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19 October 2022 Research on fault detection method of multi-core secondary cable in substation
Juangen Liu, Shaohong Guo, Yuzhi Jing, Jianguang Chu, Zhiyi Jia
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Proceedings Volume 12294, 7th International Symposium on Advances in Electrical, Electronics, and Computer Engineering; 122942K (2022) https://doi.org/10.1117/12.2640490
Event: 7th International Symposium on Advances in Electrical, Electronics and Computer Engineering (ISAEECE 2022), 2022, Xishuangbanna, China
Abstract
Multi-core secondary cable in substation is large in quantity. Traditional cable detection method needs repeated measurement to determine the state of each cable core, which increases greatly the duplication of work. To resolve this problem, we propose a simple secondary cable fault detection method, the multi-core secondary cable is parallelly connected, and inject the DC pulse into it. The status of each cable core can be determined by the characteristics of reflected pulse. Reflected pulse contains fault characteristics of cables, which decays rapidly during propagation on other parallel cable. This method is verified by the experiment. The proposed method can detect typical faults accurately of multi-core secondary cable.
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Juangen Liu, Shaohong Guo, Yuzhi Jing, Jianguang Chu, and Zhiyi Jia "Research on fault detection method of multi-core secondary cable in substation", Proc. SPIE 12294, 7th International Symposium on Advances in Electrical, Electronics, and Computer Engineering, 122942K (19 October 2022); https://doi.org/10.1117/12.2640490
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KEYWORDS
Failure analysis
Pulse generators
Wave propagation
Computer simulations
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