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 211
motor has notendency to spark or flash over, since the armature coils, succes-sively short-circuited by the energy brushes, are not inductivelyplaced in the magnetic field and have consequently only to com-mutate a low generated voltage. Figs. 59 and 60 show standardtypes of repulsion induction… … MANAGEMENT OF DYNAMO-ELECTRIC MACHINERY 65 rated-load torque. Where it is desired to reduce the starting cur-rent to the minimum, starting rheostats may be used. The efficiency of the repulsion induction motor varies from67 to 85 per cent and the power factor from 94 to 99 per cent,depending on the…
Electrical engineering
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