PT冲击电流抑制装置的研究与设计  

Research on PT Impulse Current Inhibition Device and Its Design

作　　者：袁超[1] 徐近龙[2] 张劲松[1] 王建刚[2] 周阳[2] YUAN Chao;XU Jinlong;ZHANG Jinsong;WANG Jiangang;ZHOU Yang(Jiangsu Frontier Electric Technology Co.,Ltd.,Nanjing 211102,China;Suzhou Power Supply Company,Suzhou 215004,China)

机构地区：[1]江苏方天电力技术有限公司,江苏南京211102 [2]苏州供电公司,江苏苏州215004

出　　处：《机械制造与自动化》2018年第2期193-195,共3页Machine Building & Automation

摘　　要：近年来,江苏配电网中安装了许多相控式消弧线圈,但在系统中发生单相接地故障时,消弧线圈可控硅有时无法正常导通投入补偿,导致PT多次损坏。研究设计了一种PT冲击电流抑制装置,利用仿真软件展现了投运效果,并从装置原理、结构设计和保护控制逻辑等方面进行介绍。In recent years,multiphase control arc suppression coil is installed in the substations in Jiangsu.When single-phase earth fault occurs in the system,the arc suppression coil SCR is hard put to work sometimes,thus leading to PT damage many times.This paper studies a kind of PT impact current suppression device and uses the simulation software to show its operation effect,and then,introduces its principle,structure design and protection control logic.

关 键 词：接地电阻 冲击电流 电压互感器 消弧线圈 保护控制 

分 类 号：TM76[电气工程—电力系统及自动化]