Research on residual current detection system of substation alternating current power supply

作者：You Li, Chuanfu Xia, Yuan Zhuang, Baoquan Liao, Shuai Huang · 发表于：Journal of Physics Conference Series · 年份：2021 · DOI：10.1088/1742-6596/2108/1/012050 · 被引用次数：2 · 研究领域：Power Systems Fault Detection、Electrical Fault Detection and Protection

Abstract Residual current monitoring of substation is essential to prevent electrical fire and plays an important role in the safety of substation. This paper studied residual current detection technology of substation AC power supply, and proposed a residual current detection system composed of three devices: sensing terminal, management terminal and monitoring terminal. The design could solve some difficult problems such as the secondary line caused by equipment installation, fault wave recording, fault location analysis, and early warning based on analysis of big data. The study could improve the intelligent level and maintenance efficiency of residual current monitoring in substation.