Research on fault monitoring technology of station-use low-voltage AC distribution system

Chao Xu; Jiangxiong Wu; Bin Chen; He Li; Wenjian Wu

doi:10.1117/12.2611288

14 October 2021 Research on fault monitoring technology of station-use low-voltage AC distribution system

Chao Xu, Jiangxiong Wu, Bin Chen, He Li, Wenjian Wu

Proceedings Volume 11930, International Conference on Mechanical Engineering, Measurement Control, and Instrumentation; 119302D (2021) https://doi.org/10.1117/12.2611288
Event: International Conference on Mechanical Engineering, Measurement Control, and Instrumentation (MEMCI 2021), 2021, Guangzhou, China

Abstract

As the main power supply system of the power supply network, low-voltage AC power distribution system has wide power grid coverage. Considering the safety of electrical equipment and personnel, the AC power system of the power grid is designed as a grounding system. At the same time, the power distribution line is designed with many fault detection and protection measures. The station-use AC system is an indispensable link to ensure the safe and reliable transmission of electric energy in the substation. The station-use electricity is mainly used to provide power for the primary and secondary equipment in the substation. Due to the several important devices in the substation, the power cannot be cut off at will. To ensure continuous power supply, protection measures of distribution lines are slightly weakened to enable continuous power supply. However, although power production improves the power supply quality, power production accidents caused by station-use AC system failures have attracted the attention of power production companies. In this context, this paper analyzes the insulation fault characteristics of station-use AC low-voltage power distribution system, summarizes the fault hazards, studies the methods for insulation fault detection, and proposes the idea of constructing an insulation fault monitoring system for the station-use AC power distribution system.

Citation Download Citation

Chao Xu, Jiangxiong Wu, Bin Chen, He Li, and Wenjian Wu "Research on fault monitoring technology of station-use low-voltage AC distribution system", Proc. SPIE 11930, International Conference on Mechanical Engineering, Measurement Control, and Instrumentation, 119302D (14 October 2021); https://doi.org/10.1117/12.2611288

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Transformers

Power supplies

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Hazard analysis

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