2021-03-02T14:56:57+03:00[Europe/Moscow] en true Transformer, Primary Winding, Secondary Winding, Core-type Construction, Shell-type Construction, Dry transformers, Mutual Induction, Ideal Transformer flashcards
Electrical Apparatus and Devices

Electrical Apparatus and Devices

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  • Transformer
    is a static device by means of which electrical power is transformed from one alternating-current circuit to another with the desired change in voltage and current without causing any change in frequency.
  • Primary Winding
    This winding is excited or energized by connecting it to an input source.
  • Secondary Winding
    This winding is the one to which the electrical load is connected and from which the output energy is taken.
  • Core-type Construction
    each winding consists of two sections—one section placed on each of the two legs of the core—and the primary and secondary windings are arranged to be concentric coils.
  • Shell-type Construction
    the windings usually consist of thin “pancake” coils assembled in a stack, with primary and secondary coils interleaved.
  • Dry transformers
    have simple natural air cooling or are sometimes sealed into cabinets filled with nitrogen.
  • Mutual Induction
    The physical basis of a transformer between two circuits linked by a common magnetic flux.
  • Ideal Transformer
    is a lossless device with an input winding and an output winding.