摘要
研究了交流输电线路接地故障对输油输气管道的电磁影响及其防护,对输油输气管道的安全运行和电网建设都具有重大意义。考虑交流输电线路发生单相接地故障,计算得到了临近输油输气管道综合电压随交流线路杆塔接地电阻、架空地线数量及型式、相间距、导线高度等参数变化的曲线;分析了产生各种变化规律的原因,并提出在实际工程应用中需注意的问题。
It is very significant for both secure operation of petroleum/gas pipelines and power network construction to research electromagnetic impact of earth fault of AC transmission lines on petroleum/gas pipelines. Under the condition of single-phase earth fault of AC transmission line, the curves of total voltage adjacent to petroleum/gas pipeline varying with parameters such as grounding resistance of AC transmission tower, number and type of overhead ground wire, phase spacing, conductor height are calculated; the reasons causing various variations are analyzed, and some issues to be paid attention to are put forward.
出处
《电网技术》
EI
CSCD
北大核心
2010年第6期10-13,共4页
Power System Technology
关键词
交流输电线路
输油输气管道
单相接地故障
电磁影响
杆塔接地电阻
相间距
AC transmission line
petroleum/gas pipelines
single-phase ground fault
electromagnetic effect
towergrounding resistance
phase spacing
