2015 International Symposium on Lightning Protection (XIII SIPDA)最新文献_第3页

Analysis of three-dimensional lightning data in a thunderstorm event 雷暴事件中三维闪电资料分析

2015 International Symposium on Lightning Protection (XIII SIPDA) Pub Date : 2015-11-30 DOI: 10.1109/SIPDA.2015.7339273

Feng Minxue, J. Xue, Z. Yingying, Yu Zhou

{"title":"Analysis of three-dimensional lightning data in a thunderstorm event","authors":"Feng Minxue, J. Xue, Z. Yingying, Yu Zhou","doi":"10.1109/SIPDA.2015.7339273","DOIUrl":"https://doi.org/10.1109/SIPDA.2015.7339273","url":null,"abstract":"With the three-dimensional lightning data, the relationship between lightning and radar, field mill data of thunderstorm on September 28th, 2014 is analyzed. The results show that, the lightning moves from north to south, mainly concentrated in the Jiangpu District, Jiangning District, Liuhe District and the center of Nanjing where lightning current is the strongest with the average of 31.06kA. During the development period of thunderstorm, cloud flash is relatively more active than cloud-ground flash, the occurrence of cloud flash indicates that the thunderstorm is coming and strengthening. Less lightning happen when echo scatters and low intensity, with the development of echo, lightning become intense, the combined reflective factor changes consistently with lightning. The change trend of lightning density is basically consistent with echo top height, the higher the echo top is, the more lightning happens. Lightning intensity changes slightly behind the echo top height. Before the first cloud flash, electric field changes quickly, with the sharp change of electric field, the thunderstorm becomes mature, lightning frequency increases rapidly until the storm dissipated, the electric field changes slowly, then lightning reduce. Three-dimensional lightning combined with other observation data, can be better used in the study of thunderstorm which has an important practical significance on the lightning monitoring and early warning.","PeriodicalId":296478,"journal":{"name":"2015 International Symposium on Lightning Protection (XIII SIPDA)","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127081303","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

Protection of people against lightning in open environments: Impact of publication of IEC Std 62793: “Protection Against Lightning - Thunderstorm Warning Systems” 开放环境中人员防雷。IEC标准62793:“防雷-雷暴警报系统”出版的影响

2015 International Symposium on Lightning Protection (XIII SIPDA) Pub Date : 2015-11-30 DOI: 10.1109/SIPDA.2015.7339306

Paulo Fernandes Costa, Timoteo Louis Costa

引用次数: 1

Calculation of backflashover outage rate of transmission lines: A discussion on traditional methodologies and recent advances 输电线路反闪断率的计算:传统方法与最新进展的讨论

2015 International Symposium on Lightning Protection (XIII SIPDA) Pub Date : 2015-11-30 DOI: 10.1109/SIPDA.2015.7339303

F. H. Silveira, S. Visacro, R. E. de Souza Filho

{"title":"Calculation of backflashover outage rate of transmission lines: A discussion on traditional methodologies and recent advances","authors":"F. H. Silveira, S. Visacro, R. E. de Souza Filho","doi":"10.1109/SIPDA.2015.7339303","DOIUrl":"https://doi.org/10.1109/SIPDA.2015.7339303","url":null,"abstract":"This work presents a discussion on the traditional methodologies presented by CIGRE and IEEE to calculate the lightning outage rate of high voltage transmission lines in terms of backflashover occurrence. The main aspects of such methodologies are reviewed. The simplifications and approximations adopted to determine the outage rate are discussed. Systematic simulations are developed considering a typical 138-kV line configuration. The obtained results in terms of peak overvoltage, critical current and backflashover rate are compared with those obtained by an advanced methodology composed by an accurate electromagnetic model (HEM) to calculate the overvoltage across insulator strings and an elaborate model (Disruptive effect - DE) to evaluate the flashover occurrence across insulators. Very distinct backflashover outage rates were presented. In general, CIGRE and IEEE methodologies yield large and lower outage rate, respectively, in comparison to those estimated by the advanced methodology. The results indicate the need of incorporating the recent advances of the area in the calculation of outage rate, aiming the improvement of the quality of the results given by traditional methodologies.","PeriodicalId":296478,"journal":{"name":"2015 International Symposium on Lightning Protection (XIII SIPDA)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133371556","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

Degradation analysis of MOV type SPDs with surge supurposing AC operating voltage 交流工作电压下浪涌MOV型spd的退化分析

2015 International Symposium on Lightning Protection (XIII SIPDA) Pub Date : 2015-11-30 DOI: 10.1109/SIPDA.2015.7339323

A. Rousseau, Fernanda Cruz, Xuyun Zang, Lu Dongbo

引用次数: 3

Lightning induced voltages in large loops 大回路中雷电感应电压

2015 International Symposium on Lightning Protection (XIII SIPDA) Pub Date : 2015-11-30 DOI: 10.1109/SIPDA.2015.7339276

J. Paulino, Pedro Campos Assuncao, C. Barbosa

引用次数: 4

Electromagnetic interferences analysis in inhabited rights of way 有人居住路权的电磁干扰分析

2015 International Symposium on Lightning Protection (XIII SIPDA) Pub Date : 2015-11-30 DOI: 10.1109/SIPDA.2015.7339309

Maryory Aixa Rojas Camargo, F. J. Campos

引用次数: 0

Detection of M-components and return strokes in upward and downward lightning flashes 检测向上和向下闪电中的 M-成分和回波冲程

2015 International Symposium on Lightning Protection (XIII SIPDA) Pub Date : 2015-11-30 DOI: 10.1109/SIPDA.2015.7339322

A. Paiva, M. Saba, K. Naccarato, C. Schumann, R. Jaques, M. A. Ferro

{"title":"Detection of M-components and return strokes in upward and downward lightning flashes","authors":"A. Paiva, M. Saba, K. Naccarato, C. Schumann, R. Jaques, M. A. Ferro","doi":"10.1109/SIPDA.2015.7339322","DOIUrl":"https://doi.org/10.1109/SIPDA.2015.7339322","url":null,"abstract":"This work aimed to investigate which pulses (M-components and/or subsequent return stroke) of the upward lightning are detected by BrasilDAT lightning location network. It was found that, these pulses are similar to downward lightning pulses and therefore, they were well detected by the network. This report is based on a set of 29 upward lightning and 16 downward lightning whose strike points are known. All lightning used were recorded in the Jaraguá Peak region. High-speed cameras and electric field sensors were used in this analysis to find out the rise time of the waveform and the peak value of the electric field. The comparison with the pulses of the downward lightning recorded by cameras allowed us to validate the BrasilDAT network, determining the detection efficiency and location error. We found a detection efficiency of 37-56%, and a location error of approximately 600 meters. It was observed that the M components of the upward lightning resemble the subsequent return strokes of the downward lightning because the luminosity prior to the pulse is low and the rise time of the electric field waveform is short. The current peaks of the pulses of the upward and downward lightning were intense. These facts explain why BrasilDAT captured these pulses, since the networks tend to discard pulses with low intensity and long rise times.","PeriodicalId":296478,"journal":{"name":"2015 International Symposium on Lightning Protection (XIII SIPDA)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126569077","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

Soil resistivity behavior under high current density values using the Energy Balance method 利用能量平衡法研究高电流密度值下土壤电阻率行为

2015 International Symposium on Lightning Protection (XIII SIPDA) Pub Date : 2015-11-30 DOI: 10.1109/SIPDA.2015.7339331

V. L. Coelho, Lucas Fritzen Venturini, H. Almaguer, R. A. Coelho, A. Piantini, W. Boaventura, J. Paulino, Plínio Luiz Nosaki

引用次数: 3

Influence of XLPE-covered cables on the impulse withstand voltage of a single-phase structure used in compact distribution lines 交联聚乙烯包覆电缆对紧凑配电线路单相结构抗冲击电压的影响

2015 International Symposium on Lightning Protection (XIII SIPDA) Pub Date : 2015-11-30 DOI: 10.1109/SIPDA.2015.7339287

Guilherme S. Lima, Rafael M. Gomes, Ronaldo E. S. Filho, A. De Conti, F. H. Silveira, S. Visacro, W. A. Souza

引用次数: 5

Protection of safety installations for nuclear sites 核设施安全设施保护

2015 International Symposium on Lightning Protection (XIII SIPDA) Pub Date : 2015-11-30 DOI: 10.1109/SIPDA.2015.7339290

A. Rousseau, Nicolas Autipout, Nicolas Peyrus, Patrick Eustachon

引用次数: 0