±800 kV云广直流输电系统串联双阀组换流变分接开关125℃闭锁调整分析及处理
Analysis and Dispose of Converter Transformer OLTC 125°C Blocking in Series Dual Groups of Yunnan-Guangdong ±800 kV DC Transmission Project
作者: 陈灿旭 * , 刘茂涛 , 宋述波 :中国南方电网超高压输电公司广州局,广州; 张志朝 :中国南方电网超高压输电公司,广州;
关键词: 特高压直流工程; 换流变分接开关; 125℃闭锁调整; UHVDC Project; OLTC of Converter Transformer; 125°C Blocking
摘要:Abstract: Yunnan-Guangdong ±800 kV DC transmission project is the first project which uses vacuum on-load tap- changer in all DC transmission projects of CSG. The paper introduces the operation of vacuum on-load tap-changer firstly, then summarizes and analyzes the cause of converter transformer OLTC 125°C blocking in Yunnan-Guangdong ±800 kV DC transmission project, and analyzes its risk thoroughly, at last, some effective measures which can depress the risk of blocking both pole in Yunnan-Guangdong ±800 kV DC transmission project are given.
文章引用: 陈灿旭 , 刘茂涛 , 张志朝 , 宋述波 (2013) ±800 kV云广直流输电系统串联双阀组换流变分接开关125℃闭锁调整分析及处理。 智能电网, 3, 22-27. doi: 10.12677/SG.2013.31004
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