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 505
threaded nuts n n. On accountof the large current to be carried, extra large contact surfaces areprovided between switch blades and clips, as seen in the figure. Damage to switch-blades and clips, due to arcing, is reducedto a minimum by providing carbon blocks which make a connectionin parallel… … Fig. 379. Half Section of Over-Load Type of Circuit Breaker—Closed Circuit Breakers. In Fig. 379 there is shown in elevation andhalf section a plain overload type of circuit breaker for either direct-or alternating-current circuits up to 600 volts. Fig. 380 is a generalview of the same single pole…
Electrical engineering
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