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!
《JJG313-2010测量用电流互感器检定规程》指出：
1、额定二次电流5A，额定负荷7.5VA及以下的互感器，下限负荷由制造厂规定；制造厂未规定下限负荷的，下限负荷为2.5VA。
2、额定负荷电阻小于0.2Ω的电流互感器的下限负荷为0.1Ω。
3、制造厂规定为固定负荷的电流互感器，在固定负荷的±10%范围内误差应满足检定规程规定的误差限值的要求。
作为一般要求，电流互感器的实际二次负荷一般取额定二次负荷的25%~100%。
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