Hawkins electrical guide. Questions, answers & illustrations; a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833- · New York, T. Audel · leaf 81
Fig. 1,779.—External resistance or slip ring induction motor connections. The squirrelcage armature winding is not short circuited by copper end rings, but connected in-juping and the three free ends connected to three slip rings, leads going from thebrushes to th-ee external resistant. as triplex… … Fig. 1.S00.—Allis-Chalmers phase wound external resistance type or slip ring armature con-struction. The winding is for three phases and the terminalsare brought out to three sliprings. The front bracket is slightly modified to make room for these rings on the inside.For starting duty sufficient…
Electrical engineering
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