2023 12th Asia-Pacific International Conference on Lightning (APL)最新文献_第7页

Partial Discharge Localization of Refined Bleached Deodorized Palm Oil (RBDPO) based on Acoustic Emission Method 基于声发射法的精制漂白脱臭棕榈油局部放电定位

2023 12th Asia-Pacific International Conference on Lightning (APL) Pub Date : 2023-06-12 DOI: 10.1109/APL57308.2023.10181667

N. D. Ahmad, Ahmad Hafiz Mohd Hashim, N. Azis, M. Talib, K. A. Rezali, N. H. Nik Ali, J. Jasni, Kozako Masahiro, M. Jamil

引用次数: 0

GIS based map drawing of soil corrosion to power grid earthing materials and analysis of main influencing factors 基于GIS的土壤腐蚀对电网接地材料的影响及主要影响因素分析

2023 12th Asia-Pacific International Conference on Lightning (APL) Pub Date : 2023-06-12 DOI: 10.1109/APL57308.2023.10182094

Zhizhong Li, Weimin Xia, H. Pan

{"title":"GIS based map drawing of soil corrosion to power grid earthing materials and analysis of main influencing factors","authors":"Zhizhong Li, Weimin Xia, H. Pan","doi":"10.1109/APL57308.2023.10182094","DOIUrl":"https://doi.org/10.1109/APL57308.2023.10182094","url":null,"abstract":"In order to disclose the effect of soil on the corrosion of earthing metal materials in power grid in Shaanxi Province, 152 stations with related soil environment are selected, and the corrosion data of four earthing metal materials including carbon steel, hot-dip galvanized steel, copper and copper-clad steel in different substations and external environments are measured. Then the average corrosion rate of four kinds of earthing metal materials in Shaanxi is calculated by weighing experiment. Based on geographic data information system (GIS), the environmental soil corrosion rate map of metal materials is drawn, and the average corrosion rate of earthing metal materials in substations of different cities in Shaanxi Province is compared and analyzed. Simultaneously, the main factors affecting the corrosion of metal materials are analyzed combining with soil properties parameters. The results show that the average annual soil corrosion rate of eastern region is higher than that of western area in Shaanxi Province after the earthing metal material buried one year. The average corrosion rate of copper and hot dip galvanized steel is slower than that of carbon steel. Comparatively, the corrosion rate in the substation is higher than that outside the station, and soil moisture, pH and chloride content have obvious effects on the corrosion rate. This result can provide reference for the design of earth power grid in Shaanxi Province.","PeriodicalId":371726,"journal":{"name":"2023 12th Asia-Pacific International Conference on Lightning (APL)","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126183848","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

Effect of Wiring Installation System on Overvoltage at the Distribution Boards of a Building Struck Directly by Lightning 配线安装系统对建筑物直雷击配电板过电压的影响

2023 12th Asia-Pacific International Conference on Lightning (APL) Pub Date : 2023-06-12 DOI: 10.1109/APL57308.2023.10181755

Qianling Liu, Hisho Nakamura, Yantao Huang, S. Yasui, Masaya Nakagawa, Tatsuya Yamamoto

引用次数: 0

Simulation analysis of the influence of multiple factors on lightning shielding characteristics between dense transmission lines 多因素对密电线路间雷电屏蔽特性影响的仿真分析

2023 12th Asia-Pacific International Conference on Lightning (APL) Pub Date : 2023-06-12 DOI: 10.1109/APL57308.2023.10182156

Zijian Li, Yao Yao, Zhiqiang Feng, Yeqiang Deng, Haochen Zhang, Yu Wang

引用次数: 0

Simulation analysis of lightning resistance level under different installation modes of lightning protection measures 不同防雷措施安装方式下的防雷水平仿真分析

2023 12th Asia-Pacific International Conference on Lightning (APL) Pub Date : 2023-06-12 DOI: 10.1109/APL57308.2023.10182193

Yao Yao, Zijian Li, Jianjin Fu, Xiankang Wang, Zhiqiang Feng, Xueming Zhou

引用次数: 0

Some Observations Pertaining to the Adequacy of Lightning Current Injection Tests to Aircraft 关于飞机闪电电流注入试验是否适当的一些意见

2023 12th Asia-Pacific International Conference on Lightning (APL) Pub Date : 2023-06-12 DOI: 10.1109/APL57308.2023.10181457

Surekha Jonnalagadda, U. Kumar

{"title":"Some Observations Pertaining to the Adequacy of Lightning Current Injection Tests to Aircraft","authors":"Surekha Jonnalagadda, U. Kumar","doi":"10.1109/APL57308.2023.10181457","DOIUrl":"https://doi.org/10.1109/APL57308.2023.10181457","url":null,"abstract":"Lightning strikes are responsible for some of the catastrophic airborne accidents. Design of suitable protection schemes requires prior knowledge of the current and field levels during a lightning strike. For assessing these quantities and for the validation of the design, lightning current injection tests are specified. Current tests are performed with components A to D which are specified in standards. Most of the tests are practical only at the component levels. For subjecting the whole aircraft to lightning tests, standards suggest a return conductor (RC) arrangement. The return conductor arrangement permits injection of current with magnitude and rise time specified in standards. However, in a natural environment, there is no such return path for current. Therefore, the lightning electromagnetic environment experienced by an aircraft during an actual lightning strike could be different from that simulated by laboratory tests. The present work aims to investigate this considering Standard Dynamics Model (SDM) aircraft. The impedance network method is employed for determining the current and voltage distribution for the current component A. It is shown that in the real environment, the voltage drop across the aircraft is much higher than that in a laboratory test. The inevitable use of the return conductor is responsible for the differences in the electromagnetic environment.","PeriodicalId":371726,"journal":{"name":"2023 12th Asia-Pacific International Conference on Lightning (APL)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127846839","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

Performance of Active Electrical Earthing Systems: Results and Discussion 有源电气接地系统的性能:结果与讨论

2023 12th Asia-Pacific International Conference on Lightning (APL) Pub Date : 2023-06-12 DOI: 10.1109/APL57308.2023.10182183

M. N. Hamzah, C. Gomes, M. Afiq, M. A. Ab. Kadir

引用次数: 1

Development and Application of the ±1100 kV UHV DC Transmission Line Arrester ±1100kv特高压直流输电线路避雷器的研制与应用

2023 12th Asia-Pacific International Conference on Lightning (APL) Pub Date : 2023-06-12 DOI: 10.1109/APL57308.2023.10182012

S. Gu, Shuai Wan, Zihao Liu, Jian Li, Min Wu, Wei Cao

{"title":"Development and Application of the ±1100 kV UHV DC Transmission Line Arrester","authors":"S. Gu, Shuai Wan, Zihao Liu, Jian Li, Min Wu, Wei Cao","doi":"10.1109/APL57308.2023.10182012","DOIUrl":"https://doi.org/10.1109/APL57308.2023.10182012","url":null,"abstract":"The ±1100kV “Jiquan” transmission line is the line with the highest voltage level DC transmission in China. It possesses important strategic value for the power transmission of large power grids across regions. In view of the urgent lightning protection needs of the “Jiquan” Line, this paper completed the parameter design and prototype development of the first ±1100 kV UHV DC transmission line arrester in the world by means of theoretical calculation and simulation analysis. Through a full set of type tests, the excellent performance of the arrester has been verified. Based on the structural stress analysis of typical towers in the “Jiquan” Line, this paper completes the design of the installation scheme of the arrester, and proposes a supported bracket reinforced by the suspension composite insulator. This on-site installation method meets the long-term safe and stable operation requirements. Finally, this paper realized the trial operation of ±1100kV UHV DC transmission line arrester. The research results of this paper are of great significance to the lightning protection of UHV DC transmission lines.","PeriodicalId":371726,"journal":{"name":"2023 12th Asia-Pacific International Conference on Lightning (APL)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131556248","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

Characteristics of Winter Lightning Frequency in Wakasa Bay, Japan 日本若狭湾冬季闪电频率特征

2023 12th Asia-Pacific International Conference on Lightning (APL) Pub Date : 2023-06-12 DOI: 10.1109/APL57308.2023.10182031

Tomonobu Shibuya, F. Suzuki, Yuichi Takahashi, Yasushi Watarai

{"title":"Characteristics of Winter Lightning Frequency in Wakasa Bay, Japan","authors":"Tomonobu Shibuya, F. Suzuki, Yuichi Takahashi, Yasushi Watarai","doi":"10.1109/APL57308.2023.10182031","DOIUrl":"https://doi.org/10.1109/APL57308.2023.10182031","url":null,"abstract":"Based on LIDEN (Lightning Detection Network System) data for four winters from 2017/18 to 2020/21, the distribution of lightning frequency was investigated in the Hokuriku to San’in regions including Wakasa Bay. The results showed that the density of lightning strikes was high along the coast of the Japan Sea from the western Noto Peninsula to the Echizen Coast and near Tsuruga, while the density was low in Wakasa Bay. Thus, we investigated typical cases in which lightning strikes were lower in Wakasa Bay than in the surrounding areas, especially around Mikuni area. The results showed that when thunderclouds approached Mikuni area, they tended to develop and form a stronger precipitation area than the surrounding, and the frequency of lightning strikes also increased. This suggests that the topography of the Mikuni area contributes to enhanced precipitation and lightning in this region. On the other hand, in the Wakasa Bay area, surface winds blowing into the Wakasa Bay from the surrounding land were frequently observed. Near Tsuruga on the east side of Wakasa Bay, the topography of the area makes the area near the ground a convergence field, and precipitation and lightning strikes are relatively strong. In contrast, the central to western part of Wakasa Bay tends to be a divergence field, which may contribute to the suppression of convection in this area. The relatively steep topography around Wakasa Bay may have contributed to the formation of this divergence field near the ground.","PeriodicalId":371726,"journal":{"name":"2023 12th Asia-Pacific International Conference on Lightning (APL)","volume":"1279 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116881035","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

Overvoltage caused by switching operation - a threat to SPDs 开关操作引起的过电压-对spd的威胁

2023 12th Asia-Pacific International Conference on Lightning (APL) Pub Date : 2023-06-12 DOI: 10.1109/APL57308.2023.10182016

R. Brocke, Christian Höhler

引用次数: 0