Hawkins electrical guide. Questions, answers & illustrations; a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833- · New York, T. Audel · leaf 158
or oil circulation. Ques. Describe the minor insulation. Ans. It is the insulation placed between adjacent turns ofthe coils. Since the difference of pressure is small between the adjacent turnsthe insulation need not be very thick. It usually consists of a double 1,416 HAWKINS ELECTRICITY… … . 1974.—Three Westinghouse 20 kva, outdoor transformer, for irrigation service. These aremounted on a drag so that they may be readily transported from place to place. 33,000volts high tension; 2.200 and 440 volts low tension, 50 cycles. These outdoor trans-formers are of the oil immersed,…
Electrical engineering
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