Abstract：This paper introduces a typical abnormal accident of grounding fault of DC insulation monitoring device based on the balance bridge principle, and makes a careful analysis of the cause of DC system grounding fault alarm. The main contents including fault process, inspection situation, test process and cause analysis are introduced in detail. The problems exposed by insulation monitoring device based on the balance bridge principle are pointed out, which provides reference experience and methods for handling similar accidents.
马俊岭, 张习鹏, 樊贤, 李锐, 盛宇骋. 一起基于平衡桥原理的直流绝缘监察装置接地报警事故处理与分析[J]. 电气技术, 2018, 19(7): 113-115.
Ma Junling, Zhang Xipeng, Fan Xian, Li Rui, Sheng Yucheng. Analysis and treatment of grounding alarm accidents of DC insulation monitoring device based on balanced bridge principle. Electrical Engineering, 2018, 19(7): 113-115.