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 185
or transformers above 33,000 volts. Both oil cooled and water cooled types are available for all voltages,being restricted in this respect only by the limitations of transmission facilities. Ques. How are transformers connected for four wirethree phase distribution? Ans. When the secondaries of… … _ £ 3 -: - - - ~ ■- - z SS 2 3\2 2P fc £S 2 ... ij* go f-- = T £ ti S = - - - — ■ 0 s = - 5 ; ~ : - d -3 03.S -j - - - - - • m » a - - = >-_ — ■g =,§3.3 -?.■-- I — _ — —*~ ~ ~ z - - --- - - * - ~ — - E--=- = -! ----- § ■= 3 connected, a fourthwire may be run fromthe neutral point,thus obtaining…
Electrical engineering
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