一种基于双接地状态回路电阻测试装置的研制及应用分析  

Development and Application Analysis of A Loop Resistance Testing Device Based on Double Grounding State

作　　者：王贵山[1] 李洪坤 李应宏[1] WANG Guishan;LI Hongkun;LI Yinghong(Liuzhou Bureau,CSG EHV Power Transmission Company,Guangxi Liuzhou 545000,China)

机构地区：[1]中国南方电网超高压输电公司柳州局,广西柳州545000

出　　处：《广西电力》2023年第3期71-75,共5页Guangxi Electric Power

摘　　要：为解决开关设备回路电阻测试中存在的感应电伤害、测量电流误差干扰等问题,本文在对开关设备处于双接地状态的导电回路电阻测试特点、测量方法、测量设备条件进行研究的基础上,提出了双接地状态测试导电回路电阻的方法,该方法消除了感应电伤害、测试电流误差干扰等问题,获得了准确可靠的测量结果,可有效提升开关设备回路电阻检测质量及效率。In order to solve problems of inductive electrical damage and measurement current error interference in the loop resistance testing of switchgear,a conductive loop resistance testing method in double grounding state is proposed based on the study on the testing characteristics,measuring methods and measuring equipment conditions of the conductive loop resistance of switchgear in double grounding state.The proposed method eliminates problems,such as the inductive electrical damage and the measurement current error interference,and obtains accurate and reliable measurement results,which can effectively improve the quality and efficiency of loop resistance testing of switchgear.

关 键 词：回路电阻试验 霍尔电流传感器 直流压降 双接地 

分 类 号：TM934[电气工程—电力电子与电力传动]