The book Dynamos Motors Alternators And Rotary Converters was written by author Kapp, Gisbert, 1852-1922 Here you can read free online of Dynamos Motors Alternators And Rotary Converters book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Dynamos Motors Alternators And Rotary Converters a good or bad book?
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.. .. .. .. .. 600 watts. Loss of energy due to armature resistance . .. .. . 1, 358 watts. Total . .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . 2, 928 watts. AND|TRANSFORMERS. 291 The electrical efficiency^of this machine is therefore 93*438 per cent. 42, 000 + 2, 928 The mechanical efficiency is, of course, lower, because, in addition to the 2, 928 watts absorbed by resistance in the field and armature, we must provide sufficient energy to cover the losses due to magnetic and... mechanical friction and eddy currents. These losses were determined in the manner detailed in the last chapter. The field of the machine was separately exciled, and a current sent through the armature so as to run the machine light as a motor. By plotting the current as a function of the speed we obtain a straight line, which cuts the axis of ordinates at the point corresponding to 9' 2 amperes. This, therefore, is the current required at that particular excitation for overcoming all frictional resistances.
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