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 80
ic Ma-chinery. For the higher voltages on alternating-current boards, the meas-uring instruments are no longer connected directly in the circuit,and the main switch is not mounted directly on the panel. Current 66 POWER STATIONS 57 and potential transformers, as called for in the lists given in… … Fig. 26. Three-Phase Oil Switch with Oil Container Removed These transformers are mounted at some distance from the panel,while the switches may be located near the panel and operated by asystem of levers, or they may be located at a considerable distanceand operated by electricity or by compressed…
Electrical engineering
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