电压互感器二次回路接地查找新方法  

New Method for Searching Grounding of Voltage Transformer Secondary Circuits

作　　者：王献志[1] 任江波 范景哲 

机构地区：[1]国网河北省电力公司电力科学研究院,石家庄050021 [2]河北电力调度控制中心,石家庄050021

出　　处：《河北电力技术》2014年第1期40-42,共3页Hebei Electric Power

摘　　要：比较传统电压互感器二次回路接地点查找的几种方法,提出一种能可靠、快速识别电压互感器二次回路接地情况的新检测方法。介绍该方法的基本原理及应用该方法对电压互感器二次回路N600网络一点接地、多点接地进行判断和查找的步骤,并通过实例验证该方法的有效性。This paper expounds the harm of multipoint grounding in secondary circuit of voltage transform,compares the several traditional methods for searching the erathding points,proposes a new method for searching multipoint grounding of voltage transformer secondary circuits.introduces the basic principle of the method,analyzes how to judge and search the voltage transformer secondary circuit N600network single point grounding and multipoint grounding,and validates the validity of the method through the application example.

关 键 词：电压互感器 二次回路 多点接地 单点接地 继电保护 

分 类 号：TM31[电气工程—电机]