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 215
these switches. The pots are 189 92 SWITCHBOARDS mounted one back of the other in compartments, the contacts movedownward to close the switch and are operated by a motor mechan-ism on top of the celL This mechanism does not operate theswitch directly but through large coil springs which are… … Fi. 59. General Electric Triple-Pole Single-Throw 15,000-VoltOil Break Switch Operated by MotorCourtesy of General Electric Company have the main contacts outside the pots, but the arc Is brokenunder the oil. Pneumatically-Operated. For very high voltages, switches similarin action to the ones in…
Electrical engineering
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