2020 IEEE Electrical Insulation Conference (EIC)最新文献_第7页

LT-Spice Model for Induction Generators with Self-Excitation 自激感应发电机的LT-Spice模型

2020 IEEE Electrical Insulation Conference (EIC) Pub Date : 2020-06-01 DOI: 10.1109/EIC47619.2020.9158658

M. Giesselmann, S. DaneshvarDehnavi

引用次数: 1

Characterization of Corona and Internal Partial Discharge under Increasing Electrical Stress using Time Domain Analysis 用时域分析表征电晕和内部局部放电在增加电应力下的特性

2020 IEEE Electrical Insulation Conference (EIC) Pub Date : 2020-06-01 DOI: 10.1109/eic47619.2020.9158701

M. Shafiq, I. Kiitam, P. Taklaja, Amjad Hussain, L. Kütt, K. Kauhaniemi

{"title":"Characterization of Corona and Internal Partial Discharge under Increasing Electrical Stress using Time Domain Analysis","authors":"M. Shafiq, I. Kiitam, P. Taklaja, Amjad Hussain, L. Kütt, K. Kauhaniemi","doi":"10.1109/eic47619.2020.9158701","DOIUrl":"https://doi.org/10.1109/eic47619.2020.9158701","url":null,"abstract":"Aging and abnormal stresses accelerate insulation degradation and reduce the lifetime of power equipment. Partial discharge (PD) measurement is an effective tool to study the condition of the insulation. Reliability of PD diagnosis depends on the accurate interpretation of the measured PD signals. PD itself is a complex phenomenon and the presence of different types of discharge sources makes interpretation of the PD data quite challenging. This paper investigates internal and corona PDs in order to distinguish them when both are active simultaneously. The presented work identifies the PD sources based on time domain analysis that provides a simplified solution as compared to identification techniques based on different statistical features leading to complex data processing. While superimposed phase-resolved partial discharge (PRPD) patterns provided incomplete information, time domain PD characteristics e.g. pulse repetition rate and pulse amplitude combined with PRPD mapping are analyzed to differentiate PD activity. Furthermore, the electrical stress (voltage level) is increased gradually in the experiments made and PD behavior is studied. The presented technique contributes to enhancing the accuracy of PD diagnosis that is necessary for appropriate decision making concerning the repair of affected components.","PeriodicalId":286019,"journal":{"name":"2020 IEEE Electrical Insulation Conference (EIC)","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131568655","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

Study on Characteristics of Discharge Channels Induced by Pulsed Discharge in Water and Its Application in Solar Panel Recycling 水中脉冲放电诱导放电通道特性及其在太阳能电池板回收中的应用研究

2020 IEEE Electrical Insulation Conference (EIC) Pub Date : 2020-06-01 DOI: 10.1109/eic47619.2020.9158703

Yue Fan, Ling Jiang, Jun Kang, Shengfu Wang, Chenglei Zhang, Meng-Yao Zhang, Baipeng Song, Guanjun Zhang

{"title":"Study on Characteristics of Discharge Channels Induced by Pulsed Discharge in Water and Its Application in Solar Panel Recycling","authors":"Yue Fan, Ling Jiang, Jun Kang, Shengfu Wang, Chenglei Zhang, Meng-Yao Zhang, Baipeng Song, Guanjun Zhang","doi":"10.1109/eic47619.2020.9158703","DOIUrl":"https://doi.org/10.1109/eic47619.2020.9158703","url":null,"abstract":"Pulse discharge in water can not only produce ozone, hydrogen peroxide and other active substances with high oxidation potential, but also ultraviolet light and shockwaves, which has been widely used in biomedical, environmental, mining and other fields in recent years. The formation of active substances in water is closely related to the formation characteristics of discharge channels in the process of pulse discharge, as a result of which it is of great importance to study the characteristics of discharge channels in water for further development of high voltage pulse discharge technology. In this study, pulsed voltage produced by Marx pulse generator with frequency set to be 1Hz is applied for analyze characteristics of discharge channels induced by pulsed discharge in water. With the increase of voltage amplitude, transition of discharge mode from streamer discharge to spark breakdown is realized. Based on the fundamental results of discharge channels, preliminary experiments of its application in solar panel recycling are performed, which show that high voltage fragmentation is an effective method to deal with solar panels and the optimal parameter is 193J/g imported in this research. Circular holes and dendritic discharge channels are formed on the surface of the back sheets, and the ablation on the surface of the back plates shows a rugged pore structure on the micro level. Main metals in the broken products are concentrated in specific size fractions, which is convenient for resource recovery.","PeriodicalId":286019,"journal":{"name":"2020 IEEE Electrical Insulation Conference (EIC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130626318","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

Study on Microstructure of Composite Insulator Rod 复合绝缘子棒的微观结构研究

2020 IEEE Electrical Insulation Conference (EIC) Pub Date : 2020-06-01 DOI: 10.1109/eic47619.2020.9158711

Tingting Wang, Fuzeng Zhang, Xiangjun Zeng, Y. Liao, Sida Zhang, Huan Huang, Xiaohong Ma, Qianyong Lv, X. Mao, Rui Xie

引用次数: 1

Interfacial charge dynamics in multi-dielectrics under various electric fields and thermal gradient 多介质在不同电场和热梯度下的界面电荷动力学

2020 IEEE Electrical Insulation Conference (EIC) Pub Date : 2020-06-01 DOI: 10.1109/eic47619.2020.9158579

Mohamadreza Arab Baferani, Chuanyang Li, Tohid Shahsavarian, M. Tefferi, Ivan Jovanović, Yang Cao

{"title":"Interfacial charge dynamics in multi-dielectrics under various electric fields and thermal gradient","authors":"Mohamadreza Arab Baferani, Chuanyang Li, Tohid Shahsavarian, M. Tefferi, Ivan Jovanović, Yang Cao","doi":"10.1109/eic47619.2020.9158579","DOIUrl":"https://doi.org/10.1109/eic47619.2020.9158579","url":null,"abstract":"For the reliable utilization of HVDC interconnections, the joint/termination, as the keystone elements have to be engineered with superior performance and reliability. The use of insulating material in cable interconnections different from that of the cable insulation results in dielectric/dielectric interface in the cable joint. Under DC stress, the field distribution in the multi-dielectrics depends on the differences in material constitutive parameters, conductivity and permittivity, and the field profile is complex and difficult to predict under thermal gradient. In this paper, the field distribution in two dielectric bilayer of cross-linked polyethylene (XLPE)/silicon rubber (SiR) and ethylene propylene rubber (EPR)/SiR, as representative of cable joints, have been studied to provide guidance for the safe design and optimization of HVDC joints. The results show that compared with XLPE/SiR, the EPR/SiR sample has better performance with less space charge injection and less electric field distortion. This is because of closer constitutive material parameters and lower space charge accumulation of EPR under DC electric field. The content of this paper can be helpful to explain the interface charging property of multi-dielectrics and further provides significant importance to the selection of materials in developing of HVDC cables.","PeriodicalId":286019,"journal":{"name":"2020 IEEE Electrical Insulation Conference (EIC)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126925091","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

Detection of arc extinguishing performance of circuit breaker based on radiated electromagnetic waves 基于辐射电磁波的断路器灭弧性能检测

2020 IEEE Electrical Insulation Conference (EIC) Pub Date : 2020-06-01 DOI: 10.1109/EIC47619.2020.9158712

Zhiwan Cheng, Guochao Qian, M. Hongming, Wei Wang, Dingkai Xu, Zhongzheng Ning

引用次数: 1

Failure Prediction of Metal Oxide Arresters using Artificial Neural Networks 基于人工神经网络的金属氧化物避雷器失效预测

2020 IEEE Electrical Insulation Conference (EIC) Pub Date : 2020-06-01 DOI: 10.1109/eic47619.2020.9158694

L. Muremi, P. Bokoro

引用次数: 0

New Method for Thermal Aging Testing of Enameled Conductors Used in Liquid-Immersed Transformers 液浸变压器用漆包线热老化试验新方法

2020 IEEE Electrical Insulation Conference (EIC) Pub Date : 2020-06-01 DOI: 10.1109/eic47619.2020.9158682

T. Prevost, A. Levin, Bradley A. Greaves, K. Biggie

{"title":"New Method for Thermal Aging Testing of Enameled Conductors Used in Liquid-Immersed Transformers","authors":"T. Prevost, A. Levin, Bradley A. Greaves, K. Biggie","doi":"10.1109/eic47619.2020.9158682","DOIUrl":"https://doi.org/10.1109/eic47619.2020.9158682","url":null,"abstract":"Enameled wire is widely used as a conductor in liquid-immersed transformers and its performance is critical for the reliable operation of transformers. One of the major application characteristics of the enamel coating is its thermal endurance as it relates to the long term temperatures of the transformer windings. There are standards developed for the thermal evaluation of systems that combine transformer liquid and solid insulation materials, simulating the transformer insulating systems. The so-called sealed tube accelerated aging test is the method that is used most often. However, even though conductor materials are used as a part of the system in those evaluations, a review of available information confirmed that there is no standardized aging test method for the enamel coating itself (in systems with liquids) available. This paper proposes and describes a new method for accelerated aging testing and thermal endurance qualification of enameled wires for liquid-immersed transformers. The test set-up, test procedure and results evaluation methods are described in detail. The feasibility, applicability and accuracy of the proposed test is verified by aging experiments and the results are presented.","PeriodicalId":286019,"journal":{"name":"2020 IEEE Electrical Insulation Conference (EIC)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125506903","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

High Temperature Partial Discharge Inception Voltage under Repetitive Impulse Voltage Applied to Motorette Samples 重复脉冲电压作用于马达样品的高温局部放电起始电压

2020 IEEE Electrical Insulation Conference (EIC) Pub Date : 2020-06-01 DOI: 10.1109/eic47619.2020.9158767

Y. Nishigaki, T. Matsuzoe, S. Takenouchi, M. Kozako, M. Hikita, Takahiro Nakamura, Jintong Sun, A. Izumi, T. Sakurai, K. Karasawa, S. Hiroshima

引用次数: 0

Status of IEEE P2465 - Draft Recommended Practice for Pulse-type Partial Discharge Measurements on Individual Stator Bars and Coils IEEE P2465现状-单个定子棒和线圈脉冲型局部放电测量推荐实施规程草案

2020 IEEE Electrical Insulation Conference (EIC) Pub Date : 2020-06-01 DOI: 10.1109/EIC47619.2020.9158673

W. McDermid, M. Partyka, T. Black

引用次数: 0