Research on Centralized Short-Circuit and Leakage Protection for High-Voltage System of Underground Central Substation

Yan Gao; Feng Lin Ma; Guang Zhuai Dong; Hai Long Xing

doi:10.4028/www.scientific.net/AMM.494-495.1753

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 494-495Research on Centralized Short-Circuit and Leakage...

Research on Centralized Short-Circuit and Leakage Protection for High-Voltage System of Underground Central Substation

Abstract:

According to the problems which are relay protection is difficult to adjust and when line fault occurs it will easily get override trip in the underground 6 kV power supply system in Gu Shu-yuan Coal Mine. This paper presents a centralized selective short circuit and leakage protection system. Which focuses on the analysis of the short circuit longitudinal differential protection, based on pattern recognition method of single-phase earth leakage protection principle, and completes the rapidity and selectivity of the leakage fault line selection . Through the simulation, experimental and field operation shows that the schemes can effectively improve the reliability and safety of high voltage power supply system in Gu Shu-yuan Coal Mine ,it also establishes the necessary foundation of the goal of "network relay protection" in high voltage power supply system for in China.

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Periodical:

Applied Mechanics and Materials (Volumes 494-495)

Pages:

1753-1757

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.494-495.1753

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Online since:

February 2014

Authors:

Yan Gao*, Feng Lin Ma, Guang Zhuai Dong, Hai Long Xing

Keywords:

Fault Detection, Leakage Protection, Pattern Recognition

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* - Corresponding Author

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