International Library of Technology · Scranton, International Textbook Co. · leaf 336
ngs and avoid the use ofsuch heavy conductors in the coils. SPECIAL USES OF TRANSFORMERS. 4027. Two currents differing in phase by 90° may betransformed into three differing by 120°, by means of anarrangement of specialtransformers. Fig.1563 shows the princi-ple of the device fortransforming from… … Fig. 1563.The secondary coil of A^ that is, /3 e c^ has —— times as many turns as the secondary of B. The relation of the secondary E. M. F.s generated in such an arrangement is shown in Fig..1564; b d \s the pressure gener-ated in the secondary of B, and^ ^ is that generated in the sec-ondary of…
Electrical engineering
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