Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 302
likely to be used inside of a building. If desired,a voltmeter could be obtained with three connections having threescales, the lowest scale of which would be used for testing insulationresistances. Before starting a test, all of the fuses should be inserted andswitches turned on, so that the… … Fig. 137. Connections for Voltmeter Te-stBefore Circuit is Connected meter the electromotive force of the entire group of cells. Thiseomiection is shown in Fig. 137. Immediately after this has been done, the insulation resistanceto be tested is placed in cir-cuit, whether the insulation tobe tested…
Electrical engineering
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