Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 65
Chap, viii switch C closed against the force of the spring S and held closedby the latch d. This latch is released by the plunger p which islifted when the line current passing round the solenoid M reachesa predetermined value, the spring $ then forces the switch open.If the plunger p is moved… … Solenoid M
Electrical engineering
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