Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 153
ole armatureresistance R and then throughthe motors in series. Thearmature resistance is gradu- ally cut out as the controller Fig. 152.—Diagram of connections of is moved to position .5, whenreversing drum. , i , & the motors are in series across the line and are running at half speed. The… … Fig. 153. -Section through drum type of controller, showing the blow outcoil. two motors in parallel. The resistance is gradually cut out as thecontroller is moved to position 12, the motors are then in parallelacross the line and are running at full speed. The complete controller is shown…
Electrical engineering
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