串联式电容运转电动机的实验法电磁设计

The Experimental Method for Electromegnetic Design of Tandem Capacitor-Run Motor

介绍了对称二相电源和对称二相电动机及其对称运行的条件,分析了串联式电容运转电动机的电路和相位关系及该电动机与对称二相电动机等效对称运行的条件,推导出串联式电容运转电动机对称运行时主副相的匝比和电容器的电容量与等效的对称二相电动机的相阻抗的关系,从而得到以测定对称二相电动机的相阻抗的实验确定其等效转化的串联式电容运转电动机主副相的匝比和电容器的电容量的方法。该电动机的设计调整较容易且准确,给出了计算实例。

The condition of symmetrical run for two-phase power supply and symmetrical two-phase electromotor were introduced. The relation between electrocircuit and phase for series connection permanent-split capacitor motor, and the condition of equivalent symmetrical run for series connection permanent-split capacitor motor and symmetrical two-phase motor were analyzed. When series connection permanent-split capacitor motor symmetrical run, the relation between the rati- o of winding and capacitance and winding impedance of symmetrical two-phase motor were educed. The method to deter- mine winding impedance of symmetrical two-phase motor and invert to the ratio of winding and capacitance of series con- nection permanent-split capacitor motor were found, which made the design easy and accurate to adjust. The calculating ex- ample and formula derivation were provided.