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IEEE Transactions on Power Apparatus and Systems最新文献

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T2 Wind Notion Resistance Conductor T2风概念电阻导体
IEEE Transactions on Power Apparatus and Systems Pub Date : 1985-10-01 DOI: 10.1109/TPAS.1985.319133
J. Roche, D. Douglass
{"title":"T2 Wind Notion Resistance Conductor","authors":"J. Roche, D. Douglass","doi":"10.1109/TPAS.1985.319133","DOIUrl":"https://doi.org/10.1109/TPAS.1985.319133","url":null,"abstract":"T2 conductor consists of two standard stranded conductors twisted about one another with a twist length of approximately 9 feet. Because of its aerodynamic and mechanical properties, the conductor is resistant to both galloping and aeolian vibration. Extensive field tests and laboratory tests were performed to verify the reduction in amplitude and frequency of wind induced motions with T2. As a result of these studies it is possible to string T2 to higher unloaded tensions and thus reduce structure height and/or the number, of structures per mile. An economic analysis is presented wherein the economic benefits of increased tension and decreased phase to phase spacing are measured against the increase in wind and ice loading characteristic of T2. It is concluded that the conductor offers significant advantages in decreased cost and/or increased reliability in common line design situations.","PeriodicalId":227345,"journal":{"name":"IEEE Transactions on Power Apparatus and Systems","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131786403","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
Observation on Final Jump of the Discharge in the Experiment of Artificially Triggered Lighting 人工触发照明实验中放电终跳的观察
IEEE Transactions on Power Apparatus and Systems Pub Date : 1985-10-01 DOI: 10.1109/TPAS.1985.319136
Kenji Horii, H. Sakurano
{"title":"Observation on Final Jump of the Discharge in the Experiment of Artificially Triggered Lighting","authors":"Kenji Horii, H. Sakurano","doi":"10.1109/TPAS.1985.319136","DOIUrl":"https://doi.org/10.1109/TPAS.1985.319136","url":null,"abstract":"The final striking discharges to a power line or to the ground were observed from near site in the experiment of triggered lightning with rocket in winter of Japan. The leader stroke propagated downwards apart from the grounded wire trailed by the rocket with branching and bending in every stepping point. The final striking distance was related to the peak discharge current comparing with the curves in the literatures.","PeriodicalId":227345,"journal":{"name":"IEEE Transactions on Power Apparatus and Systems","volume":"183 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121940065","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: 4
Influence of Air Density on the Impulse Strength of External Insulation 空气密度对外绝缘冲击强度的影响
IEEE Transactions on Power Apparatus and Systems Pub Date : 1985-10-01 DOI: 10.1109/MPER.1985.5528705
A. Pigini, G. Sartorio, M. Moreno, M. Ramirez, R. Cortina, E. Garbagnati, A. Britten, K. Sadurski
{"title":"Influence of Air Density on the Impulse Strength of External Insulation","authors":"A. Pigini, G. Sartorio, M. Moreno, M. Ramirez, R. Cortina, E. Garbagnati, A. Britten, K. Sadurski","doi":"10.1109/MPER.1985.5528705","DOIUrl":"https://doi.org/10.1109/MPER.1985.5528705","url":null,"abstract":"This paper summarizes the results of joint research conducted by ENEL-CESI (Italy), ESCOM (South Africa) and CFE (Mexico) into the influence of air density on the impulse strength of external insulation.","PeriodicalId":227345,"journal":{"name":"IEEE Transactions on Power Apparatus and Systems","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122867576","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: 30
On Currents Induced in Power Transmission Systems During Geomagnetic Variations 地磁变化时输电系统感应电流的研究
IEEE Transactions on Power Apparatus and Systems Pub Date : 1985-10-01 DOI: 10.1109/TPAS.1985.319126
R. Pirjola
{"title":"On Currents Induced in Power Transmission Systems During Geomagnetic Variations","authors":"R. Pirjola","doi":"10.1109/TPAS.1985.319126","DOIUrl":"https://doi.org/10.1109/TPAS.1985.319126","url":null,"abstract":"Theoretical estimation of the electric field occurring at the earth's surface during a time variation in the geomagnetic field is discussed. Numerical computations, which have been made assuming an idealized behaviour for the magnetic field or using measured magnetic values, indicate the existence of horizontal electric fields in the order of 1 V/km in connection with geomagnetic disturbances. Calculation of quasi-direct currents produced in an arbitrary conductor network (e. g. a power transmission system) by a geomagnetically-induced electric field is discussed. Numerical results concerning the Finnish 400 kV grid are given. It is seen that currents in the order of 100 A can be expected to flow through transformers during geomagnetic disturbances. The largest current measured in the Finnish recordings so far has been 165 A. These recordings carried out since 1977 are also described in this paper.","PeriodicalId":227345,"journal":{"name":"IEEE Transactions on Power Apparatus and Systems","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115402715","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
Aep Chainette Structure Development 链状结构发展
IEEE Transactions on Power Apparatus and Systems Pub Date : 1985-10-01 DOI: 10.1109/MPER.1985.5528699
R. Marsico, R. Ryan, R. Retallack
{"title":"Aep Chainette Structure Development","authors":"R. Marsico, R. Ryan, R. Retallack","doi":"10.1109/MPER.1985.5528699","DOIUrl":"https://doi.org/10.1109/MPER.1985.5528699","url":null,"abstract":"American Electric Power (AEP) has studied the chainette structure for application on EHV and UHV lines. AEP in 1980-81 designed and built one 765kV structure. Based on this experience AEP completed a second design and plans this year to build seven 765kV chainette structures. This paper describes the results of the study and the design work.","PeriodicalId":227345,"journal":{"name":"IEEE Transactions on Power Apparatus and Systems","volume":"226 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115991393","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
Travel Time of Transmission Towers 传输塔的运行时间
IEEE Transactions on Power Apparatus and Systems Pub Date : 1985-10-01 DOI: 10.1109/TPAS.1985.319139
W. Chisholm, Y. Chow, K. Srivastava
{"title":"Travel Time of Transmission Towers","authors":"W. Chisholm, Y. Chow, K. Srivastava","doi":"10.1109/TPAS.1985.319139","DOIUrl":"https://doi.org/10.1109/TPAS.1985.319139","url":null,"abstract":"In prediction of HV and EHV lightning outage rates, the tower surge response consists of two parameters, the tower impedance and the tower travel time. Of the two, tower travel time has a larger effect on the predictions. A new model for tower travel time is developed based on the relationship between tower capacitance and tower surface area. Effects of tower crossarms and other features are modelled correctly by the new theory. When the new model is used, improved lightning outage rate prediction accuracy is obtained for 500kV single circuit lines.","PeriodicalId":227345,"journal":{"name":"IEEE Transactions on Power Apparatus and Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130871932","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: 77
Preventing Failures in Outdoor Distribution-Class Metalclad Switchgear 室外配电类金属铠装开关柜故障的预防
IEEE Transactions on Power Apparatus and Systems Pub Date : 1985-10-01 DOI: 10.1109/TPAS.1985.319111
R. VanHaeren, G. Stone, J. Meehan, M. Kurtz
{"title":"Preventing Failures in Outdoor Distribution-Class Metalclad Switchgear","authors":"R. VanHaeren, G. Stone, J. Meehan, M. Kurtz","doi":"10.1109/TPAS.1985.319111","DOIUrl":"https://doi.org/10.1109/TPAS.1985.319111","url":null,"abstract":"Failure of the insulation in distribution- class metalclad switchgear may release large amounts of energy resulting in an explosive hazard to adjacent equipment and personnel. Many such failures have occurred in older outdoor and generating station switchgear within Ontario Hydro. The failures have often been caused by partial discharge (PD) activity and surface tracking which destroy organic bus support insulation. Test methods have evolved to help locate deteriorating insulation in the field, and to qualify new insulation systems. The life of the switchgear can often be extended by incorporating appropriate preventive maintenance.","PeriodicalId":227345,"journal":{"name":"IEEE Transactions on Power Apparatus and Systems","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114405410","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: 8
Electromagnetic Transients in a Line-Transformer Cascade by a Numerical Laplace Transform Technique 用数值拉普拉斯变换技术研究线-变压器级联中的电磁瞬变
IEEE Transactions on Power Apparatus and Systems Pub Date : 1985-10-01 DOI: 10.1109/TPAS.1985.319135
Mohamed Saled, A. Al-Fuhaid
{"title":"Electromagnetic Transients in a Line-Transformer Cascade by a Numerical Laplace Transform Technique","authors":"Mohamed Saled, A. Al-Fuhaid","doi":"10.1109/TPAS.1985.319135","DOIUrl":"https://doi.org/10.1109/TPAS.1985.319135","url":null,"abstract":"The purpose of this work is to present a method for studying electromagnetic transients appearing in a power network consisting of a long transmission line and a transformer connected in cascade. An exact equivalent circuit representation of the system is developed using distributed element analysis in the s-domain. The proposed model assumes distributed inductances and self and mutual capacitances within the transformer windings. In addition, the new model can easily account for various connections of the transformer neutral. The line, which can be of any length, is represented by a single exact two-port network which is derived from distributed parameter theory. The new model yields closed form expressions in the s-domain for the transient potential distributions along the turns of the transformer winding as well as the connecting transmission line.","PeriodicalId":227345,"journal":{"name":"IEEE Transactions on Power Apparatus and Systems","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127878142","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: 11
Measurement and Statistical Analysis of Ozone from HVDC and HVDC Transmission Lines 高压直流及高压直流输电线路臭氧的测量与统计分析
IEEE Transactions on Power Apparatus and Systems Pub Date : 1985-10-01 DOI: 10.1109/TPAS.1985.319122
L. Varfalvy, R. Dallaire, P. Maruvada, N. Rivest
{"title":"Measurement and Statistical Analysis of Ozone from HVDC and HVDC Transmission Lines","authors":"L. Varfalvy, R. Dallaire, P. Maruvada, N. Rivest","doi":"10.1109/TPAS.1985.319122","DOIUrl":"https://doi.org/10.1109/TPAS.1985.319122","url":null,"abstract":"Corona-generated ozone is one of the parameters considered in evaluating the environmental impact of high voltage ac and dc transmission lines. Measurements of ozone levels near an operating 735-kV ac line and near a test line with ±900-kV and ±450-kV dc line configurations are reported in this paper. A detailed statistical analysis of the measured data shows that the contributions to ambient ozone levels by the three transmission lines are low enough to cause negligible impact on ambient air quality.","PeriodicalId":227345,"journal":{"name":"IEEE Transactions on Power Apparatus and Systems","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127090719","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
Techniques for the Steady State Representation of Unbalanced Power Systems: Part I. A Systematic Building Block Approach to Network Modeling 不平衡电力系统的稳态表示技术:第一部分:网络建模的系统构建块方法
IEEE Transactions on Power Apparatus and Systems Pub Date : 1985-10-01 DOI: 10.1109/MPER.1985.5528695
M. Wortman, D. Allen, L. Grigsby
{"title":"Techniques for the Steady State Representation of Unbalanced Power Systems: Part I. A Systematic Building Block Approach to Network Modeling","authors":"M. Wortman, D. Allen, L. Grigsby","doi":"10.1109/MPER.1985.5528695","DOIUrl":"https://doi.org/10.1109/MPER.1985.5528695","url":null,"abstract":"The effects of interphase coupling in multiphase power systems become important in the presence of network topology imbalance and unbalanced phase loadings. Currents that flow in the earth can have significant effects on the system's behavior. Both of these effects of imbalance must be accounted for in an accurate model of a multiphase system.","PeriodicalId":227345,"journal":{"name":"IEEE Transactions on Power Apparatus and Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131219137","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: 22
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