{"title":"110kv复合绝缘子高压护套开裂失效分析","authors":"Jian‐Jun Zheng, Yunpeng Gao, Zhigang Wei","doi":"10.1109/CICED50259.2021.9556813","DOIUrl":null,"url":null,"abstract":"In this paper, the crack cause of a 110 kV composite insulator sheath was investigated by means of several different test methods. The results indicated that the crack of the HV sheath was mainly related to the unqualified bonding process and long-term external stress actions. Air void was introduced into the metal fitting-sheath interface due to inferior pasting technology, causing accelerated aging of HV sheath silicone rubber materials. Besides, the corner of composite insulator sheath was always high stress concentrated. Finally, long-term external stress actions and heat inducing accelerated aging of silicone rubber materials resulted in the HV sheath cracking.","PeriodicalId":221387,"journal":{"name":"2021 China International Conference on Electricity Distribution (CICED)","volume":"88 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2021-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Failure Analysis of a 110 kV Composite Insulator with High Voltage Sheath Cracking\",\"authors\":\"Jian‐Jun Zheng, Yunpeng Gao, Zhigang Wei\",\"doi\":\"10.1109/CICED50259.2021.9556813\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this paper, the crack cause of a 110 kV composite insulator sheath was investigated by means of several different test methods. The results indicated that the crack of the HV sheath was mainly related to the unqualified bonding process and long-term external stress actions. Air void was introduced into the metal fitting-sheath interface due to inferior pasting technology, causing accelerated aging of HV sheath silicone rubber materials. Besides, the corner of composite insulator sheath was always high stress concentrated. Finally, long-term external stress actions and heat inducing accelerated aging of silicone rubber materials resulted in the HV sheath cracking.\",\"PeriodicalId\":221387,\"journal\":{\"name\":\"2021 China International Conference on Electricity Distribution (CICED)\",\"volume\":\"88 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-04-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2021 China International Conference on Electricity Distribution (CICED)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/CICED50259.2021.9556813\",\"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 China International Conference on Electricity Distribution (CICED)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CICED50259.2021.9556813","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Failure Analysis of a 110 kV Composite Insulator with High Voltage Sheath Cracking
In this paper, the crack cause of a 110 kV composite insulator sheath was investigated by means of several different test methods. The results indicated that the crack of the HV sheath was mainly related to the unqualified bonding process and long-term external stress actions. Air void was introduced into the metal fitting-sheath interface due to inferior pasting technology, causing accelerated aging of HV sheath silicone rubber materials. Besides, the corner of composite insulator sheath was always high stress concentrated. Finally, long-term external stress actions and heat inducing accelerated aging of silicone rubber materials resulted in the HV sheath cracking.
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