International Library of Technology · Scranton, International Textbook Co. · leaf 347
sistance,but the cutting out is notas gradual as where therheostat arm is used. Itis found, however, in prac-tice that three or four re-sistance notches are suf-ficient to give a car asmooth start if the con-troller is handled properly. 15. Fig. 12 shows howan ordinary reversingswitch might be used… … RHEOSTATIC CONTROLLER, 16. General Construction.—Fig. 13 shows a moderntype of rheostatic controller designed by the General Elec-tric Company for the control of cars, haulage locomotives,or hoisting motors. This controller is considered somewhatin detail because it contains many of the features…
Electrical engineering
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