International Library of Technology · Scranton, International Textbook Co. · leaf 483
Theprojecting ends of the coils c are usually spread out likea fan, so as to allow the air to circulate freely between them. WIIVDIIVG AND IIVSULATIOIV OF COILS. 4214. Since transformer coils are usually of simpleshape, they can generally be lathe wound and thoroughlyinsulated. High insulation is… … Fig. 1667. the shape of primary coil commonly used for shell trans-formers. The coils have to withstand a high impressed lineE. M. F., and the voltage between layers may therefore beconsiderable. Insulation / should be placed between eachlayer, and may be composed of oiled linen tape or other…
Electrical engineering
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