Hawkins electrical guide. Questions, answers & illustrations; a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833- · New York, T. Audel · leaf 55
standard transformers having the ratios10 : 1, and y : 1. Ques. What names are given to the two transformers? Ans. The one having the 10 :1 ratio is called the maintransformer, and the other with the 8.66 :1 ratio, the teasertransformer. 1.574 HAWKINS ELECTRICITY In construction, the transformers… … Fig ° 177 Three phase to two phase transformation with three star connected transformers. Two of the secondary windings are tapped at points corresponding to 57.7 % of full voltage;these two windings are connected in series to form one secondary phase of voltage equalto that obtained by the other…
Electrical engineering
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