Modification of a commutator motor and its operation as a repulsion motor (1909)
Henry, Donald Alison, Nash, Charles Anson · leaf 60
rmatureshowing that this torque trpposes the normal operation of i I tlie macMne, Tlie maxim-um speed witii tlie armature cir-cuit open was readied at about 20°. Hie speed cLirve sliows a peculiar form in tliat itpossesses two maximuni points, one in tlie region of 15°and tlie otlier at about 80° .… … I i I I 27 The probable tiieoretical speed curve witli infinitely tliinbrushes is a smootli curve witli a maximum at about ?0° assliOTTn., Tlie curve of speed corresponding to the torqueproduced by the current in the coil short-circuited bytlie brush is shOwn. It will be a curve of the sam.e formas…
Commutation (Electricity) · Electric motors, Repulsion-induction · Theses
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