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 178
ontains11 such switches. If these simple andcrude switches be replaced by moderncircuit breakers, operated by solenoidscarrying small control currents, there results one of the essentialfeatures of the Sprague-General Electric Control. Before taking upa study of the circuits in this system it is… … Fig. 59. Sprague-General ElectricContactor 153 58 ELECTRIC RAILWAYS Contactors. The circuit breakers in the form especially de-veloped for traction work are called contactors. Such a contactoris shown in Figs. 59 and GO. It consists of a coil of fine wire sur-
Electrical engineering
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