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 383
phase, they may be connected directly together. When lamps are used in synchronizing, they should be con-nected as shown in Fig. 311, one in each phase. The switchshould be so arranged that it can be closed the instant themachines are in phase and synchronism, viz, when the lampsare dark. Two… … that their e.m.f.s are in series or in opposition when themachines are in phase and synchronism. When they are inopposition and a lamp in circuit, the lamp will be dark whenthe machines are in phase and synchronism, and if they areconnected in series the lamp will be light. The synchronoscope is an…
Electrical engineering
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