Design of fault line selection for small current grounding system in distribution network

Xin Liu; Tianjiao Yu; Zeyi Wang; Mingxi Jiao; Daliang Wang; Wenyang Pei; Weiying Deng

doi:10.1117/12.2689466

10 August 2023 Design of fault line selection for small current grounding system in distribution network

Xin Liu, Tianjiao Yu, Zeyi Wang, Mingxi Jiao, Daliang Wang, Wenyang Pei, Weiying Deng

Proceedings Volume 12748, 5th International Conference on Information Science, Electrical, and Automation Engineering (ISEAE 2023); 127483U (2023) https://doi.org/10.1117/12.2689466
Event: 5th International Conference on Information Science, Electrical and Automation Engineering (ISEAE 2023), 2023, Wuhan, China

Abstract

With the increase of the coverage area of the domestic distribution network, the probability of failure of the distribution network system is also greatly increased. In this paper, a grounding fault line selection system is designed for the small current grounding system of the distribution network. Firstly, taking the fault recorder as the data source, a single-phase grounding fault line selection system is built to monitor the single-phase grounding fault of the small current grounding system in the distribution network of each substation and select the fault line accurately and quickly. Finally, a 380 V physical simulation platform is built to simulate the fault line selection test. Taking Changchun area as an example, a single-phase ground fault occurs in the 66 kV system of Jingyang substation. Through the analysis of the system, the feasibility and accuracy of the line selection system are verified

Citation Download Citation

Xin Liu, Tianjiao Yu, Zeyi Wang, Mingxi Jiao, Daliang Wang, Wenyang Pei, and Weiying Deng "Design of fault line selection for small current grounding system in distribution network", Proc. SPIE 12748, 5th International Conference on Information Science, Electrical, and Automation Engineering (ISEAE 2023), 127483U (10 August 2023); https://doi.org/10.1117/12.2689466

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