摘要
在小电流接地系统发生单相接地故障时,80%以上会伴有接地电弧的产生,故障电弧具有随机性,会随周围环境的变化而变化。文章对电弧进行了简单的理论分析,着重研究电弧仿真模型的建立与分析。利用EMTP/ATP建立了弧光接地的故障模型,该模型将现场运行的干扰因素考虑在内,在技术上突破了以往搭建模型的理想模式,为小电流接地系统选线研究提供了数据支持,为后续的研究夯实基础。
When single -phase ground fault occurs in the neutral ineffectively grounded system, the occurrence probability of ground arc fault is over 80%. Arc fault is random, and change with the change of the surroundings. Theoretical analysis of arc was conducted, and the establishment and analysis of arc simulation model were specially studied. Arc grounding fault model was established in the EMTP/ATP, with the live interference considered. The model made breakthrough for the traditional ideal model, providing data support for the fault line detection in neutral point ineffectively grounded system, and laying a solid foundation for the following study.
出处
《煤炭工程》
北大核心
2014年第1期105-107,共3页
Coal Engineering
