几种电子式互感器校验方式的研究和比较

Study and comparison on several different electronic transformer calibration methods

根据电子式互感器输出信号的不同,可分为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两大类型,分别对适用两种电子式互感器的校验方式从理论基础和实现方式等方面进行分类。通过对各种校验方式的结构、理论依据、可操作性等方面以及应用前景的研究、分析和对比,分别指出了它们相应的优点和缺点。最后分别给出了适用于模拟量输出型和数字量输出型电子式互感器的校验方式,并提出了利用标准电子式互感器作为标准器的电子式互感器校验方式是电子式互感器校验方式最终发展目标的观点。

According to the different output signals from electronic transformer, this paper classifies electronic transformers into analog output and digital output. And this paper also has made the classification about calibration methods applied to these two kinds of electronic transformers in theory and according to their implementing modes. Through the research, analysis and comparison on the various calibration methods＇ structure, theoretical basis, the operation ability and application forecast, this paper hereby points out their respective advantages and disadvantages. At the last part of the paper, the applicable calibration methods applied to analog output and digital output electronic transformers are provided. In addition, this paper brings forward the point that using the standard electronic transformer as standard＇s electronic transformer is the final development objective of the electronic transformer calibration method.