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 70
the pole, and hence of the commutatingfield, is proportional to the armature current, and this is exactly whatis wanted for good commutation. Applied to motors—since com-mutation is practically independent of the main field—the use of thecommutating pole allows the main field to be weakened much… … Fig. 37. Interpole Motor.Electro-Dynamic Company, Bayonne, N. J. not only can be obtained with 57 48 DIRECT-CURRENT MOTORS i t ■t- ) ^7 ^ Si T1 «7^ f •• 1 ) 1 r Y ■If Z50 Fig. 38. H. Ward Leonard Multi-Voltage System, 1893. MULTI=VOLTAQE SYSTEMS When a generator is to supply only one motor, the…
Electrical engineering
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