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 384
ordoes not have to go to his panel and close circuit breakers, etc.,after starting his work. The diagram of connections, Fig. 73, showsjust how the various devices occur in the circuit; it will be seenthat the energizing coil of the magnetic contactor is in parallelwith the arc. When the series… … Fig. 71. Miscellaneous Pipe Welds with Light TubingCourtesy of C & C Electric and Manufacturing Company as soon as the arc is drawn, however, that path becomes of higherresistance and the coil is energized enough to close the contactor andcut out starting resistance. This allows just the right…
Electrical engineering
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