Dynamo electric machinery; its design, construction, and operation; direct-current machines (1915)
Sheldon, Samuel, 1862-1920, Hausmann, Erich, 1886- joint author · New York, D. Van Nostrand Company; · leaf 280
E.M.F. of its motorwinding is five times the E.M.F. induced in its generatorwinding. Consider the dynamotor and main motor to beconnected to the supply mains as indicated in Fig. 171, thefield winding of the former being excited by current takendirectly from the mains, and the negative brush of… … At starting, the main motor, which drives the press andwhich is generally a cumulatively compound-wound motor,is supplied with current from the generator end of the dyna-mo tor. The voltage withwhich it is supplied is some-what less than one-fifth thatof the main supply, dependingupon the magnitude…
Electric machinery
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