工业企业内3~10 kV中压系统中性点经电阻接地的分析  

Analysis on Neutral Resistance Grounding of 3~10 kV Medium Voltage System in Industrial Enterprises

作　　者：聂善峰 NIE Shan-feng

机构地区：[1]中铝工业服务有限公司安全生产管理中心,北京102209

出　　处：《有色设备》2020年第5期8-12,共5页Nonferrous Metallurgical Equipment

摘　　要：本文在对一般工业企业内3~10 kV中压系统中中性点不接地系统,以及中性点经消弧线圈接地、直接接地和经电阻器接地的优缺点进行分析的基础上,重点对3~10 kV中压系统中性点经电阻接地进行了基础理论分析,并给出了工业企业6~10 kV中压供电系统关于使用接地电阻方面的几点参考建议。In the present article,the advantages and disadvantages of isolated neutral system,as well as neutral grounding via arc suppression coil,solidly earthed system and neutral grounding via resistor in 3~10 kV medium voltage system in general industrial enterprises were analyzed,and based on which,the basic theoretical analysis on the neutral resistance grounding of the 3~10 kV medium voltage system was performed,and several reference proposals have been given on the use of resistance grounding in 6~10 kV medium voltage power supply system in industrial enterprises.

关 键 词：中压系统 中性点 接地系统 消弧线圈 电阻器 直接接地系统 电容电流 

分 类 号：TM862[电气工程—高电压与绝缘技术]