实验结果表明该节能控制系统利用就地电容补偿原理，降低了抽油机的总损耗，提高了工作效率和功率因数，具有较好的节能效果。

Experiments result shows that this control system increase work efficiency and power factor by applying nearby capacitance compensation theory. The control system processes fine saving energy effect.

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输出功率绝不能等于输入功率，因为总存在着损耗。

The output power can never equal the input power, for there are always losses.

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