To enhance the quality of manufacturing as responsibility, build national brand of measurement!
To enhance the quality of manufacturing as responsibility, build national brand of measurement!
如果仅仅用于变频器输出电压的基波测量，一般可以满足。
如果需要分析谐波或需要测量功率，一般不能满足要求。
不能用于分析谐波的原因是霍尔电压传感器带宽较窄，一般低于5kHz，较高的可达15kHz，不能满足变频器输出PWM信号丰富的高次谐波的测量带宽需要。
不能用于功率（准确）测量的原因是霍尔电压传感器一般不提供相位误差指标，并且实际相位偏移较大，对功率测量的准确度有较大影响。
作者：AnyWay中国
湖南银河电气有限公司 www.vfe.cc
China's leading enterprise in variable frequency power measurement and metering
National variable frequency power measuring instrument (metering station) founder
Research and development unit of national variable frequency power metering standard