文档介绍：摘要
在我国10kV线路纵横延伸,地处旷野,雷雨季易遭雷击。由于10kV系统内的设备绝缘水平和耐雷水平低,因此当发生雷电灾害时,造成的损失往往比较大,严重影响到了人们的正常生活生产,有时甚至能威胁到人们的生命安全。因此配电线路的避雷防雷保护研究有着十分重要的意义。
本课题研究的对象是一段为煤矿风机供电的10kV配电线路,一旦该段线路因为雷击造成跳闸甚至更严重的情况,井下风机就会停止运转,对煤矿的生产和矿工的生命安全造成极大的威胁。
本文根据线路的具体情况,首先对线路的雷电灾害情况进行分析,然后提出可以使用的方案,对这些方案进行进一步的分析,最终确定每种措施的具体实施方法,具体的措施为:通过线路避雷器对特殊位置杆塔进行保护;全线架设避雷线;降低杆塔的接地电阻;加强线路的绝缘。
通过以上这这几种措施的实施,可以提高线路的耐雷水平,使本段线路的供电更加安全可靠。
关键词:配电线路,雷电灾害,防雷,安全
Subject: The Research on Lightning Protection of 10kV Transmission Lines of Ningtiaota Coal mine
Specialty: Electrical Engineering and Automation
Name: Guan Binbin (Signature) ____
Instructor:Li Zhong (Signature) ____
ABSTRACT
10kV transmission line is always set in countryside,there is not so much tall Buildings,so when lightning disaster transmission line is easy to be strucked by of 10kV transmission line's insulation level is low,when Lightning occurs it always bring heavy seriously affected the production, sometimes even pose a threat to the safety of people's life. So lightning protection research is very important.
The object of my research is a power supply line for a coal mine's wind the line tripped or even more serious situation happened because of lightning stroke,zhe wind machine underground would sotp seriously affects the safety in production and the life safety of miners
My plan in this research is:First analyzes the basic conditions of the line,and then make a feasible plan contains the following programs:using line arrester to protect the tower of special position; Installing lightning line across the line;reducing the tower grounding resistance;Strengthening the Insulation level of the line.
I hope by using these programs to prove the line lightning protection level to make sure the ilne's power supply is more safe and reliable.
Key words:transmission line,lightning disaster,lightning protection,safety
目录
第一章绪论
课题的背景和研究意义
随着全球气候异常状况日益加剧,雷电活动也异常频繁。雷电灾