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 186
o magnetize the large cast-iron core, since the length of eachturn would, be more than when some better magnetic mat(^rialwas used. Wrought iron, on the other hand, is the best magneticmaterial and at the same time the most expensive. It is usedwhere economy in weight and reduction of cross-section… … Fig. 136 176 PEACTICAL APPLIED ELECTRICITY Cast steel occupies a place intermediate between cast iron,and wrought iron both in cost and magnetic properties. IMachines are, as a rule, constructed of more than one mate-rial. Thus the field cores will be of wrought iron, as thatwould mean a saving in…
Electrical engineering
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