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 271
t motors the rating is such that a temperature riseof 50° C. will not be exceeded on an indefinite run. Amotor so rated will carry 100 per cent overload for a halfhour without overheating or damaging the insulation. Although the voltage of these motors is somewhat lowfor the use of carbon brushes,… … Fig. 165. Fig. 165 illustrates a motor which is used on automo-biles and manufactured by the Eddy Electric Manufactur-ing Company. The armature winding consists of formedcoils which are cross-connected, and therefore only twobrushes are required. These brushes are made accessibleby providing a…
Electric machinery
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