电磁兼容性(EMC).测试和测量技术.供电系统及所连设备谐波和间谐波的测量和仪器仪表的通用指南-General guidelines on electromagnetic compatibility (EMC). Testing and measurement techniques. Power supply systems and equipment and even harmonics and interharmonics measurements and instrumentation o

用VB做的，电力谐波限值计算工具。有电能质量测试中很有用。-Power the harmonic limit calculation tools with VB. Power quality test useful.