Proceedings of the 1991 IEEE Power Engineering Society Transmission and Distribution Conference最新文献

筛选
英文 中文
The Electric Power Rationing Program through the energy quota system: a utility's experience 电力配额制下的电力配额制:一家公用事业公司的经验
A. Bastos
{"title":"The Electric Power Rationing Program through the energy quota system: a utility's experience","authors":"A. Bastos","doi":"10.1109/TDC.1991.169525","DOIUrl":"https://doi.org/10.1109/TDC.1991.169525","url":null,"abstract":"The COELBA utility's primary objective was to satisfy the energy needs of its customers. To continue doing this as far as possible while reducing consumption presented a substantial challenge. This goal was achieved through a combination of political, institutional and organizational activities. The purpose of this study is to describe these steps in the hope that COELBA's experience will be helpful to other utilities. The energy situation in northeastern Brazil and Bahia in December, 1986, and the basic premises that required load curtailment are outlined. The parameters involved, legal aspects and rationing criteria are described. Important operational aspects of quota system application are discussed and the total energy saving and financial loss are presented as well as the main lessons and spin-offs of this experience.<<ETX>>","PeriodicalId":367010,"journal":{"name":"Proceedings of the 1991 IEEE Power Engineering Society Transmission and Distribution Conference","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131367593","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}
引用次数: 3
Evaluation of HVDC cables for the St. Lawrence crossing of Hydro Quebec 500 kV DC line. I. Dielectric and accelerated aging tests on prototypes 魁北克水电公司500kv直流线路圣劳伦斯穿越高压直流电缆的评价。1 .样品的介电和加速老化试验
D. Couderc, N. Trinh, M. Bélec, M. Chaaban, J. Leduc, Y. Beausejour
{"title":"Evaluation of HVDC cables for the St. Lawrence crossing of Hydro Quebec 500 kV DC line. I. Dielectric and accelerated aging tests on prototypes","authors":"D. Couderc, N. Trinh, M. Bélec, M. Chaaban, J. Leduc, Y. Beausejour","doi":"10.1109/TDC.1991.169493","DOIUrl":"https://doi.org/10.1109/TDC.1991.169493","url":null,"abstract":"The dielectric and accelerated aging tests on prototype +or-500 kV DC oil-filled self-contained cables are discussed. The extensive test program was required to evaluate the high-voltage cables for the St. Lawrence river crossing of the +or-500 kV Quebec-New England HVDC power transmission system. The main elements of the test program are related. The required insulation levels, the characteristics of the cables supplied by three different manufacturers, and the cables' installation for the type tests and accelerated aging tests are described. Details of the test program and procedures followed to carry out the tests are given. Findings of the tests are also reported.<<ETX>>","PeriodicalId":367010,"journal":{"name":"Proceedings of the 1991 IEEE Power Engineering Society Transmission and Distribution Conference","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125614257","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}
引用次数: 5
Separable insulated connector loadbreak testing. II. Providing reliability assurances 可分离绝缘连接器负载断裂试验。2提供可靠性保证
R. Filter, J. Mintz
{"title":"Separable insulated connector loadbreak testing. II. Providing reliability assurances","authors":"R. Filter, J. Mintz","doi":"10.1109/TDC.1991.169488","DOIUrl":"https://doi.org/10.1109/TDC.1991.169488","url":null,"abstract":"For pt.I see ibid., p.67-72 (1991). A statistical analysis of the ANSI/IEEE loadbreak switching test shows that it cannot offer utilities reliability assurances. An alternative approach to loadbreak testing is presented. It utilizes the concepts of a generic switching reliability characteristic, composite system switching reliability (CSSR), and lower confidence limits to relate laboratory test performance to utility reliability needs. The major focus is the number of samples, which must be tested in the laboratory, needed to determine in-service reliability to some specified confidence level.<<ETX>>","PeriodicalId":367010,"journal":{"name":"Proceedings of the 1991 IEEE Power Engineering Society Transmission and Distribution Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129683635","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}
引用次数: 1
An intelligent front end for secondary power distribution system design 二次配电系统智能前端设计
N. Rao, Y. Zhang
{"title":"An intelligent front end for secondary power distribution system design","authors":"N. Rao, Y. Zhang","doi":"10.1109/TDC.1991.169579","DOIUrl":"https://doi.org/10.1109/TDC.1991.169579","url":null,"abstract":"The development and use of an expert-system (ES)-based intelligent front end (IFE) for radial-type electric power secondary distribution system (single-phase/three-phase, overhead/underground) design is described. The design is based on minimizing the total annual cost (TAC) of owning and operating the system, subject to specified voltage drop and dip criteria. A rule-based, goal-driven, backward chaining ES shell, VP-Expert, is used to create the IFE and interface it with relational database (dBASE) files on transformer data and transmission line data. The IFE has a very friendly user interface and makes use of a dialog method to communicate with the user. Menus are used to ask for user inputs. The IFE approach is illustrated by means of an example problem involving secondary distribution system design in an urban area. A sample dialog generated during a typical consultation session is presented. The advantages of using an expert system shell as an IFE to existing database files maintained by electric utility companies for secondary distribution system design are discussed.<<ETX>>","PeriodicalId":367010,"journal":{"name":"Proceedings of the 1991 IEEE Power Engineering Society Transmission and Distribution Conference","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129695330","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}
引用次数: 7
A study of separable connector switching performance on a low current circuit 小电流电路中可分离连接器开关性能的研究
William McNulty, M. A. Radtke, J. Makel
{"title":"A study of separable connector switching performance on a low current circuit","authors":"William McNulty, M. A. Radtke, J. Makel","doi":"10.1109/TDC.1991.169489","DOIUrl":"https://doi.org/10.1109/TDC.1991.169489","url":null,"abstract":"A growing number of reports from users indicate an unexpected degree of difficulty in switching low current circuits with separable insulated connectors. Seeming to contradict this is laboratory experience that decreasing the connector switching current increases considerably the switching reliability with typical test circuits and power factors. Studies performed to date have not established any cause for the seeming higher failure rate on low current circuits and have not explained the apparent dichotomy between the field and laboratory experience. An elbow switching failure that occurred at Wisconsin Public Service Corporation was of the type that seemed to be typical of those described for low current circuits. Its remote location and interruptible load provided an opportunity to perform in-situ measurements while live switching was performed. A number of switching tests were then performed on this circuit where the failure had occurred with all circuit parameters monitored by recording instrumentation. Test results and data analysis indicate that the phenomena causing the failures may be more than the typically considered parameters of current magnitude and power factor.<<ETX>>","PeriodicalId":367010,"journal":{"name":"Proceedings of the 1991 IEEE Power Engineering Society Transmission and Distribution Conference","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123312025","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}
引用次数: 2
The effect of reducing momentary outages on distribution reliability indices 减少瞬时停电对配电可靠性指标的影响
C. Warren
{"title":"The effect of reducing momentary outages on distribution reliability indices","authors":"C. Warren","doi":"10.1109/TDC.1991.169582","DOIUrl":"https://doi.org/10.1109/TDC.1991.169582","url":null,"abstract":"Momentary outages are one of the major causes of power supply quality complaints. One method of reducing momentary outages is to eliminate the instantaneous trip on the feeder circuit breaker, thereby making all lateral faults permanent. While this practice does indeed reduce the number of momentary outages, it can adversely affect reliability indices that may be reported to regulatory commissions. The effect of converting momentary outages to permanent outages on distribution feeders is studied. The relationship of momentary outages to good power supply quality is also studied. The effect on reliability of adding reclosers to distribution feeders is discussed.<<ETX>>","PeriodicalId":367010,"journal":{"name":"Proceedings of the 1991 IEEE Power Engineering Society Transmission and Distribution Conference","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123316036","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}
引用次数: 41
Transformer modelling for distribution system studies. II. Addition of models to Y/sub BUS/ and Z/sub BUS/ 配电系统研究中的变压器建模。2增加了Y/sub BUS/和Z/sub BUS/的型号
M. Gorman, J. Grainger
{"title":"Transformer modelling for distribution system studies. II. Addition of models to Y/sub BUS/ and Z/sub BUS/","authors":"M. Gorman, J. Grainger","doi":"10.1109/TDC.1991.169557","DOIUrl":"https://doi.org/10.1109/TDC.1991.169557","url":null,"abstract":"For pt.I, see ibid., p.539-46 (1991). New tools and modelling techniques are needed for detailed characterization of the distribution system. A distribution transformer modelling procedure is discussed which represents the distribution transformer with a minimum of input data for network, load, and fault studies, thereby allowing the transformer to be routinely included as part of the distribution network. The method presented illustrates how transformer models are used in formation of Y/sub BUS/ and Z/sub BUS/ system models.<<ETX>>","PeriodicalId":367010,"journal":{"name":"Proceedings of the 1991 IEEE Power Engineering Society Transmission and Distribution Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121395080","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}
引用次数: 14
Reliability of GIS EHV epoxy insulators: the need and prospects for more stringent acceptance criteria GIS超高压环氧绝缘子的可靠性:更严格的验收标准的需要和前景
J. Braun, G. L. Ford, N. Fujimoto, S. Rizzetto, G. Stone
{"title":"Reliability of GIS EHV epoxy insulators: the need and prospects for more stringent acceptance criteria","authors":"J. Braun, G. L. Ford, N. Fujimoto, S. Rizzetto, G. Stone","doi":"10.1109/TDC.1991.169546","DOIUrl":"https://doi.org/10.1109/TDC.1991.169546","url":null,"abstract":"More demanding partial discharge (PD) acceptance criteria for gas-insulated switchgear (GIS) insulators are required at the higher voltage classes to maintain high levels of reliability. In addition to increased operating stresses and greater manufacturing difficulties, fundamental limitations exist which lessen PD detection sensitivity of large physical objects. PD scaling relationships based on a recently developed theory that enable prediction of PD magnitude in equivalent defects in different insulators are presented. For example, PD magnitudes of 2 to 5 pC (the current acceptance criterion) in a 138 kV insulator correspond to magnitudes of 0.5 to 1.2 pC for 550 kV insulators, based on certain assumptions. In effect, defects with greater severity would thus be passed in present factory tests for 550 kV insulators. To maintain the high levels of reliability that manufacturers and users have come to expect, PD acceptance criteria of 0.5 to 1.0 pC are proposed for 550 kV insulators to obtain a standard of severity equivalent to that in existence at 138 kV.<<ETX>>","PeriodicalId":367010,"journal":{"name":"Proceedings of the 1991 IEEE Power Engineering Society Transmission and Distribution Conference","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126516719","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}
引用次数: 15
Evaluation of the effect of mechanical operations on seismic qualification test of SF/sub 6/ circuit breakers 机械操作对SF/sub - 6断路器抗震鉴定试验影响的评价
R. Hallested, S. Murase, R. Kishida, T. Setoyama
{"title":"Evaluation of the effect of mechanical operations on seismic qualification test of SF/sub 6/ circuit breakers","authors":"R. Hallested, S. Murase, R. Kishida, T. Setoyama","doi":"10.1109/TDC.1991.169547","DOIUrl":"https://doi.org/10.1109/TDC.1991.169547","url":null,"abstract":"Seismic simulation should reproduce the expected seismic environment of substation equipment as realistically as possible. To simulate the real conditions in the field, the stresses caused by the operation of the equipment during the seismic activity must be considered. The two tests, operation and seismic, can be superposed. How the stresses are superposed and how the safety factor should be evaluated are discussed.<<ETX>>","PeriodicalId":367010,"journal":{"name":"Proceedings of the 1991 IEEE Power Engineering Society Transmission and Distribution Conference","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128116613","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}
引用次数: 3
A system and procedure for evaluating separable connector ablative material performance 评价可分离连接器烧蚀材料性能的系统和程序
William McNulty
{"title":"A system and procedure for evaluating separable connector ablative material performance","authors":"William McNulty","doi":"10.1109/TDC.1991.169490","DOIUrl":"https://doi.org/10.1109/TDC.1991.169490","url":null,"abstract":"A test system has been developed that performs a functional test of the ablative materials in loadbreak separable connectors under controlled and repeatable conditions without using a complete elbow and bushing connector system. This system allows for close examination of subtle differences in ablative materials, always with respect to their functional requirements. As a result, ablative materials can be evaluated more readily and less expensively both for monitoring performance of existing materials and for examining new materials, leading ultimately to improved connector performance.<<ETX>>","PeriodicalId":367010,"journal":{"name":"Proceedings of the 1991 IEEE Power Engineering Society Transmission and Distribution Conference","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131371313","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}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信
小红书