International Library of Technology · Scranton, International Textbook Co. · leaf 484
nce of potential between the service wires and theground would be very dangerous to life; hence the impor-tance of thorough insulation between the primary andsecondary. Some makers place a metal shield between theprimary and secondary coils which is connected to ground.If the primary insulation… … large transformers, where copper strip may be used toadvantage. For the secondary, a conductor of large cross- 3850 DESIGN OF ALTERNATING section is usually required, because the secondary voltage isgenerally low and the current correspondingly large. Fortransformers of moderate output, the…
Electrical engineering
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