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调压式抽油机节能控制器是采用双向反并联可控硅进行控制的三相交流调压技术，通过检测电机电压与电流之间的相位差变化作为控制信号，控制晶闸管的导通角，从而改变电机的工作电压，使电机在空载或轻载时的工作电压低于额定电压运行，从而达到节能的目的。该节能器因其节能效果好，保护功能多，对电网污染小，受到现场人员的青睐。
Regulator pumping unit energy-saving controller is the use of bidirectional anti-parallel thyristor control of the three-phase AC voltage regulator technology, by detecting the phase difference between voltage and current changes as a control signal to control the thyristor conduction angle, So as to change the working voltage of the motor so that the working voltage of the motor under no load or light load is lower than the rated voltage to achieve the purpose of energy saving. The energy-saving device because of its energy-saving effect, protection and more pollution of the power grid is small, by field personnel of all ages.