一种电子式互感器校验系统的研究

A kind of electronic transformer calibration system research

电子式互感器校验关系到电网安全经济运行以及电能计量、贸易结算的公平性。本文简要介绍了电子式互感器的分类以及常用校验方法,在LabView软件环境下,采用零相位数字滤波器滤除白噪声,运用汉宁卷积窗的绝对值数字校验方法对两路数字信号实现准同步基波参数分数分析,实现了一种电子式互感器虚拟仪器校验方法。试验数据表明,该方式可用于检定0.2S级互感器,具有实际的应用价值。

Electronic Instrument Transforme calibration related to the safe operation of the grid and the energy measurement, trade settlement fairness. This article briefly describes the classification and electronic transformer calibration methods commonly used in the LabView software environment, using zero-phase digital filter to filter white noise signal, using Hanning convolution ab-solute calibration method for digital signal two quasi-synchronous digital signals to achieve the fundamental parameters score analy-sis, implementation of a virtual instrument electronic transformer calibration method. Experimental data show that the method can be used to test class 0.2S transformer, has a practical application value.