Pub Date : 2019-10-01DOI: 10.1109/ICEPE-ST.2019.8928770
Jin Guo, Xu Jiang, W. Du, Yuanjing Lu, Haibin Wang
It is a complex issue for predicting the thermal interrupting capability of a circuit breaker from the simulations, lots of discussions have been going on at home and aboard, and more requirements seem to be proposed for its engineering applications in modern stages. In this paper, an interruption simulation model for 252kV self-blast SF6 circuit breaker is built according to the MHD theory. The interruption process are simulated, and the variation characteristics of gas pressure, temperature, velocity are obtained at current passing zero. With several experimental verification provided, including success and failure results, simulation and experiment results are compared. The arc conductance (G200, G300, G500) at 200ns, 300ns, 500ns before current zero for various arcing times, power frequencies and breaker samples are computed by present method. Much attention is paid to the comparisons of G200, G300 and G500. Results show that the G200 can be used as an indicator for predicting the thermal interruption capability and the investigations in this paper can be a benefit for the design of SF6 circuit breakers.
{"title":"Investigations on the Thermal Interrupting Capability of A Self-blast Type SF6 Circuit Breaker","authors":"Jin Guo, Xu Jiang, W. Du, Yuanjing Lu, Haibin Wang","doi":"10.1109/ICEPE-ST.2019.8928770","DOIUrl":"https://doi.org/10.1109/ICEPE-ST.2019.8928770","url":null,"abstract":"It is a complex issue for predicting the thermal interrupting capability of a circuit breaker from the simulations, lots of discussions have been going on at home and aboard, and more requirements seem to be proposed for its engineering applications in modern stages. In this paper, an interruption simulation model for 252kV self-blast SF6 circuit breaker is built according to the MHD theory. The interruption process are simulated, and the variation characteristics of gas pressure, temperature, velocity are obtained at current passing zero. With several experimental verification provided, including success and failure results, simulation and experiment results are compared. The arc conductance (G200, G300, G500) at 200ns, 300ns, 500ns before current zero for various arcing times, power frequencies and breaker samples are computed by present method. Much attention is paid to the comparisons of G200, G300 and G500. Results show that the G200 can be used as an indicator for predicting the thermal interruption capability and the investigations in this paper can be a benefit for the design of SF6 circuit breakers.","PeriodicalId":392306,"journal":{"name":"2019 5th International Conference on Electric Power Equipment - Switching Technology (ICEPE-ST)","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115000814","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 : 2019-10-01DOI: 10.1109/ICEPE-ST.2019.8928670
Hongxu Li, B. Xiang, M. Junaid, Yingsan Geng, Zhiyuan Liu, Jianhua Wang
Previous Studies showed that liquid nitrogen (LN2) has good insulating properties and reseasonable DC current breaking performance. However, there is still no research on arc conductance of liquid nitrogen and on contact erosion in DC current interruption. The objective of this paper is to understand the arc conductance of LN2 and the contact erosion in DC current interruption. Air arc was also studied as a benchmark. DC Current of 110-210 A were applied, which is initiated by a C-L-R discharging. Butt type contacts were chosen. The contact diameter was 25 mm and the contact gaps were 20 mm. Two kinds of contact materials were chosen, which were pure copper and tungsten copper, respectively. A drawn arc was initiated. The average opening velocity was 0.6 m/s. Experimental results showed the arc conductance during arcing in LN2 and in air. In successful breaking, the arc conductance declined to zero quickly without a "plateau" before current zero. While in failed breaking, there was a "plateau" after a quick decline of the arc conductance. The plateau of the arc conductance increased from 0.3 S to 1.3 S when the current increased from 185 to 210 A. Arc conductance in LN2 was approximatley two-thirds of that in air.The contact erosion area in LN2 was nearly half of that in air after arcing, while depth of erosion was nearly the same. SEM photos revealed that the droplet-like metal balls on the contact surfaces in LN2 were much higher than that in air, which implied the contact surface after arcing in LN2 was rougher than in air.
{"title":"Arc Conductance and Contact Erosion in Liquid Nitrogen under DC Current Interruption","authors":"Hongxu Li, B. Xiang, M. Junaid, Yingsan Geng, Zhiyuan Liu, Jianhua Wang","doi":"10.1109/ICEPE-ST.2019.8928670","DOIUrl":"https://doi.org/10.1109/ICEPE-ST.2019.8928670","url":null,"abstract":"Previous Studies showed that liquid nitrogen (LN2) has good insulating properties and reseasonable DC current breaking performance. However, there is still no research on arc conductance of liquid nitrogen and on contact erosion in DC current interruption. The objective of this paper is to understand the arc conductance of LN2 and the contact erosion in DC current interruption. Air arc was also studied as a benchmark. DC Current of 110-210 A were applied, which is initiated by a C-L-R discharging. Butt type contacts were chosen. The contact diameter was 25 mm and the contact gaps were 20 mm. Two kinds of contact materials were chosen, which were pure copper and tungsten copper, respectively. A drawn arc was initiated. The average opening velocity was 0.6 m/s. Experimental results showed the arc conductance during arcing in LN2 and in air. In successful breaking, the arc conductance declined to zero quickly without a \"plateau\" before current zero. While in failed breaking, there was a \"plateau\" after a quick decline of the arc conductance. The plateau of the arc conductance increased from 0.3 S to 1.3 S when the current increased from 185 to 210 A. Arc conductance in LN2 was approximatley two-thirds of that in air.The contact erosion area in LN2 was nearly half of that in air after arcing, while depth of erosion was nearly the same. SEM photos revealed that the droplet-like metal balls on the contact surfaces in LN2 were much higher than that in air, which implied the contact surface after arcing in LN2 was rougher than in air.","PeriodicalId":392306,"journal":{"name":"2019 5th International Conference on Electric Power Equipment - Switching Technology (ICEPE-ST)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125555311","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}
This paper presents a novel method which is called spiral tube damping bus-bar to suppress VFTO (very fast transient overvoltage) in GIS. The suppressing mechanism of the new method to restrain VFTO is analyzed. And the structure characteristics of damping bus-bar is introduced as well. Furthermore, a 550kV GIS test platform is set up to check the mitigation effect of the damping bus-bar. The experimental results show that the damping bus-bar exhibits excellent suppressing effect of VFTO, which can attenuate the maximum amplitude of VFTO from 2.42p.u. to 1.49 p.u. And the number of SF6 gas breakdown and its duration also decrease dramatically. The measurement results also reveal that damping bus-bar has another favorable ability which can restrain the high frequency component of VFTO. All the superior performance of damping bus-bar indicate it is a method with broad prospects and bright future in engineering application.
{"title":"A Novel Method of Suppressing VFTO in GIS –Spiral Tube Damping Bus-bar","authors":"Chao Li, Xixiu Wu, Xin Yang, Yu Feng, Huan Wang, Hui Hou","doi":"10.1109/ICEPE-ST.2019.8928697","DOIUrl":"https://doi.org/10.1109/ICEPE-ST.2019.8928697","url":null,"abstract":"This paper presents a novel method which is called spiral tube damping bus-bar to suppress VFTO (very fast transient overvoltage) in GIS. The suppressing mechanism of the new method to restrain VFTO is analyzed. And the structure characteristics of damping bus-bar is introduced as well. Furthermore, a 550kV GIS test platform is set up to check the mitigation effect of the damping bus-bar. The experimental results show that the damping bus-bar exhibits excellent suppressing effect of VFTO, which can attenuate the maximum amplitude of VFTO from 2.42p.u. to 1.49 p.u. And the number of SF6 gas breakdown and its duration also decrease dramatically. The measurement results also reveal that damping bus-bar has another favorable ability which can restrain the high frequency component of VFTO. All the superior performance of damping bus-bar indicate it is a method with broad prospects and bright future in engineering application.","PeriodicalId":392306,"journal":{"name":"2019 5th International Conference on Electric Power Equipment - Switching Technology (ICEPE-ST)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127047095","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 : 2019-10-01DOI: 10.1109/ICEPE-ST.2019.8928671
Yosuke Ogura, Y. Yokomizu, T. Fukutsuka, K. Oshima
Concerning a direct current flowing through commutator-segments in a DC motor, first, this paper describes the attempt at constructing theoretical system to derive the direct-current commutation process during sliding movement. The theoretical system is based on (i) electrical circuit equations including concentration resistances, (ii) electric power balance equations taken into account of contact-part temperatures, and (iii) contact forces applied on sliding surfaces. Second, the constructed theoretical system is applied to an equipment for simulating brush and commutator segments to derive the current commutation process during the sliding movement and finally to evaluate a residual current.
{"title":"Theoretical Derivation of Current Commutation Process during Electrical-Contact Sliding Movement in Model DC Motor","authors":"Yosuke Ogura, Y. Yokomizu, T. Fukutsuka, K. Oshima","doi":"10.1109/ICEPE-ST.2019.8928671","DOIUrl":"https://doi.org/10.1109/ICEPE-ST.2019.8928671","url":null,"abstract":"Concerning a direct current flowing through commutator-segments in a DC motor, first, this paper describes the attempt at constructing theoretical system to derive the direct-current commutation process during sliding movement. The theoretical system is based on (i) electrical circuit equations including concentration resistances, (ii) electric power balance equations taken into account of contact-part temperatures, and (iii) contact forces applied on sliding surfaces. Second, the constructed theoretical system is applied to an equipment for simulating brush and commutator segments to derive the current commutation process during the sliding movement and finally to evaluate a residual current.","PeriodicalId":392306,"journal":{"name":"2019 5th International Conference on Electric Power Equipment - Switching Technology (ICEPE-ST)","volume":"584 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122722993","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 : 2019-10-01DOI: 10.1109/ICEPE-ST.2019.8928734
H. Jung, Je Uk Yeun, Hee Sub Ahn, Jong Woong Choi, Young Geun Kim, M.R.P. Perret, K. Bousoltane
The most of switching and breaking performances with fluoronitrile mixtures have been successfully conducted according to IEC standards. New development of 170kV 50kA 60Hz GIS with SF6-free solution is introduced in this paper. Instead of SF6, special mixtures which is composed of fluoro-nitrile (C4F7N), carbon dioxide (CO2) and oxygen (O2), is filling in GIS as dielectric, switching and breaking material. This fluoronitrile mixtures as SF6-free solution is able to reduce over than 98% of global warming potential comparing to SF6.
{"title":"Breaking and Switching Performance with Fluoronitile (C4F7N) Mixtures on 170kV 50kA 60Hz GIS","authors":"H. Jung, Je Uk Yeun, Hee Sub Ahn, Jong Woong Choi, Young Geun Kim, M.R.P. Perret, K. Bousoltane","doi":"10.1109/ICEPE-ST.2019.8928734","DOIUrl":"https://doi.org/10.1109/ICEPE-ST.2019.8928734","url":null,"abstract":"The most of switching and breaking performances with fluoronitrile mixtures have been successfully conducted according to IEC standards. New development of 170kV 50kA 60Hz GIS with SF6-free solution is introduced in this paper. Instead of SF6, special mixtures which is composed of fluoro-nitrile (C4F7N), carbon dioxide (CO2) and oxygen (O2), is filling in GIS as dielectric, switching and breaking material. This fluoronitrile mixtures as SF6-free solution is able to reduce over than 98% of global warming potential comparing to SF6.","PeriodicalId":392306,"journal":{"name":"2019 5th International Conference on Electric Power Equipment - Switching Technology (ICEPE-ST)","volume":"201 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114272512","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 : 2019-10-01DOI: 10.1109/ICEPE-ST.2019.8928718
Chen Liu, Qiang Li, C. Su, Meng Shen, Yongcheng Wang, Xingping Gou, Xiaoyan Guo
This paper introduces insulation tests of a ±535kV mechanical high voltage DC circuit breaker, which is used for Zhangbei flexile DC transmission project. First, the load characteristics of each branch were analyzed, including main branch, transfer branch, energy dissipation branch and buffer branch, and the specific test items were proposed. Then, the test circuit and arrangement of lightning impulse withstand voltage were analyzed, switching overvoltage and test waveform of DCCB were also discussed. At last, long-term DC partial discharge measurement and characteristics were analyzed. This article also discussed some problems and solutions encountered in specific tests.
{"title":"±535kV High Voltage DC Circuit Breaker Insulation Test Analysis","authors":"Chen Liu, Qiang Li, C. Su, Meng Shen, Yongcheng Wang, Xingping Gou, Xiaoyan Guo","doi":"10.1109/ICEPE-ST.2019.8928718","DOIUrl":"https://doi.org/10.1109/ICEPE-ST.2019.8928718","url":null,"abstract":"This paper introduces insulation tests of a ±535kV mechanical high voltage DC circuit breaker, which is used for Zhangbei flexile DC transmission project. First, the load characteristics of each branch were analyzed, including main branch, transfer branch, energy dissipation branch and buffer branch, and the specific test items were proposed. Then, the test circuit and arrangement of lightning impulse withstand voltage were analyzed, switching overvoltage and test waveform of DCCB were also discussed. At last, long-term DC partial discharge measurement and characteristics were analyzed. This article also discussed some problems and solutions encountered in specific tests.","PeriodicalId":392306,"journal":{"name":"2019 5th International Conference on Electric Power Equipment - Switching Technology (ICEPE-ST)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122130364","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 : 2019-10-01DOI: 10.1109/ICEPE-ST.2019.8928937
Jee-yong Park, M. Cui, C. Bae, Young-geun Kim
The previous design process for a High Voltage Circuit Breaker (hereafter HVCB) includes the steps of ‘basic design’, ‘production’, ‘testing’, and ‘commercialization’ for when a product achieved the targeted performance. If the targeted performance could not be obtained through testing, an improved design was derived through the results of Computer-aided engineering (hereafter CAE) analysis, and this testing process was repeated until the targeted performance was achieved. This process was consumed a significant amount of time and resources. However by utilizing Coupled Fluid-mechanical dynamics analysis, by being able to verify the basic functionality of the circuit breakers (hereafter CB) through pre-analysis before having to manufacture and test prototypes, it was not only possible to minimize the number of design revisions and test cycles required for the testing and manufacturing of the circuit breakers, but it was also possible to optimize the form of the circuit breaker based on the results obtained from CAE analysis in the initial design stages. For this purpose, this research paper proposes a method based on Coupled Fluid-mechanical dynamics analysis. This paper additionally introduces calculations with respect to the reaction forces of the Oil-dash pot (hereafter ODP), which have an obvious influence on the latter half section of actual travel curves.
{"title":"Simulation on the Coupled Fluid-Mechanical Dynamic Analysis of High-voltage Self-blast Circuit Breakers","authors":"Jee-yong Park, M. Cui, C. Bae, Young-geun Kim","doi":"10.1109/ICEPE-ST.2019.8928937","DOIUrl":"https://doi.org/10.1109/ICEPE-ST.2019.8928937","url":null,"abstract":"The previous design process for a High Voltage Circuit Breaker (hereafter HVCB) includes the steps of ‘basic design’, ‘production’, ‘testing’, and ‘commercialization’ for when a product achieved the targeted performance. If the targeted performance could not be obtained through testing, an improved design was derived through the results of Computer-aided engineering (hereafter CAE) analysis, and this testing process was repeated until the targeted performance was achieved. This process was consumed a significant amount of time and resources. However by utilizing Coupled Fluid-mechanical dynamics analysis, by being able to verify the basic functionality of the circuit breakers (hereafter CB) through pre-analysis before having to manufacture and test prototypes, it was not only possible to minimize the number of design revisions and test cycles required for the testing and manufacturing of the circuit breakers, but it was also possible to optimize the form of the circuit breaker based on the results obtained from CAE analysis in the initial design stages. For this purpose, this research paper proposes a method based on Coupled Fluid-mechanical dynamics analysis. This paper additionally introduces calculations with respect to the reaction forces of the Oil-dash pot (hereafter ODP), which have an obvious influence on the latter half section of actual travel curves.","PeriodicalId":392306,"journal":{"name":"2019 5th International Conference on Electric Power Equipment - Switching Technology (ICEPE-ST)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116721754","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 : 2019-10-01DOI: 10.1109/ICEPE-ST.2019.8928792
N. Belda, R. Smeets, R. M. Nijman, M. Poikilidis, C. Plet
Recently, several manufacturers have proposed and developed prototypes of high-voltage direct current (HVDC) circuit breakers (CBs) based on various dc current interruption principles. However, due to a lack of operational experience with this type of equipment, no clearly defined requirements that these new developments should satisfy exist. To define and refine justified test requirements, a thorough understanding of the interactions between the internal components of the HVDC CBs and the stresses on these components is necessary. For this purpose, an experimental dc CB based on the active current injection technique is setup in a high-power laboratory. The contribution of this paper focuses on the performance of vacuum interrupters (VIs) for dc CB application. The performances of three different VIs, designed for ac application, are investigated. About 200 tests, under different test conditions, have been conducted in which up to 850 current zero crossings (CZCs) are created. The test results are analyzed and presented in detail along with statistical information obtained from the analysis of the measured parameters. The test results serve to identify the critical stages of current interruption process that need to be demonstrated during typical current interruption tests of HVDC CBs. It is found that the three types of VIs behave very differently; the rate-of-change of current near CZCs is not the only key parameter; and successful current interruptions can still be achieved after re-ignitions and re-strikes.
{"title":"High-Frequency Current Interruption of Vacuum Interrupters in an Experimental DC Circuit Breaker","authors":"N. Belda, R. Smeets, R. M. Nijman, M. Poikilidis, C. Plet","doi":"10.1109/ICEPE-ST.2019.8928792","DOIUrl":"https://doi.org/10.1109/ICEPE-ST.2019.8928792","url":null,"abstract":"Recently, several manufacturers have proposed and developed prototypes of high-voltage direct current (HVDC) circuit breakers (CBs) based on various dc current interruption principles. However, due to a lack of operational experience with this type of equipment, no clearly defined requirements that these new developments should satisfy exist. To define and refine justified test requirements, a thorough understanding of the interactions between the internal components of the HVDC CBs and the stresses on these components is necessary. For this purpose, an experimental dc CB based on the active current injection technique is setup in a high-power laboratory. The contribution of this paper focuses on the performance of vacuum interrupters (VIs) for dc CB application. The performances of three different VIs, designed for ac application, are investigated. About 200 tests, under different test conditions, have been conducted in which up to 850 current zero crossings (CZCs) are created. The test results are analyzed and presented in detail along with statistical information obtained from the analysis of the measured parameters. The test results serve to identify the critical stages of current interruption process that need to be demonstrated during typical current interruption tests of HVDC CBs. It is found that the three types of VIs behave very differently; the rate-of-change of current near CZCs is not the only key parameter; and successful current interruptions can still be achieved after re-ignitions and re-strikes.","PeriodicalId":392306,"journal":{"name":"2019 5th International Conference on Electric Power Equipment - Switching Technology (ICEPE-ST)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129868234","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 : 2019-10-01DOI: 10.1109/ICEPE-ST.2019.8928899
D. Jeong, J. Park, Y. Jeon, Joo Hyun Lee
Epoxy resin insulators are widely used in electrical systems and applied such as a gas compartment and conductor support of Gas insulated switchgear. Thermosetting plastic is a kind of plastics which can burns, become powder and produce gas when it is heated without melting such as thermoplastic. Once the material is hardened, it does not melted again. For this reason, research is needed to replace thermosetting resin insulation with recyclable thermoplastic resin insulation. Thermoplastic materials can be used as electrical insulation in power apparatus applications when the proper electrical designs and suitable manufacturing methods are combined. In this study, we introduce the development of products using recyclable thermoplastic to apply to electrical systems.
{"title":"Development of Thermoplastic Materials for the Application of Eco-friendly","authors":"D. Jeong, J. Park, Y. Jeon, Joo Hyun Lee","doi":"10.1109/ICEPE-ST.2019.8928899","DOIUrl":"https://doi.org/10.1109/ICEPE-ST.2019.8928899","url":null,"abstract":"Epoxy resin insulators are widely used in electrical systems and applied such as a gas compartment and conductor support of Gas insulated switchgear. Thermosetting plastic is a kind of plastics which can burns, become powder and produce gas when it is heated without melting such as thermoplastic. Once the material is hardened, it does not melted again. For this reason, research is needed to replace thermosetting resin insulation with recyclable thermoplastic resin insulation. Thermoplastic materials can be used as electrical insulation in power apparatus applications when the proper electrical designs and suitable manufacturing methods are combined. In this study, we introduce the development of products using recyclable thermoplastic to apply to electrical systems.","PeriodicalId":392306,"journal":{"name":"2019 5th International Conference on Electric Power Equipment - Switching Technology (ICEPE-ST)","volume":"188 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124151296","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 : 2019-10-01DOI: 10.1109/ICEPE-ST.2019.8928753
F. Kong, Penghao Zhang, C. Ren, Cheng Zhang, T. Shao
For the high voltage vacuum interrupter and GIS (Gas insulated switchgear), surface flashover at the dielectric/vacuum and dielectric/air interfaces result in the insulation failure sometimes, which restricts the development of high voltage electrical equipment. The dynamic performances of surface charges on the dielectric are associated with surface flashover closely. Film deposition on the dielectric surface is regarded as a promising mothed to improve surface insulating performance of dielectric material. In this paper, a TiN film deposition method of using atmospheric-pressure plasma jet (APPJ) is proposed. Before and after the plasma modification with TiN film, the electrical properties of dielectric surface are discussed, respectively. The DC flashover voltage of sample with TiN film is increased obviously.
{"title":"Preparation and Properties of Polystyrene Deposited with TiN Film Using Atmospheric-Pressure Plasma Jet","authors":"F. Kong, Penghao Zhang, C. Ren, Cheng Zhang, T. Shao","doi":"10.1109/ICEPE-ST.2019.8928753","DOIUrl":"https://doi.org/10.1109/ICEPE-ST.2019.8928753","url":null,"abstract":"For the high voltage vacuum interrupter and GIS (Gas insulated switchgear), surface flashover at the dielectric/vacuum and dielectric/air interfaces result in the insulation failure sometimes, which restricts the development of high voltage electrical equipment. The dynamic performances of surface charges on the dielectric are associated with surface flashover closely. Film deposition on the dielectric surface is regarded as a promising mothed to improve surface insulating performance of dielectric material. In this paper, a TiN film deposition method of using atmospheric-pressure plasma jet (APPJ) is proposed. Before and after the plasma modification with TiN film, the electrical properties of dielectric surface are discussed, respectively. The DC flashover voltage of sample with TiN film is increased obviously.","PeriodicalId":392306,"journal":{"name":"2019 5th International Conference on Electric Power Equipment - Switching Technology (ICEPE-ST)","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126245251","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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