Ideal energy saving alternating current electromotor

The utility model relates to an ideal energy saving alternating current electromotor, wherein a capacitor box (2) is installed on an outer shell of an existing alternating current electromotor (1), a capacitor (3) matched with the electromotor is installed in the capacitor box (2), a power transmission wire (4) of the capacitor and a resistor (5) are connected in parallel and then are connected into a stator coil of the alternating current electromotor, when the electromotor is electrified for operation, and the capacitor and a stator coil of the electromotor generate current resonance, thereby greatly improving the power factor of the electromotor, not only effectively reducing the total current of the electromotor, but also keeping the active power of the electromotor consistent, lowering the electricity power consumption of the electromotor, and embodying the 'energy-saving and discharge reduction' policy advocated by the nation. The ideal energy saving alternating current electromotor has simple and reaso