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    Autotransformers

    An autotransformer is a transformer with only one winding, that is, the output and input share a set of coils. Definition of coupling in auto coupling is electromagnetic coupling. When autotransformer is used as a step-down transformer, a part of the turns are drawn from winding as the secondary winding. When autotransformer is used as a step-up transformer, the applied voltage is only applied to a part of the turns of winding.
    According to structure, auto transformer can be divided into variable type and constant type. The common power phase numbers are 3-phase and single-phase. In step-down starters, the transformation ratio of an autotransformer is fixed, while the transformation ratio of a contact voltage regulator is variable. Compared with general transformers of the same capacity, autotransformers have the advantages of simple structure, less materials, small size, and low price.

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    1 kVA 3-Phase Autotransformer, 380V to 220/200V

    $473.69
    SKU: ATO-T-ASG1KVA
    3-phase autotransformer has 1 kVA rated capacity, for step down the voltage 380V to 220V/200V, current input 1.5A, output 2.6A/2.8A, frequency 50/60 Hz, electromagnetic induction. The primary and secondary windings of dry type auto transformer are insulated from each other, stable output, low price.

    5 kVA 3-Phase Autotransformer, 380V to 220/200V

    $617.54
    SKU: ATO-T-ASG5KVA
    3-phase step down autotransformer for sale, good price. Rated capacity 5kVA, input voltage 380V (current 13A), output voltage 220V/200V (current 14A), frequency 50/60 Hz, copper/aluminum wire for selection. Dry type auto transformer, electromagnetic induction, the primary and secondary windings are insulated separately.

    15 kVA 3-Phase Autotransformer, 380V to 220/200V

    $1,233.23
    SKU: ATO-T-ASG15KVA
    Buy dry type autotransformer at affordable price online. Power rating 15kVA, steps down the input voltage 3-phase 380V to 220V/200V output, input current 23A, output 39/43A, AC circuit 50Hz or 60 Hz, optional copper/aluminum wire. Dry type auto transformer supports self-cooling or wind-cooled, F insulation class winding.

    25 kVA 3-Phase Autotransformer, 380V to 220/200V

    $1,484.31
    SKU: ATO-T-ASG25KVA
    3-phase autotransformer from professional manufacturer. Capacity rating 25kVA, designed to step down high voltage 380 volt to 220/200 volt, applicable AC circuit 50 Hz or 60 Hz, self-cooling or wind-cooled. Dry type auto transformer has copper/aluminum wire winding for selection, 98% high efficiency, competitive price.

    30 kVA 3-Phase Autotransformer, 380V to 220/200V

    $2,052.31
    SKU: ATO-T-ASG30KVA
    Manufacturer price 3-phase autotransformer for sale online. Rated power capacity 30 kVA, primary input voltage 380 volts, secondary output voltage 220V/200V, AC circuit 50/60 Hz, optional copper/aluminum winding, supports self/wind-cooled, open type and sealed type versions are available.

    45 kVA 3-Phase Autotransformer, 380V to 220/200V

    $2,724.92
    SKU: ATO-T-ASG45KVA
    Provide 3-phase autotransformer for sale online, ideal price. Power rating 45kVA, designed to step down high voltage 380 volt to 220/200 volt, used in AC circuit 50 Hz or 60 Hz, available self-cooling or wind-cooled. Winding of the dry type auto-transformer is copper or aluminum for selection, voltage customization is available, wide applications.

    75 kVA 3-Phase Autotransformer, 380V to 220/200V

    $3,699.92
    SKU: ATO-T-ASG75KVA
    3-phase autotransformer uses copper or aluminum winding, rated capacity 75 kVA, steps down the primary voltage 380V to secondary 220/200V, frequency 50/60 Hz, self-cooling or wind-cooled. Winding of the dry type auto-transformer has ≥98% high efficiency, other input/output voltages are customizable.

    100 kVA 3-Phase Autotransformer, 380V to 220/200V

    $4,659.31
    SKU: ATO-T-ASG100KVA
    ATO dry-type autotransformer for sale, economical price. Function is step down the input voltage 3-phase 380V to 220/200V output, power rating 100 kVA, rated frequency 50/60 Hz, winding material copper/aluminum, cooling mode self/wind-cooled, primary and secondary windings are isolated with each other.