Chicago : [Popular Engineering Pub. Co.] · leaf 188
r and which move the little The combined field strength is conse- pointers around on the dials to indicate quently equal to the current times volts, or the watts that are consumed on our the number of watt-hours. Fig. 3 shows the watt-hour meter complete with front load. The armature consists of an… … FIG. 1. ARMATURE AND GENERATOR DISK OF A WATTMETER. ter. partly concealed, is the revolving ar- mature, the shaft of which drives the gears for the little pointers of the dials at the top. The induction type of watt-hour meter which is generally used on alternating current circuits consists, like…
Electricity
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