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Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)

American Technical Society · Chicago : American Technical Society · leaf 191

An illustration from Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc., 1916, leaf 191
ternal Construction 169 48 MANAGEMENT OF DYNAMO-ELECTRIC MACHINERY position, the exact point of synchronism; and hy its direction ofrotation, whether the incoming machine is running too slow ortoo fast. Lamps are usually provided with this instrument as acheck on its operation and for use in case… … Si^nchr-on/sm /ncf/CQ^or-— Gr~ounct Seises P/utjs St art, /n^ /funn/na //O Wo/ts //O \/b/ts Fig. 44. Wlrina; Diagram for Synchronism Indicator with Potential Transformers,Secondaries Grounded. Synchronism Is Indicated When the Lamps Are Dark Figs. 44 and 45 show two methods of connecting a…

Electrical engineering

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