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 148
dsof circulating the air, as by 1. Natural draught; 2. Forced draught, or blast. 1,406 HAWKINS ELECTRICITY Ques. Describe a natural draught air cooled trans-former. Ans. In this type, the case containing the windings i? openat the top and bottom. The column of air in the case expandsas its… … Figs. 1.961 to 1,963.—Fuse blocks for Westinghouse transformers. The fuses furnished withthe transformers are mounted in a weather proof porcelain fuse box of special design. Thestationary contacts are deeply recessed in the porcelain and are well separated from eachother. The contacts are so…
Electrical engineering
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