AUTOTRANSFORMER

Etymology

Noun

autotransformer (plural autotransformers)

a transformer with a single winding, output being taken from taps

Synonyms

• balancing coil

• compensator

Source: Wiktionary

Au`to*trans*form"er, n. [Auto-+ transformer.] (Elec.)

Definition: A transformer in which part of the primary winding is used as a secondary winding, or vice versa; -- called also a compensator or balancing coil.

Source: Webster’s Unabridged Dictionary 1913 Edition