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 220
ry to raise the plunger far enough to trip the breaker can beregulated. Since the force applied to the plunger determines thepressure in the bellows, and therefore the time of operation, thedevice will operate in inverse proportion to the current. For definitetime, the plunger compresses a spring… … Fig. 61. Double-Pole Overload and Reverse-Current Circuit BreakerCourtesy of the Cutter Company In the disk time limit device, the action depends on the factthat two surfaces coated with oil and pressed together can not beseparated immediately. With the same force applied, the twosurfaces will…
Electrical engineering
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