autotransformer

Use Autotransformer in a sentence

autotransformer

[aw-toh-trans-fawr-mer]
noun Electricity.
a transformer having a single coil that serves as both a primary coil and a secondary coil.

Origin:
1890–95; auto-1 + transformer

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
autotransformer (ˌɔːtəʊtrænsˈfɔːmə)
 
n
a transformer in which part of the winding is common to both primary and secondary circuits

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Example sentences
Set the taps on reduced-voltage autotransformer controllers.
The motor speed is usually set by the voltage of an variable autotransformer.
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