International Library of Technology · Scranton, International Textbook Co. · leaf 434
llectorrings. It will be noticed that this armature is not providedwith a rectifier, because this style of armature is of such lowinductance that the machine can be made to regulate closelyenough without the use of a set of series coils on the field. DESIGN OF FIELD-MAGNETS.4154. Stationary… … -^ Z^ Fig. 1630. field is usually provided. The design almost universallyadopted for stationary fields consists of a circular yoke a ofcast iron or steel, Fig. 1630, provided with a number ofpoles d projecting radially inwards towards the armature. M. E. IV.—45 2800 DESIGN OF ALTERNATING The field…
Electrical engineering
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