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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 52

An illustration from 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, leaf 52
ngs down like ahinge below the magnet-poles. When the current exceeds the properstrength, the armature is lifted by the attraction of the magnet andpresses against little contact-pins, short-circuiting the release magnetholding the rheostat arm, whereupon the arm at once flies back tothe off… … ^smmsmMy& Fig. 23. Starting-Box Connections. 41 32 DIRECT-CURRENT MOTORS the necessary protection but saving the annoyance of frequentlyblown fuses. Fig. 23 shows the connections of a rheostat equippedwith an overload release of this type. OPERATION OF MOTOR To Start the Motor. In starting the…

Electrical engineering

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