基于多种互感器的电能计量器具准确性测试方法研究.pdfVIP

学兔兔 第50卷 总第573期 电测与仪表 VO1．5O No．573 2013年 第9期 Electrical Measurement Instrumentation Sep．2013 基于多种互感器的电能计量器具准确性测试方法研究 李晓朋，张莹，凌特利 (许昌许继软件技术有限公司，河南许昌461000) 摘要：对常规电磁互感器、模拟量输出型电子式互感器和数字量输出型电子式互感器的工作方式、原理和输出 类型等方面进行对比，提出了基于以上三种互感器的同源同平台的电能计量准确性测试方法。由于三种互感 器的电能计量形式完全不同，根据特点分别搭建计量支路，并对准确度测试模型的关键技术进行研究。通过实 验验证，最终提出的多种互感器电能计量系统校验模型，可完全满足对0．2级及以上常规电磁互感器、模拟量 输出型电子式互感器和数字量输出型电子式互感器的计量器具准确度测试。 关键词：模拟量输出型电子式互感器；数字量输出型电子式互感器；计量准确性；互感器测试 中图分类号：TM933 文献标识码：B 文章编号：1001—1390(2013)09—0059—05 Research on the Electric Energy Metering Accuracy Test Method Based on a Variety of Transformers LI Xiao—peng，ZHANG Ying，LING Te-li (XJ Software Technology Corporation Limited，Xuchang 461000，Henan，China) Abstract：Based on the comparison of the operation mode，the principle and the output types of conventional electro— magnetic transformer，analog output electronic transformer and digital output electronic transformer，this paper propo— ses the accurate test method on the basis of the same homology and platform of the three kinds of transformer．As the energy metering forms of the three mutual inductors are totally different，the metering branches should be separately constructed according to their features，and the key technique of accuracy test models also should be studied．Through the experiment，this paper puts forward the transformer calibration model of the electric energy metering system，which can fully meet the accuracy test of conventional electromagnetic transformer，analog output electronic transformer and digital output electronic transformer at 0．2 level and above． Key words：analog output electronic transformer，digital output electronic trans