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 257
e divided CONSTR UCTION OF AL TERN A TORS 1,245 into two parts, and the four parts are connected up in cyclicorder, the end of one to the beginning of the next, so as to form asquare, the four corners of which are connected to the fourterminals a, b, a , b, as shown in fig. 1,545, or in the case… … PlG. 1,546.—Diagram of three phase star grouping, commonly called Y grouping owing to itsresemblance of the letter Y. The current in each main is obviously equal to the currentin each phase winding, but the terminal pressure is the vector sum of the pressures in thecomponent phase windings, that…
Electrical engineering
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