Twin-engine asynchronous thyristor electric lifting mechanisms.

Abstract

The method of calculating the dependence of conductivity of the external circuit of the rotor of the asynchronous motor (AD) on the frequency of current passing through it is given for a given mechanical characteristics of the start of the AD. An example of the calculation of the family of frequency characteristics of conductivity in this circuit on the mechanical characteristics with a constant torque of 1,0; 1.5; 2,0 times the rated torque (for AK 51-4).