输电线路覆冰对电力网的影响及危害分析  

Anaiysis on the Influence and Harm of Transmission Line Icing to Tranmission Network

作　　者：严跃成[1] 龚守远[2] 邱秀云[3] 

机构地区：[1]新疆大学建筑工程学院,新疆乌鲁木齐830008 [2]新疆农业大学农学院,新疆乌鲁木齐830052 [3]新疆农业大学水利与土木工程学院,新疆乌鲁木齐830052

出　　处：《水力发电》2008年第11期95-97,共3页Water Power

摘　　要：输电线覆冰将严重影响电网安全运行,会导致杆塔荷载增大、输电线垂度增大。覆冰严重时还会引起倒塔。行对于此,分析了输电线覆冰对输电线安全的影响,即输电线覆冰对输电线负载的影响、覆冰厚度增加时对输电线强度的影响,为输电线路设计和安全提供了参考。The ice eover of transmission line will seriously impaet on safe operation of power grid, whieh will cause the increase of pole tower load and the sag of conductor. The heavy lee cover even would cause the eollapse of tower. For this reason, this paper analyzes the influenee of iee eover of eonduetor on the safety of conduetor line, ineluding the influence of ice coating on the load of power line and ice thickness rising on line strength, which provides the reference for the design and security of transmission line.

关 键 词：输电线 覆冰 不平衡张力 塔架 电网 

分 类 号：TM726[电气工程—电力系统及自动化]