Electrical instruments and testing; how to use the voltmeter, ohmmeter, ammeter, potentiometer, galvanometer, the Wheatstone bridge, and standard portable testing sets (1907)
Schneider, Norman H. (Norman Hugh), Hargrave, Jesse · New York, Spon & Chamberlain; [etc., etc.] · leaf 184
R Y v Rr Then -: 5 = —, Y = i4 + /? r A + R In fault testing the negative pole of the batteryis preferably connected to the cable. If the posi-tive pole be applied and there be a bared spot inthe insulation, this bared spot will be acted on bythe current, and apparently improved, but thechloride of… … Fig. 92. 162 ELECTRICAL INSTRUMENTS. One end of the cable conductor is connected to agalvanometer the second terminal of the latterbeing grounded through a battery. The cable is wound from one reel to the other,the slack passing through the water in the tank.As soon as a fault reaches the wTater,…
Electric testing · Electric apparatus and appliances
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
