Patent
Methods and arrangements for testing induction motors
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TLDR
In this article, the shafts of induction machines are coupled together such that they will turn in the same direction through a motor or motor and gearbox combination, which enables the torques in the shaft of the motors being tested to be balanced.Abstract:
Method apparatus Apparatus for testing induction machines by the back-to-back technique. The shafts of the motors are coupled together such that they will turn in the same direction through a motor or motor and gearbox combination. The motor or motor and gearbox combination enables the torques in the shafts of the motors being tested to be balanced.read more
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Patent
Method of testing induction motors
TL;DR: In this paper, a method is provided for testing induction motors, particularly single-phase fractional horsepower motors, which enables routine testing of all motors in production for both starting and running torque and other desired characteristics.
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Improvements in or relating to methods of and apparatus for testing dynamo-electric machines
TL;DR: In this paper, a method of testing dynamo-electric machines comprises connecting a pair of similar machines electrically to a supply and mechanically through a differential gear, the gear being driven to cause one machine to act as a motor and the other as a generator.