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 455
ES OF GENERATORS AND MOTORS 169 alternating voltage, but by varying the distributed flux under thepoles, or, as it is usually called, by varying the field form of theconverter. The field structure is divided into two parts, a mainpole and a regulating pole; and the ratio between the direct and… … Fig. 214. General Electric Regulating Pole Rotary Converter normal voltage the main pole only is excited, while in order to raiseor lower the direct voltage, the regulating pole is excited so as toassist or oppose the effect of the main pole. Shunt=Wound Converter with Synchronous Booster. Fig.…
Electrical engineering
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