Practical applied electricity; a book in plain English, for the practical man. Theory, practical applications and examples (1911)
Moreton, David Penn, 1882- · Chicago, The Reilly & Britton co · leaf 382
-C H h it h … necting its armature directly to the line, the field circuit ofthe machine being open. When the machine has reachedsynchronous speed, the field circuit can be closed and the loadgradually thrown on. The motor is usually connected to itsload by means of a friction clutch. This method of…
Electrical engineering
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