quality of electric energy

And it is the key to improve the quality of electric energy, energy saving and environmental protection and control of harmonic pollution.

而控制谐波污染又是提高电能质量、节能环保增效的关键。

Application of high power electronic elements in power system makes current and voltage waves distorted and degrades the quality of electric energy.

大功率电力电子器件的应用，使得电网电流或电压波形产生畸变，进而使系统的电能质量下降。

The quality and performance of hydro-turbine governors will influence the quality of electric energy and the safety operation of hydropower stations.

水轮机调速器的品质与性能直接影响电能的品质和水电站的安全可靠运行。