{"title":"变压器安装故障分析案例研究-第1部分","authors":"Sudipta Maiti","doi":"10.1109/CPRE48231.2021.9429727","DOIUrl":null,"url":null,"abstract":"The events in this case study took place within a year of commissioning of Station Transformer # 1 & 2 at a newly commissioned Generating Station of 2 * 500MW Units. The case study analyses the reason of mal-tripping of High Impedance REF Protection during out-zone faults due to wrong maximum through fault current assumptions in REF Stabilizing Resistance calculations. It teaches us to use the maximum of 1LG and 3LG fault current as the through fault current for calculation of RS.","PeriodicalId":405115,"journal":{"name":"2021 74th Conference for Protective Relay Engineers (CPRE)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2021-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Case Studies in Analyzing Transformer Installation Faults – Part 1\",\"authors\":\"Sudipta Maiti\",\"doi\":\"10.1109/CPRE48231.2021.9429727\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The events in this case study took place within a year of commissioning of Station Transformer # 1 & 2 at a newly commissioned Generating Station of 2 * 500MW Units. The case study analyses the reason of mal-tripping of High Impedance REF Protection during out-zone faults due to wrong maximum through fault current assumptions in REF Stabilizing Resistance calculations. It teaches us to use the maximum of 1LG and 3LG fault current as the through fault current for calculation of RS.\",\"PeriodicalId\":405115,\"journal\":{\"name\":\"2021 74th Conference for Protective Relay Engineers (CPRE)\",\"volume\":\"70 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-03-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2021 74th Conference for Protective Relay Engineers (CPRE)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/CPRE48231.2021.9429727\",\"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 74th Conference for Protective Relay Engineers (CPRE)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CPRE48231.2021.9429727","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Case Studies in Analyzing Transformer Installation Faults – Part 1
The events in this case study took place within a year of commissioning of Station Transformer # 1 & 2 at a newly commissioned Generating Station of 2 * 500MW Units. The case study analyses the reason of mal-tripping of High Impedance REF Protection during out-zone faults due to wrong maximum through fault current assumptions in REF Stabilizing Resistance calculations. It teaches us to use the maximum of 1LG and 3LG fault current as the through fault current for calculation of RS.
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