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 27
If the greatest economy in copper were aimed at, athree phase system would be used. HAWKIXS ELECTRICITY The purpose of fig. 2.141 is to show the importance of the trans-former in giving a flexibility of voltage, by which the cost of the line isreduced to a minimum. Ques. Does the saving indicated… … Fig. 2.142.—Single and twin circuit poles (Southern Power C: n circuit po.- right is used for 11.000 vo!t circuits, while the single circuit poles at the left carry 44,000volt conductors, being used on another division for 100,000 volt line. Every case of electric transmission presents its own…
Electrical engineering
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