摘要
贵州是输电线路覆冰严重的省份之一，预防绝缘子串冰闪对于保证贵州电网安全运行十分重要。分析了绝缘子串冰闪机理及故障特征，对6种预防输电线路绝缘子串冰闪措施进行了比较，结合贵州山区电网运行环境的特点，推荐采用悬垂绝缘子串间插大盘径绝缘子预防冰闪的措施，并提出了相关的建议。
It is important for Guizhou Power Grid to prevent flashover on suspension insulator string so to ensure its safe and stable operation as Guizhou is one of the provinces in China under critical transmission line icing. Aanalyzing the flashover mechanism on suspension string and the fault features, comparing the 6 kinds of measures for the flashover preventing, and considering the operation mountainous environment of Guizhou Power Grid, this paper recommends a measure of inserting insulator of large diameter into the suspension string for the flashover preventing, and tables related proposals for the purpose.
出处
《南方电网技术》
2011年第A02期59-63,共5页
Southern Power System Technology
关键词
高压输电线路
悬垂绝缘子
覆冰
闪络
大盘径
high voltage power transmission line
suspension insulation string
flashover
grail diameter
