Transformer core part 1 an introduction to materials, a second level course

Tallennettuna:
Bibliografiset tiedot
Yhteisötekijä: Open University
Aineistotyyppi: Dia
Kieli:englanti
Julkaistu: [London] Production for Open University by BBC 1972
Aiheet:
Electric transformers
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522 0 0 |a Credits : Film produced by Feranti Ltd.; production by Jim Stevenson 
545 0 0 |a Summary : Discusses why transformers are needed in electricity industry and shows the materials used for constructing the transformer core 
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