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 103
s possible like those under which theyare to be used. The construction and principle of induction indicating instru-ments is illustrated by the Type F induction voltmeter made bythe Westinghouse Electric Company for switchboard service, shownin Fig. 83 with its case and dial removed. The view shows… … Fig. 83. Westinghouse InductionVoltmeter 86 ALTERNATING-CURRENT MACHINERY 77 zero temperature coefficient, the object of which is to make thereadings of the voltmeter more nearly independent of frequency.The secondary coil of the current transformer is wound directlyunder the primary coils and…
Electrical engineering
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