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 171
arc is thus counteracted. The composition resistors and the gap cylinders are mountedin pairs on a porcelain base, and complete units are arranged within weather proofwooden boxes as indicated. For two pole arresters, one unit is mounted on the back ofthe box. For three pole and four pole… … ej - - - s Horn Gap .Ar-resters.—A horngap arrester con-sists essentially oftwo horn shapedterminals formingan air gap of vari-able length, onehorn being con-nected to the lineto be protectedand the other tothe ground usuallythrough series re-sistance as shownin fig. 2,378. Ques. Howdoes the…
Electrical engineering
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