Investigation of a Radiation-Resistant Induction Motor with Ring Stator Windings (By way of discussion)

The article addresses the development of a special-purpose motor designed to operate under the conditions of elevated temperature and radiation. The design of a multiphase induction motor armature having ring windings with ceramic insulation is considered. It is proposed to use the armature a new type for electric machines with a capacity of up to 20 kW. Unlike machines of the conventional design, the rotating magnetic field in the machine of a new type is produced using a specially arranged magnetic system. The presented armature design makes it possible to place the stator coils in assembling the magnetic system without damaging or deforming them, and the use of ceramic insulation will help increase the motor service life. The problem of how to produce a rotating magnetic field and distribute it in a magnetic system is considered. A prototype induction motor with ring windings has been designed and manufactured on the basis of a serially produced motor for general industrial use. At the first stage of the research, a digital experiment was conducted, the results of which were verified at the second stage using the prototype field tests.