Research on Electric Field Distribution and Breakdown Characteristics of GIS Double-fracture Disconnect Switch under Non-outage Experiment
Due to the breakdown of the test-side fracture during the non-outage voltage-withstand test, the double-fracture disconnect switch (DDS) with a common chamber structure has been exposed to the risk of affecting the insulation performance of the operating-side fracture. Therefore, it is necessary to...
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| Format: | Article |
| Language: | zho |
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State Grid Energy Research Institute
2023-09-01
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| Series: | Zhongguo dianli |
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| Online Access: | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202305009 |
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| author | Zifan DONG Jieshuai REN Jiangang YIN Jun CHEN Yaqin WEN Jinbin LI |
| author_facet | Zifan DONG Jieshuai REN Jiangang YIN Jun CHEN Yaqin WEN Jinbin LI |
| author_sort | Zifan DONG |
| collection | DOAJ |
| description | Due to the breakdown of the test-side fracture during the non-outage voltage-withstand test, the double-fracture disconnect switch (DDS) with a common chamber structure has been exposed to the risk of affecting the insulation performance of the operating-side fracture. Therefore, it is necessary to study the electric field distribution and breakdown characteristics of the DSS during the design phase. In this paper, the newly developed 110 kV three-phase common box type GIS DDS was taken as an example. The finite element method was employed to simulate the electric field, as well as to obtain the internal electric field strength distribution during non-outage voltage-withstand test at the actual site. Based on the electric field calculation results and the breakdown criteria deduced by Thomson discharge theory, the breakdown characteristics of the two fractures were studied during non-outage voltage-withstand test. It was proven that the breakdown of the test-side fracture would not affect the insulation performance of the operating-side in the non-outage voltage-withstand testing process of the DDS. The results provide theoretical support for non-outage expansion and on-site insulation test during the second-phase expansion, and also provide a more detailed theoretical basis for insulation verification in the future development of the next-generation DDS equipment. |
| format | Article |
| id | doaj-art-018d685a90ee49a7af8a6a79f1b213c6 |
| institution | OA Journals |
| issn | 1004-9649 |
| language | zho |
| publishDate | 2023-09-01 |
| publisher | State Grid Energy Research Institute |
| record_format | Article |
| series | Zhongguo dianli |
| spelling | doaj-art-018d685a90ee49a7af8a6a79f1b213c62025-08-20T02:04:31ZzhoState Grid Energy Research InstituteZhongguo dianli1004-96492023-09-0156916817710.11930/j.issn.1004-9649.202305009zgdl-56-09-donghzifanResearch on Electric Field Distribution and Breakdown Characteristics of GIS Double-fracture Disconnect Switch under Non-outage ExperimentZifan DONG0Jieshuai REN1Jiangang YIN2Jun CHEN3Yaqin WEN4Jinbin LI5State Grid Hubei Electric Power Co., Ltd. Electric Power Research Institute, Wuhan 430077, ChinaState Grid Hubei Electric Power Co., Ltd. Electric Power Research Institute, Wuhan 430077, ChinaState Grid Hubei Electric Power Co., Ltd., Wuhan 430077, ChinaState Grid Hubei Electric Power Co., Ltd. Electric Power Research Institute, Wuhan 430077, ChinaState Grid Hubei Electric Power Co., Ltd. Electric Power Research Institute, Wuhan 430077, ChinaState Grid Hubei Electric Power Co., Ltd. Electric Power Research Institute, Wuhan 430077, ChinaDue to the breakdown of the test-side fracture during the non-outage voltage-withstand test, the double-fracture disconnect switch (DDS) with a common chamber structure has been exposed to the risk of affecting the insulation performance of the operating-side fracture. Therefore, it is necessary to study the electric field distribution and breakdown characteristics of the DSS during the design phase. In this paper, the newly developed 110 kV three-phase common box type GIS DDS was taken as an example. The finite element method was employed to simulate the electric field, as well as to obtain the internal electric field strength distribution during non-outage voltage-withstand test at the actual site. Based on the electric field calculation results and the breakdown criteria deduced by Thomson discharge theory, the breakdown characteristics of the two fractures were studied during non-outage voltage-withstand test. It was proven that the breakdown of the test-side fracture would not affect the insulation performance of the operating-side in the non-outage voltage-withstand testing process of the DDS. The results provide theoretical support for non-outage expansion and on-site insulation test during the second-phase expansion, and also provide a more detailed theoretical basis for insulation verification in the future development of the next-generation DDS equipment.https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202305009double-fracture disconnect switchnon-outage expansionfinite element simulationthomson discharge theorybreakdown characteristic |
| spellingShingle | Zifan DONG Jieshuai REN Jiangang YIN Jun CHEN Yaqin WEN Jinbin LI Research on Electric Field Distribution and Breakdown Characteristics of GIS Double-fracture Disconnect Switch under Non-outage Experiment Zhongguo dianli double-fracture disconnect switch non-outage expansion finite element simulation thomson discharge theory breakdown characteristic |
| title | Research on Electric Field Distribution and Breakdown Characteristics of GIS Double-fracture Disconnect Switch under Non-outage Experiment |
| title_full | Research on Electric Field Distribution and Breakdown Characteristics of GIS Double-fracture Disconnect Switch under Non-outage Experiment |
| title_fullStr | Research on Electric Field Distribution and Breakdown Characteristics of GIS Double-fracture Disconnect Switch under Non-outage Experiment |
| title_full_unstemmed | Research on Electric Field Distribution and Breakdown Characteristics of GIS Double-fracture Disconnect Switch under Non-outage Experiment |
| title_short | Research on Electric Field Distribution and Breakdown Characteristics of GIS Double-fracture Disconnect Switch under Non-outage Experiment |
| title_sort | research on electric field distribution and breakdown characteristics of gis double fracture disconnect switch under non outage experiment |
| topic | double-fracture disconnect switch non-outage expansion finite element simulation thomson discharge theory breakdown characteristic |
| url | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202305009 |
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