高海拔地区±800kV换流变现场局部放电试验技术研究及应用  

Research on the Field Test Technology for the 800kV Converter Transformer Local Discharing in High Altitude Area

作　　者：岳海龙 王生杰 包正红 王理丽 林万德 陈尧 李吉存 马永福 石径 郑勇 YUE Hailong;WANG Shengjie;BAO Zhenghong;WANG Lili;LIN Wangde;CHEN Yao;LI Jicun;MA Yongfu;SHI Jing;ZHENG Yong

机构地区：[1]青海电研科技有限责任公司,青海西宁810016 [2]国网青海省电力公司电力科学研究院,青海西宁810008

出　　处：《青海电力》2020年第4期42-45,共4页Qinghai Electric Power

摘　　要：基于现有±800 kV青豫特高压直流输电工程±800 kV换流变压器主要参数为基础,提出基于变频并联谐振原理试验装置,对高海拔地区±800 kV换流变压器现场局部放电试验试验电压、试验回路电晕抑制进行计算分析;同时提出试验回路设备距离及扩径导线选用参数,对现场局部放电检测试验中防止电晕采取可行性措施,以保障高海拔地区±800 kV换流变压器现场局部放电检测试验顺利实施。Based on the major parameter of 800 kV converter transformer of the 800 kV Qin Yu Ultra voltage DC power transmission project,a new test device based on frequance conversion parallel resonant principle is set up and the test voltage of local discharging test for 800 kV converter transformer in high altitude area and the corona inhibition of test circuit are calculated,and then the distance between the test devices,the parameters of the expanded diameter conductor and the measures to prevent the corona during the test are proposed for easy implementation of the 800 kV converter transformer local discharging test in high altitude area.

关 键 词：高海拔 ±800 kV换流变压器 局部放电测量 防止电晕措施 

分 类 号：TM42[电气工程—电器]