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 155
esign to the low voltage relay ex-cepting that it acts on a decrease of current. The problem of protecting induction motors, from injury,that may result from running on single phase, or from an over-load, and at the same time permit the motor to be started withthe necessarily high starting current… … IE _ .■ £ - = - ~ EJ1 3 id 9 2 I f 3¥ S I? - a U - 3 1 : o - ■ - ■- T.
Electrical engineering
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