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2015 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)最新文献

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Space charge dynamic properties of oil-paper insulation during aging process at pulsating DC voltage 脉动直流电压下油纸绝缘老化过程中的空间电荷动态特性
2015 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2015-12-17 DOI: 10.1109/CEIDP.2015.7352156
Wenling Yang, Jian Li, Jing Zhang, Sicheng Wu
{"title":"Space charge dynamic properties of oil-paper insulation during aging process at pulsating DC voltage","authors":"Wenling Yang, Jian Li, Jing Zhang, Sicheng Wu","doi":"10.1109/CEIDP.2015.7352156","DOIUrl":"https://doi.org/10.1109/CEIDP.2015.7352156","url":null,"abstract":"Valve side windings of the converter transformer withstand pulsating DC voltage. Space charges accumulate in oil-paper during HVDC converter transformers operation, which is often responsible of insulation failure. To clarify the dynamic properties of space charge, this paper processed the oil-paper with the electrical-thermal aging test at 90 °C and7.6 kV pulsating DC and AC voltage respectively. The behaviors of space charges in aged oil-paper samples were investigated by pulsed electro-acoustic (PEA) technique. It is concluded that the DC component of pulsating DC voltage facilitates the negative charges injection from the cathode, which leads to the accumulation of hetero-charges near anode. Moreover, deep traps excited by the DC component of the pulsating DC aging voltage slightly outnumber by the AC aging voltage, and also the probability of space charges falling into deep traps is bigger when the oil-paper suffers the pulsating DC voltage.","PeriodicalId":432404,"journal":{"name":"2015 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129282334","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
Rubbing treatment before chemical surface modification enhances deep trapping of positive charge on polytetrafluoroethylene (PTFE) electrets 化学表面改性前的摩擦处理增强了聚四氟乙烯(PTFE)驻极体正电荷的深度捕获
2015 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2015-12-17 DOI: 10.1109/CEIDP.2015.7352080
D. Rychkov, R. Gerhard, V. Ivanov, A. Kuznetsov, A. Rychkov
{"title":"Rubbing treatment before chemical surface modification enhances deep trapping of positive charge on polytetrafluoroethylene (PTFE) electrets","authors":"D. Rychkov, R. Gerhard, V. Ivanov, A. Kuznetsov, A. Rychkov","doi":"10.1109/CEIDP.2015.7352080","DOIUrl":"https://doi.org/10.1109/CEIDP.2015.7352080","url":null,"abstract":"In order to achieve significant improvements of their electret stability, we have developed a two-stage procedure for the surface modification of PTFE films. In the first stage, the reactivity of the polymer surface is increased by means of rubbing with a dielectric counter-body. In the second stage, titanium-containing nanostructures are formed by treating the tribo-activated polymer-film surface with titanium-tetrachloride (TiCl4) vapor. The samples are then comprehensively studied by means of X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and thermally stimulated surface potential decay (TSPD).","PeriodicalId":432404,"journal":{"name":"2015 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116739543","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
Dielectric and partial discharge investigations on aged medium voltage underground power cables 老化中压地下电力电缆的介电和局部放电研究
2015 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2015-12-17 DOI: 10.1109/CEIDP.2015.7352119
Saravanakumar Arumugam, M. Bogaczyk, S. Gorchakov, R. Kozakov, K. Weltmann
{"title":"Dielectric and partial discharge investigations on aged medium voltage underground power cables","authors":"Saravanakumar Arumugam, M. Bogaczyk, S. Gorchakov, R. Kozakov, K. Weltmann","doi":"10.1109/CEIDP.2015.7352119","DOIUrl":"https://doi.org/10.1109/CEIDP.2015.7352119","url":null,"abstract":"This paper investigates on dielectric and partial discharge (PD) condition of aged XLPE insulated, medium voltage underground cables rated 20 kV, acquired on-site. The extracted samples have suffered PD and failed at different instants. First, the cable samples are grouped as per their timeline of failure. Following this, the dielectric integrity of the cable samples are assessed through modern diagnostic test methods over wide frequency. This implies involving dielectric response analysis and PD measurements respectively. The dielectric integrity of chosen samples are ascertained through frequency dependent dielectric properties. The PD measurements include recording the PD level or apparent charge level (QIEC) of chosen samples and analyzing their respective phase resolved PD pattern. Following this, the information of real time PD signals are transformed to frequency domain and analyzed. Altogether, the findings from all these measurements collectively describe the characteristics of chosen cable samples. In conclusion, it is believed that such an attempt might provide a deep insight in improving the present interpretation strategies.","PeriodicalId":432404,"journal":{"name":"2015 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114319351","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
Preparation of a superhydrophobic surface by RF magnetron sputtering and its anti-icing performance 射频磁控溅射制备超疏水表面及其防冰性能
2015 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2015-12-17 DOI: 10.1109/CEIDP.2015.7351990
Aoyun Zhuang, R. Liao, Chao Guo, Zhiping Zuo, Yuan Yuan
{"title":"Preparation of a superhydrophobic surface by RF magnetron sputtering and its anti-icing performance","authors":"Aoyun Zhuang, R. Liao, Chao Guo, Zhiping Zuo, Yuan Yuan","doi":"10.1109/CEIDP.2015.7351990","DOIUrl":"https://doi.org/10.1109/CEIDP.2015.7351990","url":null,"abstract":"In this study, a nano-structured surface was prepared on glass slides by RF magnetron sputtering with zinc target. The superhydrophobicity of the surface was highly improved after thermal oxidation and decorated by hexadecyltrimethoxysilane. Field emission scanning electron microscopy (FESEM) and energy dispersive spectrometer (EDS) were utilized to evaluate the surface morphology, element types and levels of the samples. A portable low-temperature test chamber was used to investigate the anti-icing performance of the superhydrophobic surface and record the collision process of a cooling water drop to the sample surface by high-speed camera. The results showed that the frozen temperature of water droplet on the superhydrophobic surface was much lower than that of droplet on the bare glass. This study offers insight into understanding the anti-icing behavior of the superhydrophobic surface and may favor the application of superhydrophobic surfaces in power transmission system against ice accumulation.","PeriodicalId":432404,"journal":{"name":"2015 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114776416","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
Fluctuation and change of partial discharge inception voltage under high humidity for rectangular wire motors 高湿条件下矩形线电机局部放电起始电压的波动与变化
2015 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2015-12-17 DOI: 10.1109/CEIDP.2015.7351997
T. Wakimoto, H. Kojima, N. Hayakawa
{"title":"Fluctuation and change of partial discharge inception voltage under high humidity for rectangular wire motors","authors":"T. Wakimoto, H. Kojima, N. Hayakawa","doi":"10.1109/CEIDP.2015.7351997","DOIUrl":"https://doi.org/10.1109/CEIDP.2015.7351997","url":null,"abstract":"This paper aims to clarify the mechanism of fluctuation and change characteristics in the partial discharge inception voltage (PDIV) between motor coils constructed from rectangular wires under high humidity environments. To achieve this, the PDIV at 50Hz after pre-discharge between the coil wires were measured at 90% RH for a motor stator and test pieces, both of which were composed of rectangular wires. Electric field analyses were performed for several contact patterns between the rectangular wires for different values of surface conductivity. As the results, we clarified that the PDIV fluctuation and change in rectangular wire motors under high humidity can be caused by a superposition of the various PDIV characteristics for each contact pattern between the coil wires in the motor.","PeriodicalId":432404,"journal":{"name":"2015 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"56 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116578835","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
The molecular dynamic simulation investigation of the dispersion stability of nano-modified transformer oil 纳米改性变压器油分散稳定性的分子动力学模拟研究
2015 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2015-12-17 DOI: 10.1109/CEIDP.2015.7352021
Jianzhuo Dai, M. Dong, Fuxin Wen, Li Wang, M. Ren
{"title":"The molecular dynamic simulation investigation of the dispersion stability of nano-modified transformer oil","authors":"Jianzhuo Dai, M. Dong, Fuxin Wen, Li Wang, M. Ren","doi":"10.1109/CEIDP.2015.7352021","DOIUrl":"https://doi.org/10.1109/CEIDP.2015.7352021","url":null,"abstract":"The dispersion stability of nano-modified transformer oil with the greater thermal conductivity and dielectric strength is a difficulty to be investigated. In order to have a deep understanding of the stable mechanism of nano-modified transformer oil, the total interaction energy was calculated by the molecular dynamic (MD) simulation based on the DLVO theory. A COMPASS force field was employed, and periodic boundary conditions were defined to build a MD simulation model of the nano-modified transformer oil. After the energy barrier and primary minimum energy were both considered, the optimal size of nanoparticles was determined for intrinsically stable suspensions in transformer oil. The results accurately estimated the best diameter of Al2O3 nanoparticles is 18nm for intrinsically stable dispersions of nanoparticles in transformer oil.","PeriodicalId":432404,"journal":{"name":"2015 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121047368","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
The effect of thermal gradient on space charge pattern in XLPE 热梯度对交联聚乙烯空间电荷模式的影响
2015 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2015-12-17 DOI: 10.1109/CEIDP.2015.7352145
H. Uehara, Z. Li, Y. Cao, Q. Chen, G. Montanari
{"title":"The effect of thermal gradient on space charge pattern in XLPE","authors":"H. Uehara, Z. Li, Y. Cao, Q. Chen, G. Montanari","doi":"10.1109/CEIDP.2015.7352145","DOIUrl":"https://doi.org/10.1109/CEIDP.2015.7352145","url":null,"abstract":"This paper describes the comparison between the simulated results of thermal gradient using COMSOL and actual observed results of thermal gradient in modified thin film pulsed electroacoustic system, together with the effect of thermal gradient on space charge at room temperature and 50 °C. The results show the presence of thermal gradient facilitates the charge injection and electric field distortion, resulting in accelerated aging of insulation under HVDC.","PeriodicalId":432404,"journal":{"name":"2015 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128866201","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: 6
Solar-irradiated leakage of UV camera for daytime corona inspection 日间日冕检测用紫外相机的太阳辐照泄漏
2015 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2015-12-17 DOI: 10.1109/CEIDP.2015.7352117
Jianwen Ding, Xiang Li, Xi Zhu, Xun Cao, Feng Yan, X. Bian
{"title":"Solar-irradiated leakage of UV camera for daytime corona inspection","authors":"Jianwen Ding, Xiang Li, Xi Zhu, Xun Cao, Feng Yan, X. Bian","doi":"10.1109/CEIDP.2015.7352117","DOIUrl":"https://doi.org/10.1109/CEIDP.2015.7352117","url":null,"abstract":"Among various parameters impacting on the performance of UV camera for daytime corona inspection, the solar-irradiated leakage (SIL) is the most influential one according to the BLUP theory. The minimum detectable corona is limited by √(SIL). In this paper, a series of UV filters are used to represent different SIL levels on a clear day. After a UV filter with a transmittance of 10-13 above 300 nm being applied, the SIL can be effectively suppressed rapidly below 25 photoelectrons per second. Using the 10-13 UV filter, a 1μW weak corona defect can be identified over 100m on a clear day with the help of a proper spatial and temporal correlation algorithm.","PeriodicalId":432404,"journal":{"name":"2015 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"85 29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130876826","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
Fabrication and anti-icing property of superhydrophobic coatings on insulator 绝缘子超疏水涂层的制备及其防冰性能
2015 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2015-12-17 DOI: 10.1109/CEIDP.2015.7352052
Zhiping Zuo, R. Liao, Chao Guo, Xuetong Zhao
{"title":"Fabrication and anti-icing property of superhydrophobic coatings on insulator","authors":"Zhiping Zuo, R. Liao, Chao Guo, Xuetong Zhao","doi":"10.1109/CEIDP.2015.7352052","DOIUrl":"https://doi.org/10.1109/CEIDP.2015.7352052","url":null,"abstract":"Surface icing of transmission lines may inflict serious consequences such as tower collapse and power failure. Superhydrophobic (SHP) surface is believed to be potential candidate to realize anti-icing. Here we reported a method to fabricate SHP surface on insulator to enhance its anti-icing performance. The as-prepared SHP surface exhibits a contact angle (CA) of 161° and sliding angle (SA) of 1°. The anti-icing behavior of the as-prepared SHP surface was investigated by an artificial climate chamber. Results showed the as-prepared SHP surface can effectively mitigate the freezing process and reduce ice accumulation. Only isolated ice points formed on the SHP surface. Due to the micro/nano binary structures of the SHP surface, a large amount of air was trapped in the textures, which contributed to the superhydrophobicity. This method is easy to handle and doesn't need any special facility which may have potential future applications in transmission lines against ice accumulation.","PeriodicalId":432404,"journal":{"name":"2015 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"7 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114032089","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
Application of dynamic two-arc model to flashover of HVDC insulators subjected to cold climate regions 动态双弧模型在寒冷气候地区高压直流绝缘子闪络中的应用
2015 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2015-12-17 DOI: 10.1109/CEIDP.2015.7352001
S. Taheri, M. Farzaneh, I. Fofana
{"title":"Application of dynamic two-arc model to flashover of HVDC insulators subjected to cold climate regions","authors":"S. Taheri, M. Farzaneh, I. Fofana","doi":"10.1109/CEIDP.2015.7352001","DOIUrl":"https://doi.org/10.1109/CEIDP.2015.7352001","url":null,"abstract":"The main objective of this contribution is to present a dynamic two-arc model to study the behavior of DC arcs on ice-covered post insulators. This model provides an appropriate tool to determine minimum flashover voltage (VMF) which is a determining factor in the selection of insulators under icing conditions. The proposed model takes into account the environmental pollution level, insulator geometry and, most importantly, applied voltage polarities. The model is validated against laboratory data consisting of flashover tests on a typical 735-kV ice-covered post insulator under DC voltage. The experimental results have good agreement with those computed by the proposed model. This model could be regarded as an important basis for the development of multi-arc models, not to mention being a powerful tool for the design and selection of EHV insulators subjected to ice accretion.","PeriodicalId":432404,"journal":{"name":"2015 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114842305","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
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