摘要
换流变压器阀侧套管承接着换流变压器阀侧出线内外绝缘,是支撑换流变压器长期稳定运行的核心元件。针对在运直流输电工程中阀侧套管发生的质量缺陷和现有行业标准的不足,通过调研目前国内直流输电工程3种典型绝缘结构换流变阀侧套管的技术要点,系统归纳了换流变阀侧套管的绝缘结构设计、耐热载流能力设计及绝缘材料选择、与阀侧引线对接配套、密封结构及机械强度设计、与阀厅封堵组合、户外端金具连接匹配等6项设备选型技术要点,提出了阀侧套管排产过程的品质控制针对性措施建议。相关研究成果指导了在建直流输电工程国产化换流变压器阀侧套管的选型应用。
Valve-side bushing of the converter transformer undertakes the internal and external insulation of the valve-side outgoing line,and is the core element to ensure long term stable operation of the converter transformer. According to the bypast fault characteristics of the converter transformer valve-side bushings and the deficiency of industry standards,based on investigation on the typical structure and technical requirements of three typical converter transformer valve-side bushings in operation of DC transmission projects,six type selection technical points of converter transformer valve-side bushing such as insulation construction design,heat resistance current-carrying capacity and material selection,docking matching consideration to the valve-side outgoing line,sealing structure and mechanical strength design,plugging combination to the valve hall,and connection matching to the outdoor fittings are systemically concluded. Pertinent quality control measures and suggestions to converter transformer valve-side bushings are proposed. Relevant research results conduct the type selection and application of converter transformer valve-side bushings for DC transmission projects under construction.
出处
《南方电网技术》
北大核心
2015年第4期60-67,共8页
Southern Power System Technology
基金
中国南方电网公司2013年科技项目(K-KY2013-104)~~
关键词
换流变压器阀侧套管
典型绝缘结构
选型技术要点
品质控制
valve-side bushing of the converter transformer
typical insulation structure
type selection technical point
quality con-trol
