Electrical machinery; a practical study course on installation, operation and maintenance (1921)
Annett, Fred Anzley · New York [etc.] McGraw-Hill book company · leaf 127
Fig. 121 Fig. 122 Figs. 121 an 1 122.—Show how an unknown resistance may bemeasured with a voltmeter. Measuring Insulation Resistance.—Frequently it is neces-sary to determine the insuhition resistance of electricalapparatus—for example, the insulation resistance of anarmature. This measurement is…
Electric machinery
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