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 153
, high or excessvoltage relays are employed to trip the automatic circuit breaker. Pig. 2.343 … ■ - 2S42. Set- 12 amperes. axe of similar design and wired in the same manneras the low voltage re. Reverse pliose relays have been developed for operating con-ditions under which a reversal of phase would cause trouble,as for example, in the case ■. jtor motors. se are so designed - base reversal…
Electrical engineering
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