【摘要】 换流变是换流站的主要设备,换流变的运行情况对直流输电的可靠性至关重要。介绍了国家电网公司各换流站内换流变配置以及基本运行情况,介绍了换流变运行中出现的相关典型故障:包括非电量保护误动、乙炔含量过高,分接头不一致等问题,以及国家电网公司根据这些故障情况分别采用了一系列措施来保证换流变的正常运行。更多还原

【Abstract】 As the main equipment in the converter station,the converter transformer′s operation is of the most importance to the reliability of DC transmission.The configuration and operation situation of converter transformers in every converter station of State Grid Corporation of China(SGCC) are introduced,and typical faults occurred in the converter transformers are analyzed,including maloperations of non-electrical protections,high content of acetylene,and asynchrony of taps.Measures that SGCC adopted to solve the faults are recommended.更多还原