INFLUENCE OF THE QUALITY OF ELECTRICAL ENERGY AND TECHNICAL CONDITIONS OF INDUCTION MOTORS ON THEIR STATIC STABILITY.

The paper provides insights into the research of static stability of induction motors at a low-quality supply voltage and an unsatisfactory technical condition of the motor. The dP/ds criterion of static stability of the induction motor was used to assess its static stability. The results obtained show that a non-symmetric voltage has a negative influence on the static stability of the induction motor by decreasing the component of a positive-sequence voltage. The non-symmetric voltage is considered the most dangerous when the induction motor operates in the mode, close to the margin of a static stability loss. [ABSTRACT FROM AUTHOR]