voltage is needed; or applied in some devices like speed control of ventilation fans and soft start of larger 3-phase motors etc,.

This auto transformer construction is considerable lighter and smaller than a similar isolating transformers. Unionpower provides auto transformers with power range from 100VA to 10KVA for both toroidal auto transformer and single & three phase auto transformer

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