Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 146
t is im-possible to start up except with full field, it is also impossible toleave the starting arm B in any position intermediate betweenthe starting and the running positions. When a motor has to be operated with a weak magnetic field, Art. 147] HAND-OPERATED FACE PLATE STARTERS 121 for…
Electrical engineering
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