| 220 kV随姚线导线断线故障过程及原因分析 |
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| 引用本文： | 汪涛,胡刚,谭章英,高亮,王涛,董永德,艾福州. 220 kV随姚线导线断线故障过程及原因分析[J]. 湖北电力, 2008, 32(1): 4-5 |
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| 作者姓名： | 汪涛 胡刚 谭章英 高亮 王涛 董永德 艾福州 |
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| 作者单位： | 湖北省电力试验研究院,湖北武汉,430077;宜昌供电公司输电部,湖北宜昌,434000 |
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| 摘 要： | 针对导线断股达到一定数量后,提出钢芯线通过电流发热温度计算方法,以及钢芯线上产生的温度是否超过钢材料弹性变形限值的判据。根据故障录波图电流参数分析计算,判断导线损伤截面超过原截面一定数量后,会造成三相电流不平衡,产生零序电流,启动故障录波器。
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| 关 键 词： | 导线 断股 钢芯线 |
| 文章编号： | 1006-3986（2008）01-0004-02 |
| 收稿时间： | 2007-12-01 |
| 修稿时间： | 2007-12-01 |
Course and Reason about 220 kV SuiYao Line Broken Wire Fault |
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| WANG Tao,HU Gang,TAN Zhang-ying,GAO Liang,WANG Tao,DONG Yong-de,AI Fu-zhou. Course and Reason about 220 kV SuiYao Line Broken Wire Fault[J]. Hubei Electric Power, 2008, 32(1): 4-5 |
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| Authors: | WANG Tao HU Gang TAN Zhang-ying GAO Liang WANG Tao DONG Yong-de AI Fu-zhou |
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| Abstract: | According to the number of broken strands,the calculational method of steel core line's temperature due to transmitting current are put forward,and whether the criterion of temperature to exceed elastic deformation limit is also presented.On the basis of analysis and computing result via fault recorder's current parameter,the conclusions arrive. When injured line section reaching certain degree,it will cause current unbalance in three phases,create zero sequence current and start fault recorder. |
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| Keywords: | line broken strands steel core line |
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