Practical applied electricity; a book in plain English, for the practical man. Theory, practical applications and examples (1911)
Moreton, David Penn, 1882- · Chicago, The Reilly & Britton co · leaf 389
Fig. 316 Fig. 317 Large transformers are often constructed so that they canbe cooled by forcing a blast of air through them. The coilsin such transformers are usually sprBad apart so as to formducts through which the air may circulate. Large transformers are often cooled by circulating waterthrough…
Electrical engineering
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