autotransformer

名词 n.
中文释义

英文释义

名词 n.
  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.

词形变化

autotransformers plural

词源

Etymology tree
English auto-
Proto-Indo-European *terh₂-
Proto-Indo-European *-t
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 *-āzijos
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.
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