基于电子式互感器在线监测数据的绝缘诊断技术研究

Research on the Insulation Diagnosis Technology Based on the On-Line Monitoring Data of Electronic Transformers

摘要: 目前，电子式互感器因其性能优越而得到大规模的使用。国家电网公司也力争在“十三五”期间解决数字化计量准确性及可靠性问题。对具有数字计量一次设备部署在线监测系统是一种直观得知设备绝缘情况的手段。而之前所部署的在线监测系统缺乏对采集回数据进行统计判断的研究，以至于不能通过监测数据来掌握一次设备的实时情况。本文将着重介绍一种基于在线监测数据的绝缘诊断技术，利用统计分析的原理来判断一次设备的绝缘及寿命预测问题。

Abstract: At present, the electronic transformer has been used in large scale because of its excellent per-formance. State Grid Corp will strive to solve the problem of reliability and accuracy of digital measurement in the “13th Five-Year” period. On-line monitoring system of the digital measure-ment primary equipment is a kind of methods measuring the insulation condition of equipment. And the deployment of the on-line monitoring system was lack of statistical judgment for the data collection before, so that the real-time situation of a device cannot be mastered by monitoring data. In this paper, we will focus on a kind of insulation diagnosis technology based on on-line monitoring data, and use the principle of statistical analysis to determine the insulation and life prediction of the equipment.