| 某变电站35kV出线电缆头爆炸事故起因探析 |
| |
| 引用本文： | 黎智强,林欢腾.某变电站35kV出线电缆头爆炸事故起因探析[J].装备制造技术,2009(7):146-147,157. |
| |
| 作者姓名： | 黎智强 林欢腾 |
| |
| 作者单位： | 1. 广西贺州市桂东送变电工程有限责任公司
2. 广西桂东电力调度中心,广西,贺州,542800 |
| |
| 摘 要： | 结合对某电网110MV某变电站35kV出线电缆头爆炸事故的分析研究,指出在35kV经消弧线圈接地系统中,在系统单相间歇性接地时,会在接地点燃起电弧,引起弧光过电压,从而使非故障相对地电压进一步升高,造成绝缘损坏,形成两点甚至多点接地短路,造成电网停电事故,并提出应对弧光过电压的一些技术措施.
|
| 关 键 词： | 消弧线圈 弧光过电压 单相间歇性电弧接地 |
Discussion on Reasions of 35kV Outlet Cable Explosion Accident on Transformer Substation |
| |
| Authors: | LI Zhi-qiang LIN Huan-teng |
| |
| Affiliation: | 1.Guangxi Hezhou Guidong Power Transmission and Transformation Engineering Company;Hezhou Guangxi 542800;China;2.Guangxi Guidong Electric Power Dispatching Center Hezhou Guangxi 542800;China |
| |
| Abstract: | This paper analyzes the explosion accident of outlet cable of 35kV of 110 kV substation,pointing out at the electric power system with the system of 35kV grounded through the arc suppression coil,arc overvoltage may occur when an electric arc can coming up through the place of grounded when occurring the single phase intermittent electric arc grounding,and make the no-fault phase to earth voltage going up further to bring about insulation damage,and may to generate two or multiple earth grounded short circu... |
| |
| Keywords: | arc suppression coil arc overvoltage single phase intermittent electric arc grounding |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
