电子式电压互感器的比较与研究  

Research and Compare Among Several Electronic Voltage Transformers

作　　者：彭春燕[1] 

机构地区：[1]广东电网公司韶关供电局

出　　处：《电子世界》2014年第21期90-91,共2页Electronics World

摘　　要：随着数字化变电站的逐步实现，电子式互感器取代传统的互感器已经成为一种必然趋势。本文分析了传统电压互感器存在的一些问题；对目前国内外主要的电子式电压互感器作分析比较，给出了影响其测量精确性和可靠性的因素。在此基础上讨论了一种基于检测电容电流型电子式电压互感器的新方法，其具有结构简单和信号传输方便等优点。With rapid development of digital substation,it has become inevitable trend that electronic transformer would take the place of traditional transformer.This paper discussed defects of traditional transformer,and some major electronic voltage transformer studied abroad and home were compared with each other also,factors affected those EVT’s metering accuracy and stability were figured out.On the basis above,a new method of electronic voltage transformer based on detecting current of high voltage capacitor,was proposed.This EVT had simple structure,high measuring accuracy and convenient signal transmitting access.

关 键 词：电压互感器 铁磁谐振 电子式电压互感器 光学电压互感器 

分 类 号：TM451[电气工程—电器]