| Issue |
E3S Web Conf.
Volume 369, 2023
3rd International Conference on Environment Resources and Energy Engineering (ICEREE 2023)
|
|
|---|---|---|
| Article Number | 02003 | |
| Number of page(s) | 5 | |
| Section | Renewable Energy Development and Planning | |
| DOI | https://doi.org/10.1051/e3sconf/202336902003 | |
| Published online | 16 February 2023 | |
Study on Selective Insulation On-line Monitoring Technology for Mine Power Network
1.
China Coal Research Institute, Beijing 100013, China;
2.
Engineering Research Center of Coal Mines Emergency Technology Equipment, Beijing 100013, China;
3.
Beijing Mine Safety Engineering Technology Research Center, Beijing 100013, China
a* Corresponding author: lizhongkui@ccrise.cn
b wanglejun@ccrise.cn
In this paper, by studying the change rule of zero sequence voltage when single-phase leakage occurs, the detection method of insulation decline of mine cables is studied, especially the additional low-frequency signal sampling technology of power cables. Combined with the conventional leakage protection technology, the online monitoring equipment and supporting software for the insulation parameters of power cables are developed to realize the online monitoring of the insulation of each branch cable of the mine low-voltage power supply system and achieve the purpose of selective leakage protection.
© The Authors, published by EDP Sciences, 2023
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