autotransformer

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English

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English Wikipedia has an article on:
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Etymology

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From auto- +‎ transformer.

Noun

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autotransformer (plural autotransformers)

  1. (electrical engineering) A transformer with a single winding, its output being taken from taps.
    • 1990, Vincent Del Toro, chapter 2, in Basic Electric Machines, →ISBN, page 89:
      One of the principal features of the ordinary configurations of the transformer [...] is the electrical isolation that exists between the primary and secondary windings. [...] Whenever large transformation ratios are involved, safety demands that ordinary transformers be used. However, in instances where the transformation ratio is close to unity (which minimizes the hazard), a transformer employing a single tapped winding may be used with notable advantages.
      [...] This arrangement is called the autotransformer.

Synonyms

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Translations

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