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2011 International Symposium on Lightning Protection最新文献

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Comparative lightning current measurements on Gaisberg Tower 盖斯伯格塔雷电电流比较测量
2011 International Symposium on Lightning Protection Pub Date : 2011-12-01 DOI: 10.1109/SIPDA.2011.6088450
J. Birkl, T. Bohm, Edward Schulzhenko, P. Zahlmann, G. Diendorfer, H. Pichler
{"title":"Comparative lightning current measurements on Gaisberg Tower","authors":"J. Birkl, T. Bohm, Edward Schulzhenko, P. Zahlmann, G. Diendorfer, H. Pichler","doi":"10.1109/SIPDA.2011.6088450","DOIUrl":"https://doi.org/10.1109/SIPDA.2011.6088450","url":null,"abstract":"Comparison measurements with a mobile lightning current detection system and measuring station used for scientific purposes were carried out. The mobile system including sensors, data acquisition and transmission are described. The lightning current parameters recorded during comparative measurements are analyzed. The results are in line with the lightning current statistics. Mainly upward initiated flashes were measured.","PeriodicalId":277573,"journal":{"name":"2011 International Symposium on Lightning Protection","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122430648","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
Lightning discharge channel in reduced model: The lossy channel 简化模型中的雷电放电通道:损耗通道
2011 International Symposium on Lightning Protection Pub Date : 2011-12-01 DOI: 10.1109/SIPDA.2011.6088467
D. A. Lopes, W. Boaventura
{"title":"Lightning discharge channel in reduced model: The lossy channel","authors":"D. A. Lopes, W. Boaventura","doi":"10.1109/SIPDA.2011.6088467","DOIUrl":"https://doi.org/10.1109/SIPDA.2011.6088467","url":null,"abstract":"The reduced model is a method to study lightning by means of analog simulation. This method reproduces in laboratory or in appropriate conditions the real phenomenon, in scale. The most papers using the reduced model use a lossless channel to model the discharge channel. This paper proposes to evaluate an alternative model to the discharge channel: the lossy channel. The benefits of using such a model is to avoid the current waves reflection at the top of the channel. This allows a model with reduced dimensions. On the other hand this model can also model the real channel losses appropriately.","PeriodicalId":277573,"journal":{"name":"2011 International Symposium on Lightning Protection","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131436661","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
Capacity of carrying lightning currents in LPS copper cables and connectors experimental verifications LPS铜电缆和连接器中承载雷电电流的能力实验验证
2011 International Symposium on Lightning Protection Pub Date : 2011-12-01 DOI: 10.1109/SIPDA.2011.6088428
H. E. Sueta, M. Shigihara, L. E. Caires, G. Burani, J. Modena
{"title":"Capacity of carrying lightning currents in LPS copper cables and connectors experimental verifications","authors":"H. E. Sueta, M. Shigihara, L. E. Caires, G. Burani, J. Modena","doi":"10.1109/SIPDA.2011.6088428","DOIUrl":"https://doi.org/10.1109/SIPDA.2011.6088428","url":null,"abstract":"This paper presents the results of a series of tests on patches of bare copper cable, usually used in LPS to check their ability to conduct lightning currents.","PeriodicalId":277573,"journal":{"name":"2011 International Symposium on Lightning Protection","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130413883","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
A new method for the estimation of the number of upward flashes from tall structures 一种估算高层结构上闪数的新方法
2011 International Symposium on Lightning Protection Pub Date : 2011-12-01 DOI: 10.1109/SIPDA.2011.6088466
A. Smorgonskiy, F. Rachidi, M. Rubinstein, G. Diendorfer, W. Schulz, N. Korovkin
{"title":"A new method for the estimation of the number of upward flashes from tall structures","authors":"A. Smorgonskiy, F. Rachidi, M. Rubinstein, G. Diendorfer, W. Schulz, N. Korovkin","doi":"10.1109/SIPDA.2011.6088466","DOIUrl":"https://doi.org/10.1109/SIPDA.2011.6088466","url":null,"abstract":"A new method to estimate the number of upward flashes from tall structures is presented. The method is based on the analysis of the data provided by lightning location systems (LLS) and thus could be applied for any tall structure located in the region covered by a LLS. About 80 tall objects in Europe with heights ranging from 100 m to 300 m were selected for the analysis. LLS data for a period of 10 years on flashes within circles of 8 km around each object were exported from the EUCLID network database and analyzed. The number of upward flashes for each considered structure was estimated and the obtained results were compared with those calculated using the empirical formula of Eriksson. For towers located on hilly terrain, the physical height of the structure was replaced by its effective height determined according to the IEC recommendation. The obtained results follow the trend predicted by Eriksson's formula. However, significant dispersion is observed. This dispersion might be attributed essentially to meteorological and geological factors associated with different objects.","PeriodicalId":277573,"journal":{"name":"2011 International Symposium on Lightning Protection","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121251344","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
Theoretical and practical comparison of shielding wire's position in 132 kV and 500 kV transmission lines in Argentina 阿根廷132kv与500kv输电线路屏蔽线位置的理论与实践比较
2011 International Symposium on Lightning Protection Pub Date : 2011-12-01 DOI: 10.1109/SIPDA.2011.6088449
Héctor L. Soibelzon, Julieta Z. Vernieri
{"title":"Theoretical and practical comparison of shielding wire's position in 132 kV and 500 kV transmission lines in Argentina","authors":"Héctor L. Soibelzon, Julieta Z. Vernieri","doi":"10.1109/SIPDA.2011.6088449","DOIUrl":"https://doi.org/10.1109/SIPDA.2011.6088449","url":null,"abstract":"The aim of this paper is to analise theoretical methods of shielding protection techniques in transmission lines and their correspondance with practical use in Argentina. The frequent practice of shielding wire positioning observed in the field is compared with the position obtained by applying classic and modern methods. The paper concludes that the “Electrogeometric Model” (EGM) matches pretty well with practical use in 500 kV power lines, while this method leads to unpractical and uneconomic results in 132 kV lines.","PeriodicalId":277573,"journal":{"name":"2011 International Symposium on Lightning Protection","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128470788","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
Impulsive currents and voltages induced into loops due to nearby lightning 由附近雷电引起的脉冲电流和电压
2011 International Symposium on Lightning Protection Pub Date : 2011-12-01 DOI: 10.1109/SIPDA.2011.6088471
A. Panicali, C. Barbosa
{"title":"Impulsive currents and voltages induced into loops due to nearby lightning","authors":"A. Panicali, C. Barbosa","doi":"10.1109/SIPDA.2011.6088471","DOIUrl":"https://doi.org/10.1109/SIPDA.2011.6088471","url":null,"abstract":"This paper presents the effect of considering propagation delays and displacement currents in the calculation of currents and voltages induced into loops due to nearby lightning flashes. Results from numerical calculation, based on a more complete electromagnetic formulation (Method of Moments — MoM) are compared with results from a quasi-stationary approach. It is shown that the voltages induced into loops by very fast currents, such as the subsequent lightning strokes, can be significantly influenced by the displacement currents and propagation delays. This effect depends also on the loop dimensions and its earthing configuration. In the example considered in this paper, the induced voltage reached a peak value one-third above the peak value calculated by magnetic induction only, besides exhibiting oscillatory wave forms. This increase in the magnitude and change of the induced voltage waveform may impact the design of clearance distances and, under specific conditions, may also jeopardize electronic equipment that otherwise would be considered safe based on the quasi-stationary approach.","PeriodicalId":277573,"journal":{"name":"2011 International Symposium on Lightning Protection","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128899277","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
Influence of the return stroke velocity and the statistical method used in distribution lines indirect lightning performance estimation considering the ground resistivity 考虑地电阻率的配电线路间接雷击性能估计中回击速度的影响及统计方法
2011 International Symposium on Lightning Protection Pub Date : 2011-12-01 DOI: 10.1109/SIPDA.2011.6088422
R. P. Souza, I. Lopes, J. Paulino
{"title":"Influence of the return stroke velocity and the statistical method used in distribution lines indirect lightning performance estimation considering the ground resistivity","authors":"R. P. Souza, I. Lopes, J. Paulino","doi":"10.1109/SIPDA.2011.6088422","DOIUrl":"https://doi.org/10.1109/SIPDA.2011.6088422","url":null,"abstract":"Disturbances to power distribution lines are mainly caused by lightning. Due to the random nature of lightning, the estimation of overhead distribution lines lightning performance is obtained by statistical methods. This paper investigates the influence of the return stroke velocity and the statistical method used to estimate the indirect lightning flashover rates of overhead distribution lines.","PeriodicalId":277573,"journal":{"name":"2011 International Symposium on Lightning Protection","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123062933","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
Surge withstand capability of metal oxide varistors for 10/350 µ s waveform 10/350µs波形下金属氧化物压敏电阻抗浪涌能力
2011 International Symposium on Lightning Protection Pub Date : 2011-12-01 DOI: 10.1109/SIPDA.2011.6088452
N. Tsukamoto
{"title":"Surge withstand capability of metal oxide varistors for 10/350 µ s waveform","authors":"N. Tsukamoto","doi":"10.1109/SIPDA.2011.6088452","DOIUrl":"https://doi.org/10.1109/SIPDA.2011.6088452","url":null,"abstract":"Lightning protection using surge protective devices (SPDs) have an important role for reliability of power delivery in current advanced information technology society. SPDs are categorized by 3 test class (Class I, II and III) according to IEC 61643-11) [1]. Especially, because class I SPDs intend to install at the entrance of power line according to IEC 61643-12) [2], it is important how big current SPD withstands. As components of SPD in Low voltage power distribution system, metal oxide varistors (MOVs) and/or spark gaps (GDT) were mainly used. SPDs with MOVs are voltage limiting type and have some merits as follows compared to that with GDT. • Capability of cut off the follow current • Lower residual voltage • Quickly response However, from surge withstand capability of the view, it is easy for MOVs to degrade its electrical characteristics by surge current because it translates from surge energy to heat itself. This point is a drawback for MOVs. This study describes the degradation mechanism of MOVs by surge impulses and the approaches for high and stable surge withstand capability through 10/350us impulse test results.","PeriodicalId":277573,"journal":{"name":"2011 International Symposium on Lightning Protection","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132758985","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
Design and construction of a system for detection of lightning discharges on power transmission lines 设计和建造输电线雷电放电检测系统
2011 International Symposium on Lightning Protection Pub Date : 2011-12-01 DOI: 10.1109/SIPDA.2011.6088419
Emmanuel A. de B. Santos, Antonio J. B. de Oliveira, M. T. de Melo, J. D. C. e Silva, J. F. A. G. Wavrik
{"title":"Design and construction of a system for detection of lightning discharges on power transmission lines","authors":"Emmanuel A. de B. Santos, Antonio J. B. de Oliveira, M. T. de Melo, J. D. C. e Silva, J. F. A. G. Wavrik","doi":"10.1109/SIPDA.2011.6088419","DOIUrl":"https://doi.org/10.1109/SIPDA.2011.6088419","url":null,"abstract":"One of the main concerns of the electric energy generation and distribution operators is the occurrence of atmospheric discharge on the transmission line system. Lightning strikes give rise to transients that can cause damage, affecting the quality of the electric energy and in many cases bringing down the system. This paper describes the conception and experimental results of an electronic system which detects the presence, intensity and location of an atmospheric discharge on a tower or span of a transmission line. A Rogowski coil, simple electronic components, microcontrollers and transceivers build up the proposed system.","PeriodicalId":277573,"journal":{"name":"2011 International Symposium on Lightning Protection","volume":"52 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131491256","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
Recent progress in lightning return stroke modeling and electromagnetic field computation 雷击回波建模与电磁场计算研究进展
2011 International Symposium on Lightning Protection Pub Date : 2011-12-01 DOI: 10.1109/SIPDA.2011.6088436
F. Rachidi
{"title":"Recent progress in lightning return stroke modeling and electromagnetic field computation","authors":"F. Rachidi","doi":"10.1109/SIPDA.2011.6088436","DOIUrl":"https://doi.org/10.1109/SIPDA.2011.6088436","url":null,"abstract":"This review paper summarizes recent progress in lightning return stroke modeling and electromagnetic field computational methods. Recent work on electromagnetic and distributed-circuit models concerns essentially the inclusion of distributed nonlinearities along the channel. The nonlinear versions of electromagnetic and distributed-circuit models are able to reproduce experimentally-observed typical features of electromagnetic fields, especially the zero crossing of the remote fields. The equivalency between lumped-source and distributed-source models was the subject of recent investigations on engineering models, which have led to physical insight into the physics of lightning channel corona sheath. Other advances in engineering models concern a rigorous analysis of wave propagation along an extending transmission line which resulted in a revision of engineering models taking into account the reflections from the return stroke wavefront. The reflections are shown to be affected by relativistic Doppler effect. Recent studies on the identification of the main mechanisms responsible for the time of occurrence of the reversal of polarity in the far fields are described. Finally, the paper summarizes computational methods for the evaluation of electromagnetic fields along a lossy ground, with special emphasis on recent studies related to the case of inhomogeneous (vertically and horizontally stratified) ground.","PeriodicalId":277573,"journal":{"name":"2011 International Symposium on Lightning Protection","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130973374","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
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