摘要
通过分析特高压直流线路工程常见的故障与缺陷,梳理影响线路安全运行的关键因素.影响线路安全稳定运行的故障主要由冰害、雷击等引起,缺陷主要来自跳线金具、引流线、地线金具等部位.针对特高压直流输电线路的常见故障与缺陷,从路径选择、气象条件、导地线、绝缘子和金具、杆塔设计等方面全方位地给出了提升线路可靠性的措施,可操作性强,能有效降低故障发生的概率.
Abstract
By analyzing the common faults and defects of UHVDC transmission line engineering,the key factors affecting safe operation are clarified in this paper.The faults that affect safe and stable operation of transmission lines are mainly caused by ice damage and lightning strike.The defects mainly come from jumper wire,drainage wire,ground wire and other parts.Aiming at addressing common faults and defects of UHVDC transmission lines,the measures to improve line reliability are given from the aspects of path selection,meteorological conditions,guide ground,insulators and fittings,tower design,etc.These measures are practically operable and can effectively reduce the probability of failure.
基金项目
国家电网有限公司技术研究服务项目(SG-ZB0000T-GJS2300869)
NETL
NSTL
万方数据