外部电源产品的谐波电流测试

Harmonic Current Testing for External Power Supply

阐述外部电源产品谐波电流的产生机理,介绍《电磁兼容限值第1部分:谐波电流发射限值(设备每相输入电流≤16 A)》(GB 17625.1—2022)标准中关于外部电源的测试要求。通过理论分析和试验验证,证明为不同类型设备供电的同一外部电源产品谐波电流测试结论存在差异,并给出外部电源产品的认证监管要求。

This paper expounds the generation mechanism of harmonic current of external power supply products,and introduces the electromagnetic compatibility limit part 1:harmonic current emission limit(input current of each phase of equipment≤16A)"(GB 17625.1—2022)standard on the test requirements of external power supply.Through theoretical analysis and verification test,t he different experimental results of harmonic current is proved,and the certification and regulatory requirements for external power supply products were provided.