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 168
parate lighting circuitsare run out from the switchboard for supplying the whole plant orshop, and, as a rule, leave the switchboard as three-phase circuits.Fig. 35. Since the load is all single-phase, there is bound to be someunbalancing, which it is desirable to know. The equipment will then… … I f t 3 PHASE POWER FEEDER 3 PHASE LIGHTING CIRCUIT Fig. 35. Wiring Diagram for Three-Phase Feeder Circuit the three ammeters are essential. If, as is usually the case, thechanges are very slow, one ammeter and a switch for reading allthree phases are just as good. The watt-hour meter is needed…
Electrical engineering
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