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 254
he tube are closed by meansof caps through which pass electrodes for making connections between the discs and exteriorconductors. The steel tube, when necessary, is provided with ribs or fins for the dissipationof acquired heat. Precautions with Shunt Motors.—With motors of this type,because of the… … PiG. 748.—Allen-Bradley type Z automatic motor starter. The operation of this machine isas follows: When the main switch is closed, the motor circuit is made through the fuses,resistance unit, current relay, and the motor armature. At the same time, the solenoidcircuit is closed (this is connected…
Electrical engineering
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