2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)最新文献_第3页

A Modified Simulation Model Using FEM for Monitoring Transformer Insulation Health Under Non Uniform Aging 非均匀老化下变压器绝缘健康监测的改进有限元仿真模型

2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2022-10-30 DOI: 10.1109/CEIDP55452.2022.9985310

Nisha Thanua, G. Kumbhar

引用次数: 0

A Power Cable Thermal Aging Insulation Resistance Degradation Model 电力电缆热老化绝缘电阻退化模型

2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2022-10-30 DOI: 10.1109/CEIDP55452.2022.9985388

Xufei Ge, M. Given, Brian G. Stewart

引用次数: 0

The Improvement in Electrical Properties of RTV Silicone Rubber by the Introduction of TiO₂ Nanocomposite 引入tio2纳米复合材料对RTV硅橡胶电性能的改善

2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2022-10-30 DOI: 10.1109/CEIDP55452.2022.9985307

Wenxin Gao, Jingrui Zhang, M. Wei, Dai Wan, Yang Wang, Yan Du

{"title":"The Improvement in Electrical Properties of RTV Silicone Rubber by the Introduction of TiO₂ Nanocomposite","authors":"Wenxin Gao, Jingrui Zhang, M. Wei, Dai Wan, Yang Wang, Yan Du","doi":"10.1109/CEIDP55452.2022.9985307","DOIUrl":"https://doi.org/10.1109/CEIDP55452.2022.9985307","url":null,"abstract":"The room temperature vulcanized silicone rubber coating (RTV) is one of the most extensively used materials to improve the performance of composite insulator due to its preferable dielectric properties. However, the complex operating environment may lead to the degradation of RTV coating. In this paper, the effect of doping ratio of TiO2 nanoparticles on the electrical properties of RTV coatings was investigated. The TiO2 nanoparticles were modified by $gamma$-Methacryloxypropyltrim-ethoxylsilane (KH570) and then added to the RTV composites with different doping ratios. The morphology, chemical structure and dispersity of the modified TiO2 were measured with SEM and Fourier FTIR methods. In addition, the characteristic of surface potential attenuation and flashover voltage of the TiO2/RTV composite materials were studied systematically. The results showed that TiO2 nanoparticles were uniformly dispersed in RTV coating and the -CH2-, Si-O-C and other functional groups were grafted on the TiO2 successfully. Besides, the number of surface deep traps increased due to the TiO2, nanoparticles which increased the flashover voltage of composite polymers. Based on the experiment, it was verifed that the addition of 3wt% TiO2/RTV composite could be an attractive approach to improve the electrical properties.","PeriodicalId":374945,"journal":{"name":"2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131706676","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

Temperature Distribution Simulation in an MV Switchgear Bus Bar Chamber 中压开关柜母线室温度分布仿真

2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2022-10-30 DOI: 10.1109/CEIDP55452.2022.9985350

Mijodrag Miljanovic, Martin Kearns, Brian G. Stewart

引用次数: 0

Effects of Volatile Compounds on Breakdown Field Strength Measurements of Polymers 挥发性化合物对聚合物击穿场强测量的影响

2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2022-10-30 DOI: 10.1109/CEIDP55452.2022.9985347

Megan Loveland DeWaal, J. R. Dennison

引用次数: 0

Effect of Aging on the Dielectric Performance of Synthetic Ester-based Nano-oils 老化对合成酯基纳米油介电性能的影响

2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2022-10-30 DOI: 10.1109/CEIDP55452.2022.9985379

A. A. Khan, Suhaib Ahmad Khan, M. Tariq

引用次数: 0

Introducing materials informatics to dielectrics design 将材料信息学引入电介质设计

2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2022-10-30 DOI: 10.1109/CEIDP55452.2022.9985380

M. Sato

{"title":"Introducing materials informatics to dielectrics design","authors":"M. Sato","doi":"10.1109/CEIDP55452.2022.9985380","DOIUrl":"https://doi.org/10.1109/CEIDP55452.2022.9985380","url":null,"abstract":"It has become increasingly common to use machine learning techniques for discovering and designing novel materials. Big data enables machine learning techniques to make accurate predictions. However, experimental data are not abundant especially in the case of dielectric properties. In addition, the properties of polymers depend not only on the structure of monomers but also on the length of polymers, morphology, additives, and so on which further complicates the problem. Here, we review our latest research outcomes that are related to computational and data-driven dielectric materials design. First, we show how we were able to accurately predict the dielectric properties of gases using a small data set and further discover new molecules that can potentially outperform existing SF6 alternative gases. Then we show that by proper feature engineering it is possible to predict the thermal and electrical properties of polymer/inorganic filler composites. The main findings are as follows: (1) in line with our intuition, in general, accurate prediction of dielectric properties is difficult compared to the prediction of thermal or mechanical properties, (2) the process condition has an especially great impact on the electric properties of polymers, (3) with the knowledge of the underlying physics affecting the macroscopic properties, one can predict the dielectric properties of various materials with reasonable accuracy, (4) machine learning helps us understand the factors that control the dielectric properties, and (5) it can also be used to guide experiments or to provide testing standards.","PeriodicalId":374945,"journal":{"name":"2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125167614","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

Breakdown Sites in MIM Structures MIM结构中的故障点

2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2022-10-30 DOI: 10.1109/CEIDP55452.2022.9985281

H. Kliem

引用次数: 0

Evaluation of solid insulating paper properties aged in natural ester and mineral insulating oil 固体绝缘纸在天然酯和矿物绝缘油中老化性能的评价

2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2022-10-30 DOI: 10.1109/CEIDP55452.2022.9985321

H. Wilhelm, P. Fernandes, L. Dill, K. Moscon, M. A. Marín, G. F. Moraes, T. Marchesan, V. Bender

{"title":"Evaluation of solid insulating paper properties aged in natural ester and mineral insulating oil","authors":"H. Wilhelm, P. Fernandes, L. Dill, K. Moscon, M. A. Marín, G. F. Moraes, T. Marchesan, V. Bender","doi":"10.1109/CEIDP55452.2022.9985321","DOIUrl":"https://doi.org/10.1109/CEIDP55452.2022.9985321","url":null,"abstract":"This study was carried out in order to evaluate properties of new insulating paper (Hybrid paper or HP, aramid/cellulose composite) and thermally upgraded kraft paper (TUK) during ageing at 165 and $185 ^{circ}text{C}$ in natural ester (NE, corn-based oil) and mineral insulating oil (MIO). Results will be complementary to a detailed and critical study to determine Arrhenius life curve for the liquid immersed transformer insulation system composed of NE and MIO in combination with TUK and HP. Accelerated ageing tests were carried out in laboratory for the HP, according to IEEE C57.100 standard, revised in 2011. Tests were conducted with MIO and with NE. A commercially available TUK paper was used as a reference, which was subjected to the same test condition. In this study, preliminary paper properties observed in TUK/NE, TUK/ MIO, HP/NE, HP/MIO insulation systems at temperatures of 165 and $185 ^{circ}text{C}$ are described. Degree of polymerization (DP), tensile testing and infrared analysis were performed on aged papers. HP presented a better performance in relation to TUK, in both oils. Furthermore, in NE slower degradation was observed for both papers at 165 and $185 ^{circ}text{C}$. Infrared spectroscopy analysis of aged papers showed that there was no transesterification reaction in both papers aged in insulating liquids (NE or MIO).","PeriodicalId":374945,"journal":{"name":"2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122414935","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 pulse voltage slew rate on the uniformity of polypropylene surface hydrophilic modification by nanosecond pulsed dielectric barrier discharge 脉冲电压转换率对纳秒脉冲介质阻挡放电聚丙烯表面亲水性改性均匀性的影响

2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2022-10-30 DOI: 10.1109/CEIDP55452.2022.9985297

Shuhao Li, Yanbo Ding, Yulei Zhao, Junxian Yu, Feng Liu, Z. Fang

{"title":"Effect of pulse voltage slew rate on the uniformity of polypropylene surface hydrophilic modification by nanosecond pulsed dielectric barrier discharge","authors":"Shuhao Li, Yanbo Ding, Yulei Zhao, Junxian Yu, Feng Liu, Z. Fang","doi":"10.1109/CEIDP55452.2022.9985297","DOIUrl":"https://doi.org/10.1109/CEIDP55452.2022.9985297","url":null,"abstract":"To improve the hydrophilicity of polypropylene (PP) surface and the uniformity of the treatment effect, the nanosecond pulsed nitrogen dielectric barrier discharge (DBD) is used to process PP surface. The discharge characteristics of the DBD with different pulse rise times (from 50 ns to 500 ns) are investigated by electrical and optical diagnostic methods and the corresponding treatment effect and uniformity of the treated PP surfaces are characterized by measuring the value and radial distribution of the water contact angle (WCA) cross the PP surface. The results show that when the pulse rise time is 50 ns, not only the discharge become more uniform but also the emission spectral intensity is higher compared to other conditions. For hydrophilic modification effect, as the pulse rise time increases from 50 ns to 500 ns, the WCA average values changes from 47° to 55°. And for the uniformity of the PP surface treatment, the results show that the uniformity of the DBD-treated PP surface under 50 ns pulse rise time (3° variation). The faster pulse voltage slew rate enhances the reduced field in discharge space and promote the electron avalanche fusion, which leads to better discharge and treatment uniformities.","PeriodicalId":374945,"journal":{"name":"2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117112571","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