International Library of Technology · Scranton, International Textbook Co. · leaf 516
J^ Ito B=3 ttO Fig. 30. dynamo A is operating circuit 1-; dynamo B, circuit 2;dynamo C, circuit 3. This will be apparent by referring toFig. 31. The vertical lines here represent the vertical bars,in which the breaks are indicated by open spaces. Theblack circles represent the plugs, and are… … 62. Suppose that it is desired to shut down machine Band run circuits 1 and 2 in series on machine A. Insert § 19 ELECTRIC LIGHTING. 53 plugs at cb, d^, clf and d1 and remove plugs cK and de. Thisleaves two circuits and two machines in series. Short-circuit machine 2 by inserting a plug at c\. Then…
Electrical engineering
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