Abstract
The authors and the others devloped 15kW revolving armature type commutatorless motor deriving high mag-netic loading. At first we manufactured the commutatorless motor with inter-pole and compensating windings having the construction which attached and taked out inter-pole easily as an experiment and recognized by the experiment that this motor was improved fairly in the aspect of over load torque and the effect of inter-pole did not reach a little to the effect of compensating windings in the aspect of the spare angle improvement.
Next time we manufactured the compound commutatorless motor (with compensating windings) as an experiment. And it was verified by the experiment that high output of 190% power was derived by this motor and compensating windings did not needed, if series field windings were provided. By the characteristics analysis and the simulation, we recognized that the main factor which this high output power was realized was that the leakage reactance X_??_ of this motor was half degree value of old commutatorless motors. Furthermore, we report this effect including the experimental data.
