10kV架使用空线防雷技术研究初版.doc

论文题目：煤矿10kV架空线防雷技术研究 专 业：电气工程及其自动化 本 科 生：井鹏飞 （签名） 指导老师：李忠 （签名） 摘 要 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。 通过以上这几种防雷措施的实施，可以提高耐雷水平，使本段线路的供电更加安全可靠。 关键词：10kV架空线路，耐雷水平，安全  Subject:The Research Of 10kv Overhead Line Lighting Protection Technology In Coal Mine Specialty:Electric Engineering and Automation Name: Jing Pengfei (Signature) Instructor: Li Zhong (Signature) ABSTRACT 10kV distribution line is always set in countryside,There is not so much tall buildings,so when storm is coming.10kV distribution line is easy to be strucked by lightning.Because of 10kV distribution lines Insulation level is low,when Lightning occurs it always Bring heavy losses to system.It seriously affected the normal life of people production, sometimes even can pose a threat to the safety of peoples life.Thus the distribution line lightning protection research is very important. The object of this paper is a power supply line for a coal mines wind machine.Once the line tripped or even more severe situation happened because of lightning stroke,The wind machine underground would stop working.It seriously affects the safety in production and the life safety of miners The main task of this article is:first analyzes the basic conditions of the line,and then make a feasible plan.This paper contains the following programs:1 Installing lightning line across the line;2 reducing the tower grounding resistance; 3 Strengthening the Insulation level of the line;4 using line arrester to protect the tower o