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 309
ystem and b= Ecos 30 a=c = Esm 30= But the ratios of the windings were so proportioned that this is true. Hence the e. m. f. s are 120 degreesapart and result in a balancedthree-phase circuit. A clear idea of the Scott trans-former may now be obtained asfollows: Two similar cores havesimilar… … Fig. 234. Complete Connections of ScottTransformer 274 ALTERNATING-CURRENT MACHINERY 261 Fig. 233), and the other end of which is connected to the middlepoint of the secondary winding a c, which is wound on the other core.The terminals of the winding a c are connected to the remainingtwo of the…
Electrical engineering
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