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 190
unchallenged, ando busily at it on a large scale. 1,44S HA WKINS ELECTRICITY Transformer Operation with Grounded Secondary.— The operation of a transformer with a grounded secondary hasbeen approved by the American Institute of Electrical Engineers,and by the National Board of Fire Underwriters.… … Fig. 2.017.—Moloney pressure transformer adapted for switchboard work in connection withvoltmeter?, 3, etc., in sizes from 25 to 500 watts. In case of a breakdown without the secondary grounded,any one touching a part of the low tension system, such as alamp socket, might receive the full high…
Electrical engineering
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