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 116
ed in connection with ashunt trip attachment to insure the immediate disconnection of the shunt coil from thecircuit. It may also be employed to serve other purposes, such as tripping another circuitbreaker having a low voltage attachment, and permitting another circuit breaker toremain closed only… … Fig. 2.274.—General Electric circuit closing auxiliary switch. This switch closes when thecircuit breaker opens, and may be used to announce the automatic opening of the circuitbreaker through the means of an indicating lamp or an alarm bell. It is often necessaryto arrange one circuit breaker so…
Electrical engineering
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