The principle of main parameter of the with the change of source frequency were given on the base of analyzing the equivalentcircuit of induction motor.
在感应电动机等效电路的基础上，分析了当电源频率发生改变时，等值电路中主要参数的变化规律。
2
The equivalentcircuit for model parameter calculation is also given, so a calculation for complicated mechanism could be simplified to a electrical circuit calculation.
同时作出了模型参数计算的等效回路图，将复杂机械机构计算简化为电回路计算。
3
A new method for equivalentcircuitparameter extraction of capacitor is proposed, and the characteristic of capacitor is discussed according to the extracted results.