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 510
ingle-pole switches operated by an electricmotor, which is controlled from the switchboard. Each single-pole switch in Fig. 385 is mounted in a separate brick compart-ment. The oil is contained in long metal cylinders in order to reducethe amount of oil to a minimum. The long brass connecting… … Fig. 385. General Electric Three-Pole OilSwitch Operated by Electric Motor 461 444 ALTERNATING-CURRENT MACHINERY out through porcelain bushings in the bottoms of the cylinders, andthese lower rods are connected together in each compartment, thusmaking a double-break single-pole switch. The metal…
Electrical engineering
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