2020 IEEE 3rd International Conference on Dielectrics (ICD)最新文献_第6页

Partial Discharge Erosion of Polypropylene/Elastomer Blends Characterized with Multi-Sensors under AC Voltage 交流电压下多传感器表征聚丙烯/弹性体共混物局部放电侵蚀

2020 IEEE 3rd International Conference on Dielectrics (ICD) Pub Date : 2020-07-05 DOI: 10.1109/ICD46958.2020.9341807

Jinjing Peng, Yu Gao, Jing Li, Xuri Xu, Zheng Song, B. Du

{"title":"Partial Discharge Erosion of Polypropylene/Elastomer Blends Characterized with Multi-Sensors under AC Voltage","authors":"Jinjing Peng, Yu Gao, Jing Li, Xuri Xu, Zheng Song, B. Du","doi":"10.1109/ICD46958.2020.9341807","DOIUrl":"https://doi.org/10.1109/ICD46958.2020.9341807","url":null,"abstract":"Polypropylene (PP) has been considered as a promising insulation material for power cable in both AC and DC systems because of its excellent insulation performance and recyclability. The exposure to partial discharge gives rise to the deterioration of the material that threatens the safe operation of cable. Therefore, it is of great significance to understand the mechanism of partial discharge of PP and its blends subjected to AC voltage. In this work, PP/elastomer blends with thickness of $150 mu mathrm{m}$ were prepared as samples. A needle-plane electrode system was employed to introduce partial discharge by applying an AC voltage with 5 kVrms for 2 hours. The erosion behavior was characterized through multi-sensors system, including high frequency current transformer (HFCT), optical recorder and gas sensor. To better understand the erosion mechanism, isothermal surface potential decay (ISPD) method was used to analyze trap characteristics. The results showed that the trap center became shallower with the increase of elastomer content for both ethylene-octene copolymer elastomer (EOC) and polypropylene based elastomer (PBE). Compared with pure PP, the addition of elastomer improved the resistance of partial discharge and PP with 20 wt% loading percent of EOC presented better resistance to partial discharge compared with PP with 20 wt% loading percent of PBE.","PeriodicalId":6795,"journal":{"name":"2020 IEEE 3rd International Conference on Dielectrics (ICD)","volume":"95 1","pages":"890-893"},"PeriodicalIF":0.0,"publicationDate":"2020-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85723348","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

Effects of Magnetic Field on Surface Flashover of Polyimide Film for Superconducting Magnet Insulation 磁场对超导磁体绝缘聚酰亚胺膜表面闪络的影响

2020 IEEE 3rd International Conference on Dielectrics (ICD) Pub Date : 2020-07-05 DOI: 10.1109/ICD46958.2020.9341999

B. Du, Y. Li, M.Y. Wang, Z.X. Liu, X.T. Han, Y. Zhang, Jin Li, Z.L. Li, H.L. Sun

{"title":"Effects of Magnetic Field on Surface Flashover of Polyimide Film for Superconducting Magnet Insulation","authors":"B. Du, Y. Li, M.Y. Wang, Z.X. Liu, X.T. Han, Y. Zhang, Jin Li, Z.L. Li, H.L. Sun","doi":"10.1109/ICD46958.2020.9341999","DOIUrl":"https://doi.org/10.1109/ICD46958.2020.9341999","url":null,"abstract":"Polyimide (PI) film is widely used as insulation material in superconducting magnet systems. While operating, the PI film is subjected to the interaction of electric and magnetic fields. The existence of magnetic field will affect charge behaviors leading to the changes in flashover voltage. In this paper, a steady magnetic field up to 1.2 T was applied to the PI films. The flashover voltages were investigated under DC condition and AC condition. Different angles between magnetic and electric fields were set to explore the influence of magnetic field direction on the flashover voltage of PI film. Experimental results show that the $Etimes B$ drifting into the surface will block the secondary electron emission, resulting in an increase in the flashover voltage. When the $Etimes B$ drifts out of the surface the result is just the opposite. The promoting effect of magnetic field on the changes of flashover voltage is weakened under the AC condition, while the suppressive effect is strengthened. The failure mechanism of PI film under strong magnetic field will provide a theoretical basis for improving the insulation reliability of superconducting magnets.","PeriodicalId":6795,"journal":{"name":"2020 IEEE 3rd International Conference on Dielectrics (ICD)","volume":"88 1","pages":"97-100"},"PeriodicalIF":0.0,"publicationDate":"2020-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79887668","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

Life modeling analysis of Silane crosslinked polyethylene cables for nuclear applications 核用硅烷交联聚乙烯电缆寿命建模分析

2020 IEEE 3rd International Conference on Dielectrics (ICD) Pub Date : 2020-07-05 DOI: 10.1109/ICD46958.2020.9341894

S. V. Suraci, D. Fabiani

引用次数: 2

PD-Activity in Generator Stator Bar insulation versus Voltage Frequency and Temperature 发电机定子棒绝缘的pd活性随电压、频率和温度的变化

2020 IEEE 3rd International Conference on Dielectrics (ICD) Pub Date : 2020-07-05 DOI: 10.1109/ICD46958.2020.9341874

T. Aakre, E. Ildstad

{"title":"PD-Activity in Generator Stator Bar insulation versus Voltage Frequency and Temperature","authors":"T. Aakre, E. Ildstad","doi":"10.1109/ICD46958.2020.9341874","DOIUrl":"https://doi.org/10.1109/ICD46958.2020.9341874","url":null,"abstract":"Condition assessment of generators is today performed at various voltage frequencies and test temperatures. The main purpose of this paper is to compare measured PD results from sections of generator bars with that of similar tests performed on laboratory made test objects with void enclosures of known geometry. The test objects were subjected to ac voltage in the frequency range from 0.1 to 300 Hz, increasing in steps up to a maximum of 10 kV. The measured values of partial discharge inception voltages (PDIV), apparent charge magnitude and number of PDs were compared to estimated values in the temperature range of 20° to $155^{circ}mathrm{C}$ using an impedance abcmodel, including both conduction and dielectric response. It was found that the capacitive abc-model sufficiently accurately describes the observed PDIV values at temperatures below $100^{circ}mathrm{C}$ and test frequencies below 50 Hz. At temperatures higher temperatures the measured PDIV values were found to decrease with increasing temperature, particularly so at the lowest test frequencies. This is in agreement with the assumption of increased conductivity and higher rate of polarization at increased temperatures. The high number of low magnitude PDs, strongly indicating that several discharges are needed for a complete discharge of a void surface.","PeriodicalId":6795,"journal":{"name":"2020 IEEE 3rd International Conference on Dielectrics (ICD)","volume":"1 1","pages":"870-873"},"PeriodicalIF":0.0,"publicationDate":"2020-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83561522","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

Preparation and Electromechanical Performance Analysis of Self-healing Electrostrictive Polymer 自愈电致伸缩聚合物的制备及机电性能分析

2020 IEEE 3rd International Conference on Dielectrics (ICD) Pub Date : 2020-07-05 DOI: 10.1109/ICD46958.2020.9341837

Z. Zhang, Youyuan Wang, Xiaosong Zhu, Yudong Li, Hongrui Gu

引用次数: 0

Epoxy composite with hBN fillers compatible with industrial application in electrical equipment 环氧复合材料与hBN填料兼容的工业应用在电气设备

2020 IEEE 3rd International Conference on Dielectrics (ICD) Pub Date : 2020-07-05 DOI: 10.1109/ICD46958.2020.9341949

S. Haller, Damien Bachellerie, S. Pruvost, Loriane Desmars, S. Iglesias, J. Galy, G. Robert, Christian Lao, A. Girodet, M. Henriksen

引用次数: 0

Research Progress on Modification of Epoxy Resin Materials for High-Voltage Electrical Equipment 高压电器用环氧树脂材料改性研究进展

2020 IEEE 3rd International Conference on Dielectrics (ICD) Pub Date : 2020-07-05 DOI: 10.1109/ICD46958.2020.9341831

Y. Wang, Ang Li, J. Li, W. Zhang, Q. Du, M. M. Zhang, Z. H. Wang, H. C. Liang, B. Du

引用次数: 1

The Role of Filler Interface in Suppressing the Erosion of Silicone Rubber Under DC Voltage 填料界面在抑制直流电压下硅橡胶腐蚀中的作用

2020 IEEE 3rd International Conference on Dielectrics (ICD) Pub Date : 2020-07-05 DOI: 10.1109/ICD46958.2020.9341937

Alhaytham Alqudsi, R. Ghunem, É. David, Y. Hadjadj

{"title":"The Role of Filler Interface in Suppressing the Erosion of Silicone Rubber Under DC Voltage","authors":"Alhaytham Alqudsi, R. Ghunem, É. David, Y. Hadjadj","doi":"10.1109/ICD46958.2020.9341937","DOIUrl":"https://doi.org/10.1109/ICD46958.2020.9341937","url":null,"abstract":"The presented paper aims to highlight the role of fillerpolymer interface on the DC erosion resistance of silicone rubber (SiR) outdoor insulators. SiR composites filled with nano-sized boron nitride and fumed silica have been prepared in this study. Electrical and thermal experimental tools of the inclined plane tracking-erosion test, simultaneous thermogravimetric-differential thermal analyses, and thermal conductivity measurements are used to analyze the prepared nanocomposites. The analysis primarily investigates whether the composite’s enhancement of thermal conductivity or filler interface would be more influential on erosion suppression. Literature reports that the boron nitride filler improves SiR’s thermal conductivity, whereas fumed silica provides an exceptional interaction with SiR at the filler interface. SiR was filled with boron nitride at 5wt% (percent by weight) and 10wt%, while fumed silica was loaded with 5wt% and used as a reference composite in the study. The obtained results clearly indicate a superior erosion resistance of the silica filled SiR over the boron nitride filled one. An observation which seemingly could give more significant role of the filler-polymer interface on the erosion resistance of SiR used for high voltage DC outdoor insulators.","PeriodicalId":6795,"journal":{"name":"2020 IEEE 3rd International Conference on Dielectrics (ICD)","volume":"10 1","pages":"154-157"},"PeriodicalIF":0.0,"publicationDate":"2020-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85299538","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

Silica Functionalization: How Does it Affect Space Charge Accumulation in Nanodielectrics Under DC? 二氧化硅功能化:如何影响直流条件下纳米介电体的空间电荷积累?

2020 IEEE 3rd International Conference on Dielectrics (ICD) Pub Date : 2020-07-05 DOI: 10.1109/ICD46958.2020.9341818

Amirhossein Mahtabani, I. Rytöluoto, R. Anyszka, Eetta Saarimäki, Xiaozhen He, K. Lahti, M. Paajanen, W. Dierkes, A. Blume

{"title":"Silica Functionalization: How Does it Affect Space Charge Accumulation in Nanodielectrics Under DC?","authors":"Amirhossein Mahtabani, I. Rytöluoto, R. Anyszka, Eetta Saarimäki, Xiaozhen He, K. Lahti, M. Paajanen, W. Dierkes, A. Blume","doi":"10.1109/ICD46958.2020.9341818","DOIUrl":"https://doi.org/10.1109/ICD46958.2020.9341818","url":null,"abstract":"Functionalization of silica nanoparticles with polar aminosilane and its effect on space charge accumulation under high voltage direct current (DC) was studied in polypropylene (PP)/ Ethylene-Octene Copolymer (EOC) /silica nanodielectrics. The modification reaction conditions were varied in order to alter the deposited layer grafting density and morphology, and hence, the filler-polymer interfacial properties. The effect of this alteration was then studied on the space charge accumulation under a high DC field as one of the most important properties to tune for HVDC cable insulation systems. The chemical modification of the silica surface was first confirmed via Thermogravimetric Analysis (TGA) and Fourier Transform IR Spectroscopy (FTIR). Differential Scanning Calorimetry (DSC) was performed on the nanocomposites to study the effect of the nano-engineered interfacial areas on nucleation and crystal formation. The effect of the amine functional groups on the charge carrier trapping and transport in this insulation system was studied via Thermally Stimulated Depolarization Current (TSDC) method.It was argued that the amine functionality on the silica surface can induce deep trap states at the filler-polymer interfaces, and hinder further injection of the space charge. Under certain modification conditions, the aminosilane can form “island-like” structures on the silica surface. These islands can both facilitate nucleation, inducing transcrystallization at the filler-polymer interface, and further contribute to the induction of deep traps which result in reduction of space charge accumulation in the nanodielectric.","PeriodicalId":6795,"journal":{"name":"2020 IEEE 3rd International Conference on Dielectrics (ICD)","volume":"11 1","pages":"281-284"},"PeriodicalIF":0.0,"publicationDate":"2020-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91148357","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

Ageing Behaviours of Superhydrophobic and Icephobic Coatings on Overhead Line Systems 架空线路系统超疏水和疏冰涂层的老化行为

2020 IEEE 3rd International Conference on Dielectrics (ICD) Pub Date : 2020-07-05 DOI: 10.1109/ICD46958.2020.9341809

Chengxing Lian, Xu Zhang, C. Emersic, I. Cotton

引用次数: 2