220kV耐张塔中相引流线断线故障原因分析及防范措施  

Fault Analysis of Mid-phase Drainage Line on 220kV Tension Tower and Its Preventive Measures

作　　者：鲁耀[1] 韩培君[1] 徐大鹏[2] 

机构地区：[1]乌兰察布电业局,内蒙古乌兰察布012000 [2]内蒙古电力科学研究院,内蒙古呼和浩特010020

出　　处：《内蒙古电力技术》2013年第6期99-101,共3页Inner Mongolia Electric Power

摘　　要：2013-03-09,乌兰察布电业局220 kV玉前线耐张塔中相小号侧引流线断线跳闸,从导线断点形状、气候因素、线路结构等方面对断线原因进行分析,并通过拉力试验和理论计算进行验证,确定引流线断线是由于故障当日强风情况下,中相引流线绝缘子发生不规则摆动,引流线承受的风载荷超过导线能够承受的抗弯强度而造成断线,进而提出采用加挂重锤和并列引流线的防范措施。March 9. 2013. due to the strong winds the tension tower 220 kV jade front side in relative small jumper wire break trip, through the wire break, malfunction climate. circuit structure analysis of the reasons h^r the break, amt through experiments and theoretical calculations to verify, determine drainage line break was due to strong wind situations, the mid-phase of drainage line irregularly swing, drainage lines exposed wires could withstand wind loads exceed the flexural strength and caused breakage, and then proposed adding a hammer and parallel drainage lines preventive measures, due to strong winds, 220 kV jade tension tower in front jumper disconnected phase tripping, and then put forward to prevent tension tower drainage line break preventive measures.

关 键 词：耐张塔 中相引流线 断线故障 强风 拉力试验 风荷载计算 

分 类 号：TM75[电气工程—电力系统及自动化]