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 100
e only is known and wherethere are two other wires which may be used to complete theloop. It is not necessary that the resistance of the faulty wireand the length and resistance of the other wires be known.Figs. 601 to 604 show the connections and method of testing. EXAMPLE.—All the wires in a… … Figs. 599 and 600.—Varley loop method of fault location with Leeds and Northrup fault finder.This method may be used as a check on the Murray methods. Connect the faulty wire to 1,and measure the resistance of the loop. Then throw switches as shown in the fig. 600.Let: a = resistance to fault, d =…
Electrical engineering
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