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 182
employed where 160 MANAGEMENT OF DYNAMO-ELECTRIC MACHINERY 39 a great starting torque and a fairly uniform running speed arerequired, as, for example, with electric hoists or elevators. Method of Reversing Direction of Rotation in Motors. Toreverse the direction of any direct-current motor, the… … Fig. ao. Frame and Field Colls of Commutating-Pole MotorCourtesy of Crocker-Wheeler Company compound or differentially wound and the direction of rotationis to be reversed, the current in the series winding must be keptso that it either assists or opposes, as the case may be, the currentin the…
Electrical engineering
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