Pub Date : 2016-07-03DOI: 10.1109/ICD.2016.7547738
Hua Li, P. Lewin, J. Fothergill
Safety capacitors (usually denoted as X1, X2 or Y) are metallized film capacitors (MFC). Two kinds of capacitance loss mechanism typically occur in this metallized film structure: (1) caused by self-healing resulting in a very small electrode area loss; (2) caused by electrode oxidation by electrochemical corrosion under ac stress in a humid environment. This study focuses on the aging mechanism of X2 film capacitors working in high temperature and high humidity environments. Two types of X2 film capacitors have been stressed under an applied voltage of 270Vac at 85 ¼C, 78.68%RH. Capacitance and equivalent series resistance (ESR) were monitored during the experiment as parametric parameters that reflect the aging process. The aging mechanism including moisture ingress time were calculated and comprehensively analyzed with the capacitance change characteristics. It was found that capacitors with lower aluminum metallization has a better capacitance stability, the mean corrosion rate of Type2 (9.7% aluminum metallization) is more than 3 times of the Type1(6.9% aluminum metallization).The ingress time calculated by capacitance change and normalized ESR show reasonable agreement.
{"title":"Aging mechanisms of X2 metallized film capacitors in a high temperature and humidity environment","authors":"Hua Li, P. Lewin, J. Fothergill","doi":"10.1109/ICD.2016.7547738","DOIUrl":"https://doi.org/10.1109/ICD.2016.7547738","url":null,"abstract":"Safety capacitors (usually denoted as X1, X2 or Y) are metallized film capacitors (MFC). Two kinds of capacitance loss mechanism typically occur in this metallized film structure: (1) caused by self-healing resulting in a very small electrode area loss; (2) caused by electrode oxidation by electrochemical corrosion under ac stress in a humid environment. This study focuses on the aging mechanism of X2 film capacitors working in high temperature and high humidity environments. Two types of X2 film capacitors have been stressed under an applied voltage of 270Vac at 85 ¼C, 78.68%RH. Capacitance and equivalent series resistance (ESR) were monitored during the experiment as parametric parameters that reflect the aging process. The aging mechanism including moisture ingress time were calculated and comprehensively analyzed with the capacitance change characteristics. It was found that capacitors with lower aluminum metallization has a better capacitance stability, the mean corrosion rate of Type2 (9.7% aluminum metallization) is more than 3 times of the Type1(6.9% aluminum metallization).The ingress time calculated by capacitance change and normalized ESR show reasonable agreement.","PeriodicalId":306397,"journal":{"name":"2016 IEEE International Conference on Dielectrics (ICD)","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127651578","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}
Pub Date : 2016-07-03DOI: 10.1109/ICD.2016.7547595
M. Badard, L. Flandin, A. Combessis, A. Allais
This paper describes the effect of electric field on the structuration of carbon nanotubes in silicone oil. The particles have been dispersed in the liquid by ultrasounds and diluted in order to vary the filler content. Electrical measurements were performed under different electric fields and over time on each filler content, in order to probe the particles structuration. From a critical value, the electric field was found to both increase the conductivity of the composite and reduce percolation threshold. This effect is further enhanced with time. Spectacular percolation thresholds, as low as 22 ppm have been evidenced. This result was attributed to a strengthening effect between filler contacts. More surprisingly, the conductivity remained high after the electric field was stopped, showing the irreversible nature of this effect. In addition, an analytical model has been developed to describe the conductivity of the composite as a function of three parameters: nanotubes content, time and electric field.
{"title":"A 22 ppm ultralow percolation threshold with MWCNT","authors":"M. Badard, L. Flandin, A. Combessis, A. Allais","doi":"10.1109/ICD.2016.7547595","DOIUrl":"https://doi.org/10.1109/ICD.2016.7547595","url":null,"abstract":"This paper describes the effect of electric field on the structuration of carbon nanotubes in silicone oil. The particles have been dispersed in the liquid by ultrasounds and diluted in order to vary the filler content. Electrical measurements were performed under different electric fields and over time on each filler content, in order to probe the particles structuration. From a critical value, the electric field was found to both increase the conductivity of the composite and reduce percolation threshold. This effect is further enhanced with time. Spectacular percolation thresholds, as low as 22 ppm have been evidenced. This result was attributed to a strengthening effect between filler contacts. More surprisingly, the conductivity remained high after the electric field was stopped, showing the irreversible nature of this effect. In addition, an analytical model has been developed to describe the conductivity of the composite as a function of three parameters: nanotubes content, time and electric field.","PeriodicalId":306397,"journal":{"name":"2016 IEEE International Conference on Dielectrics (ICD)","volume":"378 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127386690","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}
Pub Date : 2016-07-03DOI: 10.1109/ICD.2016.7547707
M. Nazir, B. T. Phung
Silicone rubber (SR) insulating surfaces are often subjected to corona partial discharges (PD) during outdoor operation which can change the surface chemistry significantly and result in considerable surface deterioration, hydrophobicity loss, and enhancement of PD activity. In this work, the effect of micro and nano-fillers addition on surface degradation of SR under AC corona discharge is examined by analyzing the PD characteristics, hydrophobicity and surface morphology. Nano precipitated silica and ground silica with particle size of ~20 nm and ~5 μm are adopted and incorporated in RTV silicone rubber by two different mixing techniques. Mechanical stirring followed by ultrasonic water bath are applied to achieve uniform dispersion of fillers in RTV SR matrix. The four different types of the composite, i.e. pristine SR, 30-wt% micro-silica/SR, 27.5-wt% micro with 2.5-wt% nano-silica/SR and 5-wt% nanosilica/SR composites are tested under AC corona discharge. It is found that, at the end of ageing, the nano-silica composite showed the best suppression against PD activity and higher resistance against surface damage as compared to other test samples. It is also found that resistance to hydrophobicity loss is offered by composites during the initial 48 h of corona treatment but it is completely lost at the end of 96 h of ageing.
{"title":"AC corona resistance performance of silicone rubber composites with micro/nano silica fillers","authors":"M. Nazir, B. T. Phung","doi":"10.1109/ICD.2016.7547707","DOIUrl":"https://doi.org/10.1109/ICD.2016.7547707","url":null,"abstract":"Silicone rubber (SR) insulating surfaces are often subjected to corona partial discharges (PD) during outdoor operation which can change the surface chemistry significantly and result in considerable surface deterioration, hydrophobicity loss, and enhancement of PD activity. In this work, the effect of micro and nano-fillers addition on surface degradation of SR under AC corona discharge is examined by analyzing the PD characteristics, hydrophobicity and surface morphology. Nano precipitated silica and ground silica with particle size of ~20 nm and ~5 μm are adopted and incorporated in RTV silicone rubber by two different mixing techniques. Mechanical stirring followed by ultrasonic water bath are applied to achieve uniform dispersion of fillers in RTV SR matrix. The four different types of the composite, i.e. pristine SR, 30-wt% micro-silica/SR, 27.5-wt% micro with 2.5-wt% nano-silica/SR and 5-wt% nanosilica/SR composites are tested under AC corona discharge. It is found that, at the end of ageing, the nano-silica composite showed the best suppression against PD activity and higher resistance against surface damage as compared to other test samples. It is also found that resistance to hydrophobicity loss is offered by composites during the initial 48 h of corona treatment but it is completely lost at the end of 96 h of ageing.","PeriodicalId":306397,"journal":{"name":"2016 IEEE International Conference on Dielectrics (ICD)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129158521","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}
Pub Date : 2016-07-03DOI: 10.1109/ICD.2016.7547674
D. Odaka, M. Komatsu, Y. Ohki
Various properties of polyethylene naphthalate (PEN) are affected by its crystallinity. In this paper, the possibility of using terahertz (THz) spectroscopy as a tool to examine the crystallinity of PEN is studied. When THz absorption is measured while the sample temperature is being raised, an absorption peak suddenly appears at around 2.10 THz at 180 °C. By analyzing the THz spectra together with XRD patterns, we found that the 2.10-THz absorption has a close relation with the crystal form α of PEN and its intensity increases with the progress of crystallization. Therefore, THz absorption spectroscopy can be used for monitoring the crystallization of PEN.
{"title":"Observation of crystal growth in polyethylene naphthalate by terahertz spectroscopy","authors":"D. Odaka, M. Komatsu, Y. Ohki","doi":"10.1109/ICD.2016.7547674","DOIUrl":"https://doi.org/10.1109/ICD.2016.7547674","url":null,"abstract":"Various properties of polyethylene naphthalate (PEN) are affected by its crystallinity. In this paper, the possibility of using terahertz (THz) spectroscopy as a tool to examine the crystallinity of PEN is studied. When THz absorption is measured while the sample temperature is being raised, an absorption peak suddenly appears at around 2.10 THz at 180 °C. By analyzing the THz spectra together with XRD patterns, we found that the 2.10-THz absorption has a close relation with the crystal form α of PEN and its intensity increases with the progress of crystallization. Therefore, THz absorption spectroscopy can be used for monitoring the crystallization of PEN.","PeriodicalId":306397,"journal":{"name":"2016 IEEE International Conference on Dielectrics (ICD)","volume":"197 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132355697","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}
Pub Date : 2016-07-03DOI: 10.1109/ICD.2016.7547763
Yanghcun Cheng, W. Chang, J. Bi, Xiaohua Pan
The Frequency Response Analysis (FRA) method is used widely in the windings deformation diagnostics of power transformers. But until recently, the FRA method can only be used off line, because it need injecting signal into the windings. For operating transformers, it is almost impossible to inject directly the signal into the windings which are under high potential. Therefore, before applying FRA on operating transformer, the signal injection problem should be solved at first. A new signal injection method is put forward to conduct online FRA. The sweep frequency signal is injected into the neutral pinot grounding line of the windings, by the magnetic coupling of a Rogowski coil. In our laboratory, on an offline 220 kV transformer, the sweep frequency signal was injected into the bushing tap or the neutral point, and the response voltage signal and current signal on the tap or the neutral point were measured. The transfer function curves were calculated and contrasted. The results of the experiments show that injecting signal into the neutral point grounding line has the same effect as injecting voltage signal into the bushing tap. So, injecting signal from the neutral grounding line through a Rogowski coil is feasible, and the online FRA method can be used without breaking the grounding line of the bushing tap or the neutral point.
{"title":"Signal injection by magnetic coupling for the online FRA of transformer winding deformation diagnosis","authors":"Yanghcun Cheng, W. Chang, J. Bi, Xiaohua Pan","doi":"10.1109/ICD.2016.7547763","DOIUrl":"https://doi.org/10.1109/ICD.2016.7547763","url":null,"abstract":"The Frequency Response Analysis (FRA) method is used widely in the windings deformation diagnostics of power transformers. But until recently, the FRA method can only be used off line, because it need injecting signal into the windings. For operating transformers, it is almost impossible to inject directly the signal into the windings which are under high potential. Therefore, before applying FRA on operating transformer, the signal injection problem should be solved at first. A new signal injection method is put forward to conduct online FRA. The sweep frequency signal is injected into the neutral pinot grounding line of the windings, by the magnetic coupling of a Rogowski coil. In our laboratory, on an offline 220 kV transformer, the sweep frequency signal was injected into the bushing tap or the neutral point, and the response voltage signal and current signal on the tap or the neutral point were measured. The transfer function curves were calculated and contrasted. The results of the experiments show that injecting signal into the neutral point grounding line has the same effect as injecting voltage signal into the bushing tap. So, injecting signal from the neutral grounding line through a Rogowski coil is feasible, and the online FRA method can be used without breaking the grounding line of the bushing tap or the neutral point.","PeriodicalId":306397,"journal":{"name":"2016 IEEE International Conference on Dielectrics (ICD)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122205126","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}
Pub Date : 2016-07-03DOI: 10.1109/ICD.2016.7547652
Cai-jing, N. Zhang, Ma-Zhong, Peng-Min, Xiaoguang Shang, Z. Jia, Linjun Wang
In the process of the operation of 750kV transmission line, the insulator should be detected in time and effectively. As a fast and efficient method to detect the discharge of insulators, the ultraviolet detection technique is very important in the detection of 750kV insulator. In this paper, we analyzed the ultraviolet detection result of the 750kV Porcelain Insulator artificial contamination test, and then defined two indicators, relative fluctuation of photon number and mean value of spot area to evaluate the severity of discharge. The two indicators, UV photon number and UV spot area were studied in this paper. It is found that UV photon number and UV spot area couldn't evaluate the severity of insulator discharge quantitatively, but relative fluctuation of photon number and stage mean value of spot area could quantitatively evaluate the severity of insulator discharge. The results of this paper is of great significance to the application of UV detection technology in the detection of 750kV insulator.
{"title":"The quantitative indicators of 750kV Porcelain Insulator in UV detection based on artificial contamination test","authors":"Cai-jing, N. Zhang, Ma-Zhong, Peng-Min, Xiaoguang Shang, Z. Jia, Linjun Wang","doi":"10.1109/ICD.2016.7547652","DOIUrl":"https://doi.org/10.1109/ICD.2016.7547652","url":null,"abstract":"In the process of the operation of 750kV transmission line, the insulator should be detected in time and effectively. As a fast and efficient method to detect the discharge of insulators, the ultraviolet detection technique is very important in the detection of 750kV insulator. In this paper, we analyzed the ultraviolet detection result of the 750kV Porcelain Insulator artificial contamination test, and then defined two indicators, relative fluctuation of photon number and mean value of spot area to evaluate the severity of discharge. The two indicators, UV photon number and UV spot area were studied in this paper. It is found that UV photon number and UV spot area couldn't evaluate the severity of insulator discharge quantitatively, but relative fluctuation of photon number and stage mean value of spot area could quantitatively evaluate the severity of insulator discharge. The results of this paper is of great significance to the application of UV detection technology in the detection of 750kV insulator.","PeriodicalId":306397,"journal":{"name":"2016 IEEE International Conference on Dielectrics (ICD)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117319109","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}
Pub Date : 2016-07-03DOI: 10.1109/ICD.2016.7547700
Chongzhi Zhao, Y. Song, Yanghcun Cheng, Yang Xue
Oil-cellulose insulation system is used widely in electric power transformers. Partial discharges (PD) are considered to be important to destroy the oil-impregnated pressboard insulation system. Many types of defects can lead to PDs. At the same time, PDs gradually destroy the pressboard, product conductive channels in it. Until now, it is still very difficult to diagnosis the severity of the defects by PDs. In this paper, high voltage experiments were carried out on oil-impregnated pressboards with ball-plate electrode configuration, to research features of the PDs just before the breakdown. These features were used to predict if the defect is leading to a breakdown immediately. Several levels of high voltages were put on fifty specimens to produce carbonized trees, and let the trees propagate inside the pressboards until the pressboards were broken down. The PD impulses were recorded during the experiments. The statistical distributions of some characteristics of PDs just before the breakdown, such as the apparent discharge in one second, the total apparent discharge, the phase range width and the pulse number per second, were obtained. Through the cumulative probability function or the probability density function of the statistical distributions, the probability of the electric breakdown of pressboards can be calculated, so the breakdown can be predicted.
{"title":"Risk assessment of oil impregnated pressboards using the statistical distribution of partial discharge before breakdown","authors":"Chongzhi Zhao, Y. Song, Yanghcun Cheng, Yang Xue","doi":"10.1109/ICD.2016.7547700","DOIUrl":"https://doi.org/10.1109/ICD.2016.7547700","url":null,"abstract":"Oil-cellulose insulation system is used widely in electric power transformers. Partial discharges (PD) are considered to be important to destroy the oil-impregnated pressboard insulation system. Many types of defects can lead to PDs. At the same time, PDs gradually destroy the pressboard, product conductive channels in it. Until now, it is still very difficult to diagnosis the severity of the defects by PDs. In this paper, high voltage experiments were carried out on oil-impregnated pressboards with ball-plate electrode configuration, to research features of the PDs just before the breakdown. These features were used to predict if the defect is leading to a breakdown immediately. Several levels of high voltages were put on fifty specimens to produce carbonized trees, and let the trees propagate inside the pressboards until the pressboards were broken down. The PD impulses were recorded during the experiments. The statistical distributions of some characteristics of PDs just before the breakdown, such as the apparent discharge in one second, the total apparent discharge, the phase range width and the pulse number per second, were obtained. Through the cumulative probability function or the probability density function of the statistical distributions, the probability of the electric breakdown of pressboards can be calculated, so the breakdown can be predicted.","PeriodicalId":306397,"journal":{"name":"2016 IEEE International Conference on Dielectrics (ICD)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131023980","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}
Pub Date : 2016-07-03DOI: 10.1109/ICD.2016.7547810
R. Gremaud, Z. Zhao, M. Baur
Polarization and depolarization measurements of alumina-filled epoxy samples are presented. Discussed are the effects of temperature and electric field, as well as the dependences on sample thickness, contacting method and aging duration on DC currents. Such investigations are crucial to establish reliable generic conduction models usable on real-scale HVDC insulation components.
{"title":"Measurement of DC conduction in alumina-filled epoxy","authors":"R. Gremaud, Z. Zhao, M. Baur","doi":"10.1109/ICD.2016.7547810","DOIUrl":"https://doi.org/10.1109/ICD.2016.7547810","url":null,"abstract":"Polarization and depolarization measurements of alumina-filled epoxy samples are presented. Discussed are the effects of temperature and electric field, as well as the dependences on sample thickness, contacting method and aging duration on DC currents. Such investigations are crucial to establish reliable generic conduction models usable on real-scale HVDC insulation components.","PeriodicalId":306397,"journal":{"name":"2016 IEEE International Conference on Dielectrics (ICD)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134177944","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}
Pub Date : 2016-07-03DOI: 10.1109/ICD.2016.7547640
H. Mitsudome, Yuuya Akinaga, K. Matsuo, M. Kozako, M. Hikita, Y. Ikeda, K. Taniguchi, Y. Nakamura, K. Okamoto
This paper deals with partial discharge (PD) location in a power module by measuring electromagnetic (EM) wave of PD using four loop sensors. As the distance between the sensor and PD source decreases, the peak to peak magnitude of the first wave of detected EM wave was found to increase using four sensors array. An attempt is made to locate PD source using output electromagnetic waves detected four loop sensors by the time of flight method. As a result, the present method is found to allow PD location with location identification error of 5 mm.
{"title":"Basic study on partial discharge location in power module","authors":"H. Mitsudome, Yuuya Akinaga, K. Matsuo, M. Kozako, M. Hikita, Y. Ikeda, K. Taniguchi, Y. Nakamura, K. Okamoto","doi":"10.1109/ICD.2016.7547640","DOIUrl":"https://doi.org/10.1109/ICD.2016.7547640","url":null,"abstract":"This paper deals with partial discharge (PD) location in a power module by measuring electromagnetic (EM) wave of PD using four loop sensors. As the distance between the sensor and PD source decreases, the peak to peak magnitude of the first wave of detected EM wave was found to increase using four sensors array. An attempt is made to locate PD source using output electromagnetic waves detected four loop sensors by the time of flight method. As a result, the present method is found to allow PD location with location identification error of 5 mm.","PeriodicalId":306397,"journal":{"name":"2016 IEEE International Conference on Dielectrics (ICD)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134379661","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}
Pub Date : 2016-07-03DOI: 10.1109/ICD.2016.7547530
V. Belko, O. Emelyanov, I. Ivanov
Metallized film capacitors have an ability to withstand the breakdown of dielectric film due to a “self-healing” feature. The optimal design of metallized electrodes' patterns guarantees high reliability of metallized film capacitors. This paper presents the results of numerical simulation of the intersegment gate current destruction during self-healing by means of COMSOL Multiphysics software. The model takes into consideration the heat flow from metal layer to polymer film since it has significant influence on destruction process dynamics. The simulation results were shown to be in good agreement with the experimental data.
{"title":"The experimental investigation and numerical simulation of self-healing in metallized film capacitors","authors":"V. Belko, O. Emelyanov, I. Ivanov","doi":"10.1109/ICD.2016.7547530","DOIUrl":"https://doi.org/10.1109/ICD.2016.7547530","url":null,"abstract":"Metallized film capacitors have an ability to withstand the breakdown of dielectric film due to a “self-healing” feature. The optimal design of metallized electrodes' patterns guarantees high reliability of metallized film capacitors. This paper presents the results of numerical simulation of the intersegment gate current destruction during self-healing by means of COMSOL Multiphysics software. The model takes into consideration the heat flow from metal layer to polymer film since it has significant influence on destruction process dynamics. The simulation results were shown to be in good agreement with the experimental data.","PeriodicalId":306397,"journal":{"name":"2016 IEEE International Conference on Dielectrics (ICD)","volume":" 27","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113952117","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}
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