Dictionary

autotransformer en · NOUN

Pronunciation

• (Southern-England) audio

Etymology

Etymology tree English auto- Proto-Indo-European *terh₂-der. Proto-Indo-European *térh₂t Proto-Indo-European *-ónts Proto-Indo-European *tr̥h₂ónts Proto-Indo-European *tr̥h₂n̥ts Proto-Italic *trāns Proto-Italic *trāns- Latin trāns- Ancient Greek μορφή (morphḗ)der.? Latin fōrma Latin fōrmō Latin transformo Old French transformer Middle French transfourmerbor. Middle English transformen English transform Proto-Indo-European *-yósder. Proto-Italic *-āzios Latin -āriusnom. Latin -āriusbor. Proto-Germanic *-ārijaz Proto-West Germanic *-ārī Old English -ere Middle English -ere English -er English transformer English autotransformer From auto- + transformer.

Meanings

1. A transformer with a single winding, its output being taken from taps.
   • 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. 1990, Vincent Del Toro, chapter 2, in Basic Electric Machines, →ISBN, page 89:

Forms

Synonyms

compensator · balancing coil

Translations (4)

ru автотрансформа́тор (Translations) · de Spartransformator (Translations) · pl autotransformator (Translations) · de Autotransformator (Translations)