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 76
t 125 volts. This will require two balancers of 12^ horse-power each, since there are two machines to take care of the unbal-anced current. In other words, the balancers should have 25 per 60 DIRECT-CURRENT MOTORS 51 cent of the capacity of the largest motor, rated at its highest voltage;and this,… … Fig. 42. Controllers Used with Bullock Multiple-Voltage System.AUis-Chalmers Company, Milwaukee, Wis. tures are connected to either line voltage as desired, and resistancesare introduced to prevent too sudden changes of current at the transi-tion points; additional speed variations are provided by…
Electrical engineering
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