Calculation of the characteristics of an asynchronous motor, frequency-controlled by the minimum current.

Abstract

A biquadratic equation is proposed, which allows one to determine the critical absolute slip of an induction motor with its current minimum control, taking into account the variable saturation of the main magnetic circuit of the motor. To calculate the adjustment characteristics, we consider a graphical method based on solving the nonlinear vector conduction equation of the T-inverse motor equivalent circuit, reduced to the nominal frequency. And p. 3. bibl.5.