供电网电压畸变及谐波电流限值导出原则

Distortions of the Supply Voltase and Derivation Principle hr Harmonics Current Limits

供电网电压畸变对电气设备安全运行危害甚大，本文以谐波电流限值来描述不同容量的设备兼容水平之间的对应关系，对导出谐波电流限值对制造商和单台设备的监控有指导意义。

The distortions of the supply voltage have largeendangerment for the electrical equipments safe work. Thecompatibility levels described with harmonics current limitsbetween different power equipments have well relation ofcorrespondence. The derived harmonics current limits is re-al guide to manufacturers and supervisory and control ofsingle equipment.