小电流接地系统无时限速断保护应用中的常见问题及对策  

COMMON PROBLEMS AND COUNTERMEASURES OF NO-TIME-DELAY INSTANTANEOUS CURRENT PROTECTION FOR SMALL-CURRENT-GROUNDING SYSTEM

作　　者：董立天 华耀青 

机构地区：[1]江苏射阳县供电公司,江苏射阳224300

出　　处：《高压电器》2003年第3期76-77,共2页High Voltage Apparatus

摘　　要：介绍了在小电流接地系统中常见的送电过程及故障情况下无时限速断保护所遇到的配变励磁涌流和电流互感器饱和问题,通过理论分析提出了相应的解决办法。The paper introduces the abnormal phenomena encountered by the no-time-delay instantaneous current protection , i.e., the stress of inrush current of distribution transformer, the effect of CT's saturation. Some solutions are presented aiming at the mentioned problems.

关 键 词：小电流接地系统 无时限速断保护 励磁涌流 短路电流 

分 类 号：TM862[电气工程—高电压与绝缘技术]