低压配电领域中的故障电弧防护

Protection of Fault Arc in the Fields of Low Voltage Power Distribution

综述国外近年来在电弧故障防护方面的研究成果。在阐述故障电弧物理现象的基础上,介绍了故障电弧防护标准。在分析了目前常用的几种常规保护线路后指出,它们并不能对故障电弧进行全面保护。分析了故障电弧产生的原因,并给出了防护措施。重点介绍国外几个实用的故障电弧防护系统。最后对我国开展电弧防护技术的工作提出建议。

The research achievements of the protection of fault arc at abroad were reviewed. The physical phenomenon of fault arc was described and the standard of the protection of fault arc was introduced. After analysing a few of conventional protective circuits, it is point out that these circuits can not carry out overall protection on fault arc. The cause of generation of fault arc was analyzed and the protective measures of fautt arc were given. Some practive protection systems of fault arc at abroad were introduced. Finally, some suggestions for development of the protection of fault arc at home were presented.