{"title":"Nuisance Operations of Distribution Fuse Links Due to Lightning-Induced Current Surges","authors":"C. Smallwood, H. Regina, C. Cook","doi":"10.1109/REPCON.2006.1649051","DOIUrl":"https://doi.org/10.1109/REPCON.2006.1649051","url":null,"abstract":"The probability of nuisance operations of distribution fuse links due to lightning-induced current surges is the subject of much discussion today. This discussion is driven, in part, by the practice of moving the surge arrester to the transformer tank to improve overvoltage protection of the transformer. One consequence of this practice is that the probability of nuisance operation of the fuse link protecting the transformer increases significantly unless larger fuse-link sizes are employed, or unless high-surge-capacity fuse links are used. Section II of this paper describes a method for determining the probability of nuisance operations of fuse links under various conditions. Section III describes one utility's experience with moving the arrester to the transformer tank, and also its success with high-surge-capacity fuse links","PeriodicalId":300971,"journal":{"name":"2006 IEEE Rural Electric Power Conference","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133852217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"NRECA Reliability Reporting Survey and the New RUS Interruption Reporting Requirement","authors":"E. Bevers, B. Saint","doi":"10.1109/REPCON.2006.1649042","DOIUrl":"https://doi.org/10.1109/REPCON.2006.1649042","url":null,"abstract":"The Power Quality Subcommittee of the NRECA T&D Engineering Committee has conducted an on-line Reliability Reporting Practices Survey of NRECA member distribution cooperatives for the past two years. The survey asks questions on the following specific areas of distribution reliability reporting and analysis: 1) tracking interruptions, 2) sustained interruption reporting, 3) momentary interruption reporting, 4) power quality reporting, 5) power restoration after an interruption, 6) interruption prevention, 7) system, and 8) operation even though this survey has only been conducted for only two years, there are some trends developing. This paper reports on the results of the survey, examines the trends that are developing and the implication of those trends. In addition, the Power Quality Subcommittee has been working on the revision of the RUS Interruption Reporting Bulletin and has submitted a revision to RUS for their consideration and publication. There are a few significant changes in the way borrowers are going to be required to report interruptions in the future (possibly starting in 2006). Borrowers are going to be required to report interruptions using the system average interruption index (SAIDI) in minutes instead of consumer-hours per consumer. In addition, the major storm category has been changed to major event and borrowers is required to use the IEEE statistical method to calculate a daily SAIDI for the major event day threshold. Also, the distinction between \"power supply\" classified interruptions is more clearly defined. We are encouraging all utilities to utilize this methodology for better consistency in how customer interruptions are reported and analyzed","PeriodicalId":300971,"journal":{"name":"2006 IEEE Rural Electric Power Conference","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130476831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Reliability of the Conductor System in Today~s Environment and the Importance of Maintaining Its Integrity","authors":"M. R. Burns","doi":"10.1109/REPCON.2006.1649050","DOIUrl":"https://doi.org/10.1109/REPCON.2006.1649050","url":null,"abstract":"Today there are new, non-destructive ways to investigate conductor integrity that give utilities the capability to repair, replace, or upgrade small portions of the system, resulting in substantial reliability increases overall. This paper reviews some of the causes of failing conductor splices, repair and replacement options, and factors that support the continuing maintenance of the existing system. Knowing the solutions for weak connections in the system, utilities can make better choices of repair scenarios","PeriodicalId":300971,"journal":{"name":"2006 IEEE Rural Electric Power Conference","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132534399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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