New design decisions for energy-saving squirrel-cage adjustable induction motors
Four new models of energy-saving squirrel-cage adjustable induction motors in the electro-mechatronic version are presented in the paper, which are specifically designed for the operation in the system of the electric drive with a thyristor voltage regulator (TVR). Rated specifications are given, and the operation of modern electric drives on the basis of asynchronous electric motors with frequency converters (FC) is analyzed, their advantages and disadvantages being given. The paper states that when new electric engines are used in electric drives with TVR, the latter may be not less effective than the frequency ones, with a number of disadvantages inherent to frequency electric drives being, however, eliminated.