Pub Date : 2012-11-26DOI: 10.1109/ICHVE.2012.6357111
Yong Liu, B. Du, Nan Chen, Z. Yin
Based on the present investigation of leakage current for evaluating and monitoring outdoor insulators, the multiscale nonlinear technique is proposed to analyze the dynamic characteristics of leakage current through the artificial contamination experiments. Contamination tests were conducted in a laboratory by employing heavy salt fog without the deposition of non-soluble contamination. Based on the corresponding relationship between the leakage current and the behavior in heavy-fog conditions, the temporal series of leakage current are extended to two phase space by using a phase-space reconstructed method. In accordance with the dynamic behaviors on the insulator surface, the multiscale entropy of leakage current is obtained to investigate the underlying nonlinear characteristics in relation with the variation of contamination degree, ambient temperature and relative humidity. Associated with the quantitative analysis of mutiscale technique, the results can be helpful to improve the accuracy of insulator monitoring for reducing the accidents.
{"title":"Multiscale nonlinear dynamic characteristics of leakage current for monitoring polymer insulators in salt-fog conditions","authors":"Yong Liu, B. Du, Nan Chen, Z. Yin","doi":"10.1109/ICHVE.2012.6357111","DOIUrl":"https://doi.org/10.1109/ICHVE.2012.6357111","url":null,"abstract":"Based on the present investigation of leakage current for evaluating and monitoring outdoor insulators, the multiscale nonlinear technique is proposed to analyze the dynamic characteristics of leakage current through the artificial contamination experiments. Contamination tests were conducted in a laboratory by employing heavy salt fog without the deposition of non-soluble contamination. Based on the corresponding relationship between the leakage current and the behavior in heavy-fog conditions, the temporal series of leakage current are extended to two phase space by using a phase-space reconstructed method. In accordance with the dynamic behaviors on the insulator surface, the multiscale entropy of leakage current is obtained to investigate the underlying nonlinear characteristics in relation with the variation of contamination degree, ambient temperature and relative humidity. Associated with the quantitative analysis of mutiscale technique, the results can be helpful to improve the accuracy of insulator monitoring for reducing the accidents.","PeriodicalId":6375,"journal":{"name":"2012 International Conference on High Voltage Engineering and Application","volume":"31 1","pages":"298-301"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83458860","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 : 2012-11-26DOI: 10.1109/ICHVE.2012.6357139
Yiyu Gong, Jian Li, Xinzhu Yan
The insulators coated with super-hydrophobic coating have good performance of anti-icing. But the super-hydrophobic coating can't completely preventing ice accumulation, especially the soft rime. In order to solve this problem, a kind of semiconductor coating was prepared in this paper,and then the super-hydrophobic coating was structured on the semiconductor film,and the basic property of this kind of composite anti-ice coating was tested. The results show that the semiconductor film have good insulation performance,the temperature of semiconductor film can be raised 3~6°C under high voltage and the water contact of the super-hydrophobic coating surface can reach to 155°. The combination of the super-hydrophobicity of the super-hydrophobic coating and the electric heating property of the semiconductor film are expected to solve the anti-icing problem of the insulators on the transmission line completely.
{"title":"Preparation and basic property of super hydrophobic coating based on semiconductor film","authors":"Yiyu Gong, Jian Li, Xinzhu Yan","doi":"10.1109/ICHVE.2012.6357139","DOIUrl":"https://doi.org/10.1109/ICHVE.2012.6357139","url":null,"abstract":"The insulators coated with super-hydrophobic coating have good performance of anti-icing. But the super-hydrophobic coating can't completely preventing ice accumulation, especially the soft rime. In order to solve this problem, a kind of semiconductor coating was prepared in this paper,and then the super-hydrophobic coating was structured on the semiconductor film,and the basic property of this kind of composite anti-ice coating was tested. The results show that the semiconductor film have good insulation performance,the temperature of semiconductor film can be raised 3~6°C under high voltage and the water contact of the super-hydrophobic coating surface can reach to 155°. The combination of the super-hydrophobicity of the super-hydrophobic coating and the electric heating property of the semiconductor film are expected to solve the anti-icing problem of the insulators on the transmission line completely.","PeriodicalId":6375,"journal":{"name":"2012 International Conference on High Voltage Engineering and Application","volume":"28 1","pages":"417-421"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89290189","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 : 2012-11-26DOI: 10.1109/ICHVE.2012.6357006
S. Balaji, K. Latha Maheswari, S. Usa
The breakdown characteristics of any given insulation is determined by its voltage-time (v-t) characteristics. The superior characteristics of compressed air will mitigate the use of SF6 gas in Medium voltage circuit breakers and indoor design gas CB. In order to analyze the performance of compressed air experiments are carried out for various pressures and waveshapes and compared for different electrode configurations. In this paper voltage-time (v-t) characteristics are extracted for different pressures ranges from 30 mbars to 4000 mbars for impulse overvoltage ranging from 0.064/50μs, 0.4/50μs and 1.2/50μs. The breakdown characteristics are compared for uniform field and non-uniform field configurations. The Parametric constants A and B are obtained using hyperbolic model. The A and B constants are predicted for pressure of 2000 mbars and are compared with the experimental data obtained and error percentage are found.
{"title":"Prediction of v-t Characteristics of air at different pressures","authors":"S. Balaji, K. Latha Maheswari, S. Usa","doi":"10.1109/ICHVE.2012.6357006","DOIUrl":"https://doi.org/10.1109/ICHVE.2012.6357006","url":null,"abstract":"The breakdown characteristics of any given insulation is determined by its voltage-time (v-t) characteristics. The superior characteristics of compressed air will mitigate the use of SF6 gas in Medium voltage circuit breakers and indoor design gas CB. In order to analyze the performance of compressed air experiments are carried out for various pressures and waveshapes and compared for different electrode configurations. In this paper voltage-time (v-t) characteristics are extracted for different pressures ranges from 30 mbars to 4000 mbars for impulse overvoltage ranging from 0.064/50μs, 0.4/50μs and 1.2/50μs. The breakdown characteristics are compared for uniform field and non-uniform field configurations. The Parametric constants A and B are obtained using hyperbolic model. The A and B constants are predicted for pressure of 2000 mbars and are compared with the experimental data obtained and error percentage are found.","PeriodicalId":6375,"journal":{"name":"2012 International Conference on High Voltage Engineering and Application","volume":"8 1","pages":"43-46"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91126379","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 : 2012-11-26DOI: 10.1109/ICHVE.2012.6357071
P. Yutthagowith, A. Kunakorn, S. Potivejkul, P. Chaisiri
This paper proposes an equivalent circuit of grounding electrode which has validity upto a frequency range of sub-sequence stroke lightning current. The equivalent circuit is modelled by lumped and distributed parameters based on quasistatic assumption. In this study, only a grounding electrode installed horizontally is in consideration. The limitation of the uniform distributed equivalent circuit of a grounding electrode is presented. The non-uniform distributed equivalent circuit is proposed. The proposed equivalent circuits are verified by comparison of the results of ground potential rise computed by the proposed circuit, the partial element equivalent circuit method, and available experimental data. The proposed equivalent circuit can be adapted for being the models for development and design of the grounding system for lightning protection system in transmission and distribution systems in an effective way.
{"title":"Transient equivalent circuit of a horizontal grounding electrode","authors":"P. Yutthagowith, A. Kunakorn, S. Potivejkul, P. Chaisiri","doi":"10.1109/ICHVE.2012.6357071","DOIUrl":"https://doi.org/10.1109/ICHVE.2012.6357071","url":null,"abstract":"This paper proposes an equivalent circuit of grounding electrode which has validity upto a frequency range of sub-sequence stroke lightning current. The equivalent circuit is modelled by lumped and distributed parameters based on quasistatic assumption. In this study, only a grounding electrode installed horizontally is in consideration. The limitation of the uniform distributed equivalent circuit of a grounding electrode is presented. The non-uniform distributed equivalent circuit is proposed. The proposed equivalent circuits are verified by comparison of the results of ground potential rise computed by the proposed circuit, the partial element equivalent circuit method, and available experimental data. The proposed equivalent circuit can be adapted for being the models for development and design of the grounding system for lightning protection system in transmission and distribution systems in an effective way.","PeriodicalId":6375,"journal":{"name":"2012 International Conference on High Voltage Engineering and Application","volume":"27 1","pages":"157-161"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91267628","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 : 2012-11-26DOI: 10.1109/ICHVE.2012.6357036
K. Hotta, H. Kojima, N. Hayakawa, N. Yanagita, T. Kato, T. Rokunohe, H. Okubo
We discussed the development mechanism of the streamer channel leading to breakdown in a short air gap, by using an ultra-high speed measuring system. We clarified that the initiation of the secondary streamer leading to breakdown is attributed to an electron injection from the grounded plane electrode to the residual channel made by the primary streamer. In addition, by selective measurement of the discharge current waveform of single streamer channel leading to breakdown, the breakdown was verified to be dominated by the development of the secondary streamer and the subsequent Joule heating process focusing on the single streamer channel.
{"title":"Streamer development mechanism under non-uniform electric field in air","authors":"K. Hotta, H. Kojima, N. Hayakawa, N. Yanagita, T. Kato, T. Rokunohe, H. Okubo","doi":"10.1109/ICHVE.2012.6357036","DOIUrl":"https://doi.org/10.1109/ICHVE.2012.6357036","url":null,"abstract":"We discussed the development mechanism of the streamer channel leading to breakdown in a short air gap, by using an ultra-high speed measuring system. We clarified that the initiation of the secondary streamer leading to breakdown is attributed to an electron injection from the grounded plane electrode to the residual channel made by the primary streamer. In addition, by selective measurement of the discharge current waveform of single streamer channel leading to breakdown, the breakdown was verified to be dominated by the development of the secondary streamer and the subsequent Joule heating process focusing on the single streamer channel.","PeriodicalId":6375,"journal":{"name":"2012 International Conference on High Voltage Engineering and Application","volume":"3 1","pages":"501-504"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75782544","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 : 2012-11-26DOI: 10.1109/ICHVE.2012.6357117
Zhuqing Fan, Jian Li
Supercapacitors have been focused for their great capacitance, fast charging-discharging with big current, and very long cycle life since they were born. In recent years, with their applications in national security science technology, environmental reservation and so on, the studies on them have become one of the hot spots in the strategic field. This paper presents a preparation that KMnO4 and Na2S2O3 · 5H2O as raw materials, we synthesized MnO2/C core-shell composite material by a hydrothermal method, and analysis on its electrochemical properties. We found that, through the hydrothermal method, we could synthesize MnO2/C core-shell composite material, and the average capacity was 180.2F/g.
{"title":"MnO2/C core-shell composite as electrode material in supercapacitors","authors":"Zhuqing Fan, Jian Li","doi":"10.1109/ICHVE.2012.6357117","DOIUrl":"https://doi.org/10.1109/ICHVE.2012.6357117","url":null,"abstract":"Supercapacitors have been focused for their great capacitance, fast charging-discharging with big current, and very long cycle life since they were born. In recent years, with their applications in national security science technology, environmental reservation and so on, the studies on them have become one of the hot spots in the strategic field. This paper presents a preparation that KMnO<sub>4</sub> and Na<sub>2</sub>S<sub>2</sub>O<sub>3</sub> · 5H<sub>2</sub>O as raw materials, we synthesized MnO<sub>2</sub>/C core-shell composite material by a hydrothermal method, and analysis on its electrochemical properties. We found that, through the hydrothermal method, we could synthesize MnO<sub>2</sub>/C core-shell composite material, and the average capacity was 180.2F/g.","PeriodicalId":6375,"journal":{"name":"2012 International Conference on High Voltage Engineering and Application","volume":"230 1","pages":"318-321"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74527170","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 : 2012-11-26DOI: 10.1109/ICHVE.2012.6357094
Z. Liu, Q. Liu, Z. Wang
Insulating liquids used in power transformers with forced liquid cooling systems could lead to the occurrence of streaming electrification phenomenon, which is a potential hazard to the operation of the equipment. In this study, a rotating disc system was built up in the laboratory so as to study the streaming electrification phenomenon occurred at different insulating liquid-pressboard interfaces under various conditions. The procedure for a single measurement was determined first based on the short-time characteristics of the current waveform. Then a 24-hour continuous measurement was carried out to investigate the long-time characteristics. The recorded waveforms indicated that a short-duration measurement is suitable for assessing the streaming electrification behaviour at a liquid-solid interface. The repeatability of measurements of the same sample in successive four days and the sensitivity of measurements to changing pressboard samples were also evaluated. Results indicated that changing pressboard samples leads to a relatively larger variation. The streaming electrification behaviours of a synthetic ester liquid and a mineral oil were compared. Preliminary results indicated that the synthetic ester liquid tends to generate higher streaming currents than the mineral oil.
{"title":"Sensitivity study on streaming electrification of transformer liquids by using rotating disc method","authors":"Z. Liu, Q. Liu, Z. Wang","doi":"10.1109/ICHVE.2012.6357094","DOIUrl":"https://doi.org/10.1109/ICHVE.2012.6357094","url":null,"abstract":"Insulating liquids used in power transformers with forced liquid cooling systems could lead to the occurrence of streaming electrification phenomenon, which is a potential hazard to the operation of the equipment. In this study, a rotating disc system was built up in the laboratory so as to study the streaming electrification phenomenon occurred at different insulating liquid-pressboard interfaces under various conditions. The procedure for a single measurement was determined first based on the short-time characteristics of the current waveform. Then a 24-hour continuous measurement was carried out to investigate the long-time characteristics. The recorded waveforms indicated that a short-duration measurement is suitable for assessing the streaming electrification behaviour at a liquid-solid interface. The repeatability of measurements of the same sample in successive four days and the sensitivity of measurements to changing pressboard samples were also evaluated. Results indicated that changing pressboard samples leads to a relatively larger variation. The streaming electrification behaviours of a synthetic ester liquid and a mineral oil were compared. Preliminary results indicated that the synthetic ester liquid tends to generate higher streaming currents than the mineral oil.","PeriodicalId":6375,"journal":{"name":"2012 International Conference on High Voltage Engineering and Application","volume":"67 1","pages":"583-586"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73787936","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 : 2012-11-26DOI: 10.1109/ICHVE.2012.6357013
T. Koltunowicz, Q. Zhuang, D. Djairam, J. Smit
AC voltage has been applied on oil impregnated paper with superimposed transients of repetition frequency ranging from 1 kHz to 10 kHz. The time-to-breakdown has been recorded. Then the “accelerated life test analysis” (ALTA) approach is applied to model the lifetime vs. repetition frequency relationship with inverse power, Eyring or exponential laws. During the “accelerated life test analysis”, the recorded life data at multiple repetition frequencies can be inputted simultaneously into the statistical aging model, and the parameters of each life vs. frequency relationship can be estimated. The estimation shows that the inverse power, Eyring or exponential relationships can be applied in our test frequency ranges, and extrapolated to higher or lower frequencies.
{"title":"A statistical aging model for paper oil insulation under repetitive transients","authors":"T. Koltunowicz, Q. Zhuang, D. Djairam, J. Smit","doi":"10.1109/ICHVE.2012.6357013","DOIUrl":"https://doi.org/10.1109/ICHVE.2012.6357013","url":null,"abstract":"AC voltage has been applied on oil impregnated paper with superimposed transients of repetition frequency ranging from 1 kHz to 10 kHz. The time-to-breakdown has been recorded. Then the “accelerated life test analysis” (ALTA) approach is applied to model the lifetime vs. repetition frequency relationship with inverse power, Eyring or exponential laws. During the “accelerated life test analysis”, the recorded life data at multiple repetition frequencies can be inputted simultaneously into the statistical aging model, and the parameters of each life vs. frequency relationship can be estimated. The estimation shows that the inverse power, Eyring or exponential relationships can be applied in our test frequency ranges, and extrapolated to higher or lower frequencies.","PeriodicalId":6375,"journal":{"name":"2012 International Conference on High Voltage Engineering and Application","volume":"11 1","pages":"128-132"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84309520","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 : 2012-11-26DOI: 10.1109/ICHVE.2012.6357022
M. Zhang, Da Zhang, C. Yao, Y. Mi, Shoulong Dong
The leakage current is a main characteristic quantity of contamination level of transmission lines insulator surfaces, measuring insulator leakage current is currently the principal means to monitor the contamination level, but because the environment of transmission lines is very complex, electromagnetic interference will must produce much noise at the time of collecting and testing leakage current, sometime we also get the full wave or half cycle, that means some ways to realize selective measurements, to improve the current sensor's abilities of anti-jamming, selectivity and accuracy when the sensors measure insulator leakage current, an optical fiber sensor was employed to measure leakage current of the insulator strings, which used LED as the photoelectric conversion and light signal stability to detect the current. Some tests in lab were operated that results approved that the optical fiber sensor could achieve selective measurement of leakage current waves, the positive half cycle or negative half cycle, and of cause the full cycle current could be monitored after the differential circuit was improved. It had a great degree of linearity fitting, its sensitivity reached 40mV/mA, and their pertinence coefficients of linear fitting are all more than 99.94%. Its frequency response was 1Hz~10 kHz, which can meet the basic requirements of the leakage current measurement.
{"title":"The measurement method research for leakage current based on LED optical fiber sensor","authors":"M. Zhang, Da Zhang, C. Yao, Y. Mi, Shoulong Dong","doi":"10.1109/ICHVE.2012.6357022","DOIUrl":"https://doi.org/10.1109/ICHVE.2012.6357022","url":null,"abstract":"The leakage current is a main characteristic quantity of contamination level of transmission lines insulator surfaces, measuring insulator leakage current is currently the principal means to monitor the contamination level, but because the environment of transmission lines is very complex, electromagnetic interference will must produce much noise at the time of collecting and testing leakage current, sometime we also get the full wave or half cycle, that means some ways to realize selective measurements, to improve the current sensor's abilities of anti-jamming, selectivity and accuracy when the sensors measure insulator leakage current, an optical fiber sensor was employed to measure leakage current of the insulator strings, which used LED as the photoelectric conversion and light signal stability to detect the current. Some tests in lab were operated that results approved that the optical fiber sensor could achieve selective measurement of leakage current waves, the positive half cycle or negative half cycle, and of cause the full cycle current could be monitored after the differential circuit was improved. It had a great degree of linearity fitting, its sensitivity reached 40mV/mA, and their pertinence coefficients of linear fitting are all more than 99.94%. Its frequency response was 1Hz~10 kHz, which can meet the basic requirements of the leakage current measurement.","PeriodicalId":6375,"journal":{"name":"2012 International Conference on High Voltage Engineering and Application","volume":"134 1","pages":"182-185"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85402173","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 : 2012-11-26DOI: 10.1109/ICHVE.2012.6357114
Yao Zhong, Xiaojian Li
By field measuring and analysis the time-frequency characteristics of the electromagnetic interference in 500kV AC system switch operation, and propose that the electromagnetic interference of switch operation in secondary system manifest as damped oscillation. Simulate the 500kV AC system switch operation by MATLAB-SIMULINK software; get the simulation waveforms of the switch operation, comparing the similarities and differences between the simulation waveform and the field measuring waveform.
{"title":"Field measurement and simulation of electromagnetic interference in 500kV AC system switch operation","authors":"Yao Zhong, Xiaojian Li","doi":"10.1109/ICHVE.2012.6357114","DOIUrl":"https://doi.org/10.1109/ICHVE.2012.6357114","url":null,"abstract":"By field measuring and analysis the time-frequency characteristics of the electromagnetic interference in 500kV AC system switch operation, and propose that the electromagnetic interference of switch operation in secondary system manifest as damped oscillation. Simulate the 500kV AC system switch operation by MATLAB-SIMULINK software; get the simulation waveforms of the switch operation, comparing the similarities and differences between the simulation waveform and the field measuring waveform.","PeriodicalId":6375,"journal":{"name":"2012 International Conference on High Voltage Engineering and Application","volume":"1 1","pages":"254-258"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82131252","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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