International Library of Technology · Scranton, International Textbook Co. · leaf 334
PPARATUS. 2707 phase transformers are employed in each case, their pri-mary coils being p,p,p, and their ^^ 7 corresponding sec- ^^ ^^ ondaries s, s, s.In the first case,Fig. 1559, both theprimaries and sec-ondaries are con-nected up A, andthey would, there-fore, transformfrom 1,000 voltsprimary to… … FIG. 1560. Main. u i °-« f: %p fe •: >0 1 fc kl |p ; ^
Electrical engineering
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