At present dynamic voltage restorer (DVR) is an effective device to deal with the voltage sag. Exact detection of voltage sag characteristics is the precondition of DVR's normal working.

动态电压恢复器(DVR)是目前解决供电电压凹陷问题的有效装置，对电压凹陷特征量的准确检测是DVR正常运行的前提。

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Because TWC has the oxygen storing function, the two oxygen sensors have different voltage response curves in their normal working conditions, otherwise their voltage response curves are similar.

因为TWC具有储氧功能，其工作正常时两个氧传感器的电压响应曲线不同，否则二者的电压响应曲线形状相近。

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By monitoring both voltage and power, the unit measures the normal working load, then calculates and sets an automatic shutdown point for detected power changes.

通过监测动力电压，该装置先对正常的工作量进行测定，然后依据被测动力发生的变化，估计并设定一个自动的关闭点。

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