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Electrical engineer's pocket-book: a hand-book of useful data for electricians and electrical engineers (1901)
Foster, Horatio A. (Horatio Alvah), 1858-1913 · New York, D. Van Nostrand co.; London, E.& F.N. Spon, ltd. · leaf 74
n r^-(f-l). MEA§rKIIIfG THE IlillATIOlf RESISTANCE ©e MOTORS. Where motors are connected to isolated plant circuits with known highinsulation, tbe formula vised for insulation of dynamos applies; but wheretbe motors are connected to public circuits of questionable insulation it isnecessary to first… … Here, as before, the insulation total connected devices If r = total resistance of circuit and motor in multiple to ground, and r,is the insulation of the circuit from ground, then X, the insulation of the motor will be X= — . MEASUREMENT OF THE RESISTANCE OF THEHITMAN BODY. The jars jj of the…Electrical engineering
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