华中电网覆冰监测系统典型实例分析  

Typical Case Analysis of Icing Load On-line Monitoring System of Central China Power Grid

作　　者：陈继东[1] 张予[1] 

机构地区：[1]华中电网有限公司,武汉430077

出　　处：《电瓷避雷器》2008年第5期8-10,共3页Insulators and Surge Arresters

摘　　要：简要介绍了华中电网覆冰在线监测系统的构成及工作原理,并应用其对2008年冰灾期间复沙II回198#测点进行了详细分析,从测试数据可以判断覆冰大致分为四个阶段:产生,稳定,迅速增加,覆冰融化。这四个阶段与当时的气候条件变化是吻合的。当系统得到的等值覆冰厚度达到最大17.4mm时,附近距离10多公里处的复沙I回线路出现了倒塔,与现场条件吻合。结果表明:华中电网覆冰在线监测系统能及时反映现场覆冰状况,能较为准确地判断被测杆塔实际的覆冰信息,可用于指导生产运行。Icing load on-line monitoring system of Central China Power Grid is briefly introduced. A typical case of Fusha Ⅱ 198# test point during the large area icing accident in 2008 is analyzed. From test data, four steps of icing process were determined： formation, maintaining, rapid growing and melting, which were concided with weather change at that period. While the equivalent icing thickness reaching to 17.4 mm, tower collapse at FUsha line occurred at 10 km apart which also was concided with site accident. The validity and usefulness are proved, it can provide reference for the working operation of Central China Power Grid.

关 键 词：华中电网 覆冰在线监测系统 等值覆冰厚度 

分 类 号：TM76[电气工程—电力系统及自动化]