Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 460
Fig. 545),the dynamo is shunt-woiuid. This type is used where theoutput of current required is continuallychanging, but where the potential differ-ence between the brushes must be keptconstant, as in incandescent lighting,power distributing, etc. The regulationis accomplished by suitable… … Fig. 545.—Shunt-wounddynamo. The field-magnets, of course, lose their strength when thecurrent ceases to flow, but the cores contain sufficient residual magnetism to cause the ma-chine to develop sufficientcurrent to pick up on thestart. 531. The Electric Motor. The purpose of the electricmotor is…
Physics
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