直流系统微机绝缘监测装置的应用与接地故障点检测探讨

Application of microprocessor-based insulation monitoring device in DC system and study of detection on earthed fault point

介绍了WZJ-1型直流系统微机绝缘监测装置的特点和在现场调试应用的情况,通过对直流系统5年来发生的接地故障点查找实例和分析判别的运行经验总结,提出了运用综合分析判别快速对故障点进行定位隔离的方法,并对微机监测装置的实用性进行了探讨,以提高水电站直流系统的运行可靠性。

This paper presents characteristics,debugging and application on site of WZJ-1 microprocessor-based device for insulation monitoring and detecting in DC system.Based on five-year operation experience like positioning and analysis of earthed fault points in DC system, a synthetical detection method to position and isolate fault points is put forward.What's more,the practicality of the microprocessor-based monitoring device is dissussed in detail.This paper lays a foundation for the advanced operation reliability of DC system in hydropower station.