| 对故障相经氧化锌电阻接地消弧的异议 |
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| 引用本文： | 李淮海,黄绍平. 对故障相经氧化锌电阻接地消弧的异议[J]. 湖南工程学院学报(自然科学版), 2006, 16(4): 12-15 |
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| 作者姓名： | 李淮海 黄绍平 |
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| 作者单位： | 安徽淮北供电公司,安徽,淮北,235000;湖南工程学院,电气与信息工程系,湖南,湘潭,411101 |
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| 摘 要： | 通过对故障相经氧化锌电阻接地消弧原理的分析,得出了这种方法不可能在电力系统中得到运用的结论.故障相经氧化锌电阻接地消弧必须满足故障相对地电压大于整定值(一般取0.75倍的额定相电压),而发生单相弧光接地时,因为电力系统自身环境约束,要么不满足氧化锌电阻导通的条件,要么满足导通条件但是导通后又会产生过电压,而且氧化锌电阻自身会产生大量热量而爆炸.因此故障相经氧化锌电阻接地消弧本身存在先天的理论缺陷和电力系统特定环境的约束而不可能在实际生产中得到应用.
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| 关 键 词： | 故障相 氧化锌电阻 消弧 过电压 |
| 文章编号： | 1671-119X(2006)04-0012-04 |
| 收稿时间： | 2006-09-01 |
| 修稿时间： | 2006-09-01 |
Dissidence About Arc Suppression by Fault Phrase Grounding with ZnO |
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| LI Huai-hai,HUANG Shao-ping. Dissidence About Arc Suppression by Fault Phrase Grounding with ZnO[J]. Journal of Hunan Institute of Engineering(Natural Science Edition), 2006, 16(4): 12-15 |
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| Authors: | LI Huai-hai HUANG Shao-ping |
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| Affiliation: | 1. Huaibei Electric Power Company, Anhui 235000, China; 2. Dept. of Elect and Information Eng. , Hunan Institute of Engineering, Xiangtan 411101, China |
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| Abstract: | By the means of analyzing the theory of Arc Suppression by fault phrase grounding with ZnO,aconclusion that the theory cann't be applied in power system is gained.Arc Suppression by fault phrase grounding with ZnO must satisfy the fault phrase voltage to earth which is above setting(It is normally 0.75 times normal Phase voltage).But when arc earthing takes place it cann't satisfy the conduction condition or it produces over voltage and huge caloric that maybe causes explosion even though it satisies with conduction conditiont.Beacause of the inhibition of power system,the theory shows defects and cann't be applied in power system. |
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| Keywords: | fault phrase ZnO resistance arc suppression over voltage |
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