Simulation research on arc extinguishing characteristics of 35kV self-detaching lightning protection device based on magnetohydrodynamics
To explore the factors affecting the arc extinction performance of the self-disengaging lightning protection device, a numerical simulation model of arc extinction process of the device based on magneto-hydrodynamic theory is established in this paper. The effect of the initial phase angle of the cu...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Electric Power Engineering Technology
2023-01-01
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| Series: | 电力工程技术 |
| Subjects: | |
| Online Access: | https://www.epet-info.com/dlgcjsen/article/abstract/220105019 |
| _version_ | 1797937931245060096 |
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| author | XIE Congzhen LI Yancheng DU Yan XIE Xinhao XIE Xihan CHEN Xiyang |
| author_facet | XIE Congzhen LI Yancheng DU Yan XIE Xinhao XIE Xihan CHEN Xiyang |
| author_sort | XIE Congzhen |
| collection | DOAJ |
| description | To explore the factors affecting the arc extinction performance of the self-disengaging lightning protection device, a numerical simulation model of arc extinction process of the device based on magneto-hydrodynamic theory is established in this paper. The effect of the initial phase angle of the current and the peak airflow velocity of the device on the arc extinction performance of the device is investigated, and the validity of the model is verified by high-current arc-burning tests. The arc extinction time of the device is related to the initial phase of the current, and it decreases with the increase of the initial phase of the current in the interval of 0°~180° electrical phase. The peak airflow velocity of the device is critical to arc extinction. When the peak airflow velocity of the arc extinction is higher than 243 m/s, the arc can be extinguished in half a period and the re-ignition is suppressed. When the peak airflow velocity of the arc extinction is lower than 243 m/s, the 'arc blockage' appears at the outlet of the gas arc extinction cylinder of the device, leading to the arc re-ignition. The findings of this paper provide a theoretical basis for optimizing the arc extinction performance of air-blown lightning protection devices. |
| first_indexed | 2024-04-10T18:51:55Z |
| format | Article |
| id | doaj.art-e47445168f9b49b7be9bfe7ef8b362ca |
| institution | Directory Open Access Journal |
| issn | 2096-3203 |
| language | zho |
| last_indexed | 2024-04-10T18:51:55Z |
| publishDate | 2023-01-01 |
| publisher | Editorial Department of Electric Power Engineering Technology |
| record_format | Article |
| series | 电力工程技术 |
| spelling | doaj.art-e47445168f9b49b7be9bfe7ef8b362ca2023-02-01T07:22:44ZzhoEditorial Department of Electric Power Engineering Technology电力工程技术2096-32032023-01-01421616910.12158/j.2096-3203.2023.01.008220105019Simulation research on arc extinguishing characteristics of 35kV self-detaching lightning protection device based on magnetohydrodynamicsXIE Congzhen0LI Yancheng1DU Yan2XIE Xinhao3XIE Xihan4CHEN Xiyang5School of Electric Power Engineering, South China University of Technology, Guangzhou 510641, ChinaSchool of Electric Power Engineering, South China University of Technology, Guangzhou 510641, ChinaSchool of Electric Power Engineering, South China University of Technology, Guangzhou 510641, ChinaSchool of Electric Power Engineering, South China University of Technology, Guangzhou 510641, ChinaZhanjiang Power Supply Bureau, Guangdong Power Grid Co., Ltd., Zhanjiang 524000, ChinaShenzhen Dailu Technology Co., Ltd., Shenzhen 518027, ChinaTo explore the factors affecting the arc extinction performance of the self-disengaging lightning protection device, a numerical simulation model of arc extinction process of the device based on magneto-hydrodynamic theory is established in this paper. The effect of the initial phase angle of the current and the peak airflow velocity of the device on the arc extinction performance of the device is investigated, and the validity of the model is verified by high-current arc-burning tests. The arc extinction time of the device is related to the initial phase of the current, and it decreases with the increase of the initial phase of the current in the interval of 0°~180° electrical phase. The peak airflow velocity of the device is critical to arc extinction. When the peak airflow velocity of the arc extinction is higher than 243 m/s, the arc can be extinguished in half a period and the re-ignition is suppressed. When the peak airflow velocity of the arc extinction is lower than 243 m/s, the 'arc blockage' appears at the outlet of the gas arc extinction cylinder of the device, leading to the arc re-ignition. The findings of this paper provide a theoretical basis for optimizing the arc extinction performance of air-blown lightning protection devices.https://www.epet-info.com/dlgcjsen/article/abstract/220105019lightningthermal plasmamagnetohydrodynamicselectric arcarc extinguishing devicepower transmission line |
| spellingShingle | XIE Congzhen LI Yancheng DU Yan XIE Xinhao XIE Xihan CHEN Xiyang Simulation research on arc extinguishing characteristics of 35kV self-detaching lightning protection device based on magnetohydrodynamics 电力工程技术 lightning thermal plasma magnetohydrodynamics electric arc arc extinguishing device power transmission line |
| title | Simulation research on arc extinguishing characteristics of 35kV self-detaching lightning protection device based on magnetohydrodynamics |
| title_full | Simulation research on arc extinguishing characteristics of 35kV self-detaching lightning protection device based on magnetohydrodynamics |
| title_fullStr | Simulation research on arc extinguishing characteristics of 35kV self-detaching lightning protection device based on magnetohydrodynamics |
| title_full_unstemmed | Simulation research on arc extinguishing characteristics of 35kV self-detaching lightning protection device based on magnetohydrodynamics |
| title_short | Simulation research on arc extinguishing characteristics of 35kV self-detaching lightning protection device based on magnetohydrodynamics |
| title_sort | simulation research on arc extinguishing characteristics of 35kv self detaching lightning protection device based on magnetohydrodynamics |
| topic | lightning thermal plasma magnetohydrodynamics electric arc arc extinguishing device power transmission line |
| url | https://www.epet-info.com/dlgcjsen/article/abstract/220105019 |
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