autotransformer
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English
Etymology
From auto- + transformer.
Noun
autotransformer (plural autotransformers)
- (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.
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