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 92
coming into th-. neces- sarily insulated wire or cable, this arrangement eliminates all exposed live parts and iswell adapted to making connections readily to bus bars located above or in the rear ofthe circuit breakers. SWITCHING DEVICES 1,611 Under short circuit conditions alternators develop… … ^^^^^^^^^^^ Fig. 2,237.—^Cutler Hammer enclosed float switch, designed for the automatic control ofalternating current motors operating pumps used to fill or empty tanks, sumps or otherreservoirs. The switch is operated by the rise and fall of a copper float which is con-nected to the switch lever…
Electrical engineering
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