{"title":"500kV电气寿命试验500kV断路器SF6分解产物研究","authors":"X. Yang, C. Zhang, W. Li, H. Wang, Yachao Li","doi":"10.1049/icp.2021.2563","DOIUrl":null,"url":null,"abstract":"The condition of gas chamber is significant for the health of a circuit breaker. Analysis of SF<sub>6</sub> decomposed products is one of the effective and non-intrusive methods to assess the condition of gas chamber. The electrical life of a chamber can be tested through large current breaking test. However, few researches focus on the SF<sub>6</sub> decomposed products generated from the life endurance tests. To solve this issue, this research adopts an non-intrusive method to follow the generation process of SF<sub>6</sub> decomposed products under the tests. The method is based on tracking the SF<sub>6</sub> decomposed products as the circuit breaker under test is in operation. Additionally, a SF<sub>6</sub> gas chromatography was designed to record and analyse the changing trends of SF<sub>6</sub> decomposed products. The results show that CF<sub>4</sub>, CO, COS, CS<sub>2</sub>, SO<sub>2</sub>, H<sub>2</sub>S, can be seen as the typical composition products generated by the effect of large electrical arc, and CF<sub>4</sub> and CS<sub>2</sub> can be used to assess the state of gas chamber, especially for nozzle state. Moreover, the erosion of organic materials dominates during large arc breaking tests due to high thermal effects.","PeriodicalId":242596,"journal":{"name":"2021 Annual Meeting of CSEE Study Committee of HVDC and Power Electronics (HVDC 2021)","volume":"65 16","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Studies on SF6 decomposition products of 500kV circuit breaker generated by 500kV electrical life endurance tests\",\"authors\":\"X. Yang, C. Zhang, W. Li, H. Wang, Yachao Li\",\"doi\":\"10.1049/icp.2021.2563\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The condition of gas chamber is significant for the health of a circuit breaker. Analysis of SF<sub>6</sub> decomposed products is one of the effective and non-intrusive methods to assess the condition of gas chamber. The electrical life of a chamber can be tested through large current breaking test. However, few researches focus on the SF<sub>6</sub> decomposed products generated from the life endurance tests. To solve this issue, this research adopts an non-intrusive method to follow the generation process of SF<sub>6</sub> decomposed products under the tests. The method is based on tracking the SF<sub>6</sub> decomposed products as the circuit breaker under test is in operation. Additionally, a SF<sub>6</sub> gas chromatography was designed to record and analyse the changing trends of SF<sub>6</sub> decomposed products. The results show that CF<sub>4</sub>, CO, COS, CS<sub>2</sub>, SO<sub>2</sub>, H<sub>2</sub>S, can be seen as the typical composition products generated by the effect of large electrical arc, and CF<sub>4</sub> and CS<sub>2</sub> can be used to assess the state of gas chamber, especially for nozzle state. Moreover, the erosion of organic materials dominates during large arc breaking tests due to high thermal effects.\",\"PeriodicalId\":242596,\"journal\":{\"name\":\"2021 Annual Meeting of CSEE Study Committee of HVDC and Power Electronics (HVDC 2021)\",\"volume\":\"65 16\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1900-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2021 Annual Meeting of CSEE Study Committee of HVDC and Power Electronics (HVDC 2021)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1049/icp.2021.2563\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2021 Annual Meeting of CSEE Study Committee of HVDC and Power Electronics (HVDC 2021)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1049/icp.2021.2563","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Studies on SF6 decomposition products of 500kV circuit breaker generated by 500kV electrical life endurance tests
The condition of gas chamber is significant for the health of a circuit breaker. Analysis of SF6 decomposed products is one of the effective and non-intrusive methods to assess the condition of gas chamber. The electrical life of a chamber can be tested through large current breaking test. However, few researches focus on the SF6 decomposed products generated from the life endurance tests. To solve this issue, this research adopts an non-intrusive method to follow the generation process of SF6 decomposed products under the tests. The method is based on tracking the SF6 decomposed products as the circuit breaker under test is in operation. Additionally, a SF6 gas chromatography was designed to record and analyse the changing trends of SF6 decomposed products. The results show that CF4, CO, COS, CS2, SO2, H2S, can be seen as the typical composition products generated by the effect of large electrical arc, and CF4 and CS2 can be used to assess the state of gas chamber, especially for nozzle state. Moreover, the erosion of organic materials dominates during large arc breaking tests due to high thermal effects.
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