Dynamic characteristics of rheostats and methodological principles of their synthesisthermistors of the starting system of electric motors
Abstract
Dynamic characteristics of rheostats and methodological principles of their synthesisthermistors of the starting system of electric motors
Incoming article date: 30.08.2022The article gives a brief analysis of thermal processes occurring during the start-up of an electric motor. Mathematical relations modeling the distribution of thermal energy in the thermistor during the process of starting the DC motor are presented. Graphic dependences are presented, which allow to make arrangement of thermoresistors for the starting rheostat and to determine parameters of the starting rheostat obtained in this way. Application of the starting rheostat made on the basis of thermistors, provide an optimal starting of a DC motor.
Keywords: control gears, thermistor, starting rheostat, DC motor, temperature, dynamic characteristic, form of starting current