Pub Date : 2002-04-07DOI: 10.1109/ELINSL.2002.995918
J. Han, B. Lee, Dong myung Kim
This paper deals with the reliability assessment of polymer insulators for distribution power systems by means of the combined aging test facilities. The specially designed test facilities and the aging cycle are described. From the aging test for 3000 hours, most tested insulators showed only superficial aging. In order to confirm the relationship between laboratory aging and field aging, the test results are compared. Through this study, it can be expected that the polymer insulators without manufacturing defect have a long-term reliability even though the service environment is very severe.
{"title":"Reliability assessment of polymeric insulators by the combined aging test","authors":"J. Han, B. Lee, Dong myung Kim","doi":"10.1109/ELINSL.2002.995918","DOIUrl":"https://doi.org/10.1109/ELINSL.2002.995918","url":null,"abstract":"This paper deals with the reliability assessment of polymer insulators for distribution power systems by means of the combined aging test facilities. The specially designed test facilities and the aging cycle are described. From the aging test for 3000 hours, most tested insulators showed only superficial aging. In order to confirm the relationship between laboratory aging and field aging, the test results are compared. Through this study, it can be expected that the polymer insulators without manufacturing defect have a long-term reliability even though the service environment is very severe.","PeriodicalId":10532,"journal":{"name":"Conference Record of the the 2002 IEEE International Symposium on Electrical Insulation (Cat. No.02CH37316)","volume":"51 1","pages":"224-227"},"PeriodicalIF":0.0,"publicationDate":"2002-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85712643","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 : 2002-04-07DOI: 10.1109/ELINSL.2002.995897
M. Stranges, J. Dymond, M. Aurnou
The investigation of failure mechanisms in stator coils is considered an art and can consume a significant amount of time and valuable resources. The authors have applied rigorous experimental methodology and statistical principles in the investigation of hi-pot failures, analysis of voltage endurance test results and other insulation projects. Application of statistical tools has been found to increase the efficiency of the work and increase confidence in the conclusions. This paper discusses the investigative methods using examples such as failure modes and effects analysis, hypothesis testing, design of experiments and analysis of variance. The discovery of potential areas of process improvement based on voltage endurance testing of one insulation system is discussed.
{"title":"Application of statistical tools to the investigation of coil failures","authors":"M. Stranges, J. Dymond, M. Aurnou","doi":"10.1109/ELINSL.2002.995897","DOIUrl":"https://doi.org/10.1109/ELINSL.2002.995897","url":null,"abstract":"The investigation of failure mechanisms in stator coils is considered an art and can consume a significant amount of time and valuable resources. The authors have applied rigorous experimental methodology and statistical principles in the investigation of hi-pot failures, analysis of voltage endurance test results and other insulation projects. Application of statistical tools has been found to increase the efficiency of the work and increase confidence in the conclusions. This paper discusses the investigative methods using examples such as failure modes and effects analysis, hypothesis testing, design of experiments and analysis of variance. The discovery of potential areas of process improvement based on voltage endurance testing of one insulation system is discussed.","PeriodicalId":10532,"journal":{"name":"Conference Record of the the 2002 IEEE International Symposium on Electrical Insulation (Cat. No.02CH37316)","volume":"66 1","pages":"131-136"},"PeriodicalIF":0.0,"publicationDate":"2002-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79786353","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 : 2002-04-07DOI: 10.1109/ELINSL.2002.995955
T. Imai, Y. Hirano, H. Hirai, S. Kojima, T. Shimizu
Epoxy-silicate nanocomposites were prepared by dispersing synthetic layered silicates modified with alkylammonium ions. In the dispersing process, the organically modified layered silicates were mixed in epoxy resin with shearing, and aggregations of the silicates were removed by centrifugal separation after mixing epoxy resin and silicates. Micrographs taken by transmission electron microscopy (TEM) indicate that the nanocomposites have a mixed morphology including both parallel silicate layers (0.1-0.5 /spl mu/m, 5-15 layers) and exfoliated silicate layers (nano-scale dispersion) area. In terms of thermal resistance properties, the glass transition temperature (T/sub g/) of the nanocomposite was shifted to a higher temperature (/spl Delta/20/spl deg/C) than pure epoxy. Furthermore, dispersion of modified silicate prevented relative permittivity (/spl epsiv//sub r/) and dielectric loss (tan/spl delta/) from increasing at a high temperature above the glass transition temperature.
{"title":"Preparation and properties of epoxy-organically modified layered silicate nanocomposites","authors":"T. Imai, Y. Hirano, H. Hirai, S. Kojima, T. Shimizu","doi":"10.1109/ELINSL.2002.995955","DOIUrl":"https://doi.org/10.1109/ELINSL.2002.995955","url":null,"abstract":"Epoxy-silicate nanocomposites were prepared by dispersing synthetic layered silicates modified with alkylammonium ions. In the dispersing process, the organically modified layered silicates were mixed in epoxy resin with shearing, and aggregations of the silicates were removed by centrifugal separation after mixing epoxy resin and silicates. Micrographs taken by transmission electron microscopy (TEM) indicate that the nanocomposites have a mixed morphology including both parallel silicate layers (0.1-0.5 /spl mu/m, 5-15 layers) and exfoliated silicate layers (nano-scale dispersion) area. In terms of thermal resistance properties, the glass transition temperature (T/sub g/) of the nanocomposite was shifted to a higher temperature (/spl Delta/20/spl deg/C) than pure epoxy. Furthermore, dispersion of modified silicate prevented relative permittivity (/spl epsiv//sub r/) and dielectric loss (tan/spl delta/) from increasing at a high temperature above the glass transition temperature.","PeriodicalId":10532,"journal":{"name":"Conference Record of the the 2002 IEEE International Symposium on Electrical Insulation (Cat. No.02CH37316)","volume":"240 1","pages":"379-383"},"PeriodicalIF":0.0,"publicationDate":"2002-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77171432","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 : 2002-04-07DOI: 10.1109/ELINSL.2002.995971
D. Zheng, Yang Chen, Xiaochun Chi, Jia-xiang Yang
The in-service failures of high voltage apparatus with gaseous-insulation can be predicted according to the behavior of the gas under the applied electric field. It has practical significance for engineers to deduce the failure location, property, and danger level from the partial discharge (PD) signals occurring in insulating gas dielectrics. Thus the signal detected and de-noise technique are obviously very important. The paper presents the basic principle and method for dealing with PD signals employing multiple wavelet transform methods. Practically, demonstrations show that the multiple wavelet transform is very useful and effective for extracting and recognizing PD pulse signals from the defects of high voltage apparatus on-line or off-line. It also makes certain that failures located in the GIS, GIC and GIT, can be precisely measured, located, predicted and monitored.
{"title":"Wavelet de-noise on gas PD signals of coaxial cylinder electrodes","authors":"D. Zheng, Yang Chen, Xiaochun Chi, Jia-xiang Yang","doi":"10.1109/ELINSL.2002.995971","DOIUrl":"https://doi.org/10.1109/ELINSL.2002.995971","url":null,"abstract":"The in-service failures of high voltage apparatus with gaseous-insulation can be predicted according to the behavior of the gas under the applied electric field. It has practical significance for engineers to deduce the failure location, property, and danger level from the partial discharge (PD) signals occurring in insulating gas dielectrics. Thus the signal detected and de-noise technique are obviously very important. The paper presents the basic principle and method for dealing with PD signals employing multiple wavelet transform methods. Practically, demonstrations show that the multiple wavelet transform is very useful and effective for extracting and recognizing PD pulse signals from the defects of high voltage apparatus on-line or off-line. It also makes certain that failures located in the GIS, GIC and GIT, can be precisely measured, located, predicted and monitored.","PeriodicalId":10532,"journal":{"name":"Conference Record of the the 2002 IEEE International Symposium on Electrical Insulation (Cat. No.02CH37316)","volume":"5 1","pages":"449-452"},"PeriodicalIF":0.0,"publicationDate":"2002-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80960910","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 : 2002-04-07DOI: 10.1109/ELINSL.2002.995928
A. Valdman
To specialists, insulation coordination is well-known. The insulation level of the overhead line or the substation is determined from a distribution curve of the flashover voltage of a single insulator in the region of extremely low probabilities (flashover voltage distribution-FOV). This probability of insulation flashover, the minimum acceptable in operation, (Pperm) corresponds to a certain voltage Uo which, as a matter of fact, is the insulation level (BIL) of the line of substation as a whole. From here it follows that the possible difference in the form of the flashover distribution curve in the region of very small probabilities by calculation (a part of a curve "C", instead of a part "B") can result in a serious mistake in the design (coordination) of the insulation level of lines and substations. The author of this paper carried out research into the so-called anomalous characteristics of HV insulators of simple profiles (1998). Their main characteristics essentially, and sometimes extremely, differ from well-known characteristics in configuration, and quantitative parameters. The existence of the mentioned anomalies in common insulators with sheds (porcelain, glass and so on) also was demonstrated by the author. These anomalies are usually located in the region of probabilities considerably below achievable experimental probabilities. The paper continues the work of the previous publication and reports: the mechanism of occurrence of anomalous discharges in a compressed form; questions of insulation coordination in view of the observed effect; and new ways of designing high-voltage insulation of increased reliability.
{"title":"The new approach to designing HV insulation with high reliability for overhead lines and substations","authors":"A. Valdman","doi":"10.1109/ELINSL.2002.995928","DOIUrl":"https://doi.org/10.1109/ELINSL.2002.995928","url":null,"abstract":"To specialists, insulation coordination is well-known. The insulation level of the overhead line or the substation is determined from a distribution curve of the flashover voltage of a single insulator in the region of extremely low probabilities (flashover voltage distribution-FOV). This probability of insulation flashover, the minimum acceptable in operation, (Pperm) corresponds to a certain voltage Uo which, as a matter of fact, is the insulation level (BIL) of the line of substation as a whole. From here it follows that the possible difference in the form of the flashover distribution curve in the region of very small probabilities by calculation (a part of a curve \"C\", instead of a part \"B\") can result in a serious mistake in the design (coordination) of the insulation level of lines and substations. The author of this paper carried out research into the so-called anomalous characteristics of HV insulators of simple profiles (1998). Their main characteristics essentially, and sometimes extremely, differ from well-known characteristics in configuration, and quantitative parameters. The existence of the mentioned anomalies in common insulators with sheds (porcelain, glass and so on) also was demonstrated by the author. These anomalies are usually located in the region of probabilities considerably below achievable experimental probabilities. The paper continues the work of the previous publication and reports: the mechanism of occurrence of anomalous discharges in a compressed form; questions of insulation coordination in view of the observed effect; and new ways of designing high-voltage insulation of increased reliability.","PeriodicalId":10532,"journal":{"name":"Conference Record of the the 2002 IEEE International Symposium on Electrical Insulation (Cat. No.02CH37316)","volume":"151 1","pages":"264-270"},"PeriodicalIF":0.0,"publicationDate":"2002-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77525089","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 : 2002-04-07DOI: 10.1109/ELINSL.2002.995890
Chunxi Zhang, Shouguo Sheng, Xiaochun Chi, Jia-xiang Yang
In this paper, some factors affecting the measurement of the characteristics of XLPE insulated cable are investigated. As many techniques have been developed for insulation assessment in the laboratory, it is important to understand some factors in hot-line measurement differing from those in the laboratory. Based on the purpose of using easily in hot-line condition, a model of a latent fault signal measurement system was constructed. In the experiment, the power voltage, the length of cable, and the resistance between metal shield of cable and ground are considered as important factors affecting measurement results. Through some investigations in laboratory, the influences of power voltage, length of cable, ground resistance on the fault signal are clearly shown. According to measurement results, some strategies for diagnosis and evaluation can be used to process the fault signals into standard values-and then the insulation state of cable can be predicted.
{"title":"Some factors affecting the diagnosis of latent fault in XLPE cable insulation","authors":"Chunxi Zhang, Shouguo Sheng, Xiaochun Chi, Jia-xiang Yang","doi":"10.1109/ELINSL.2002.995890","DOIUrl":"https://doi.org/10.1109/ELINSL.2002.995890","url":null,"abstract":"In this paper, some factors affecting the measurement of the characteristics of XLPE insulated cable are investigated. As many techniques have been developed for insulation assessment in the laboratory, it is important to understand some factors in hot-line measurement differing from those in the laboratory. Based on the purpose of using easily in hot-line condition, a model of a latent fault signal measurement system was constructed. In the experiment, the power voltage, the length of cable, and the resistance between metal shield of cable and ground are considered as important factors affecting measurement results. Through some investigations in laboratory, the influences of power voltage, length of cable, ground resistance on the fault signal are clearly shown. According to measurement results, some strategies for diagnosis and evaluation can be used to process the fault signals into standard values-and then the insulation state of cable can be predicted.","PeriodicalId":10532,"journal":{"name":"Conference Record of the the 2002 IEEE International Symposium on Electrical Insulation (Cat. No.02CH37316)","volume":"38 1","pages":"100-103"},"PeriodicalIF":0.0,"publicationDate":"2002-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87218171","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 : 2002-04-07DOI: 10.1109/ELINSL.2002.995869
Yu Ming, S. Birlasekaran
Study of partial discharge (PD) behavior in electrical apparatus is important to know the degradation of insulating materials. The characterization of these pulses in the form of cavity discharge, corona discharge and surface discharge is important to identify the faulty location and to quantify the degree of deterioration. A laboratory study is done by making the models of these discharges. Both time and frequency domain measurements were done. The necessary interfacing electronics to minimize the 50 Hz and harmonics from the laboratory power supply is developed. Wavelet signal processing is used to recover the PD signal by eliminating the noises of many natures. Furthermore, different wavelet filters and windowing techniques are used to improve the efficiency of PD signal extraction. With the fabricated models to create only a type of discharge, the statistical characteristic of that type of discharge is identified. A significant number of indicators are got to identify the type of discharge.
{"title":"Characterization of partial discharge signals using wavelet and statistical techniques","authors":"Yu Ming, S. Birlasekaran","doi":"10.1109/ELINSL.2002.995869","DOIUrl":"https://doi.org/10.1109/ELINSL.2002.995869","url":null,"abstract":"Study of partial discharge (PD) behavior in electrical apparatus is important to know the degradation of insulating materials. The characterization of these pulses in the form of cavity discharge, corona discharge and surface discharge is important to identify the faulty location and to quantify the degree of deterioration. A laboratory study is done by making the models of these discharges. Both time and frequency domain measurements were done. The necessary interfacing electronics to minimize the 50 Hz and harmonics from the laboratory power supply is developed. Wavelet signal processing is used to recover the PD signal by eliminating the noises of many natures. Furthermore, different wavelet filters and windowing techniques are used to improve the efficiency of PD signal extraction. With the fabricated models to create only a type of discharge, the statistical characteristic of that type of discharge is identified. A significant number of indicators are got to identify the type of discharge.","PeriodicalId":10532,"journal":{"name":"Conference Record of the the 2002 IEEE International Symposium on Electrical Insulation (Cat. No.02CH37316)","volume":"30 1","pages":"9-13"},"PeriodicalIF":0.0,"publicationDate":"2002-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90566768","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 : 2002-04-07DOI: 10.1109/ELINSL.2002.995990
M. Paede, W. Pfeiffer
In the last decade, there has been an increasing interest in partial discharges (PD) at high frequency stress on insulation systems. At present, high-frequency working voltages exceeding 100 kHz are often used in low-voltage equipment and the frequencies are still increasing. Due to the switching in the power supplies, the voltage shapes are usually nonsinusoidal. The aspects of these nonsinusoidal voltages regarding the electrical stress are discussed by harmonic analysis. The difficulties of performing PD measurements at impulse voltages are shown and the alternative of measurements using sinusoidal voltages is discussed. Regarding the nonsinusoidal voltages and the increasing operating frequencies, test frequencies in the MHz range are of future interest. The requirements on the test equipment for these high-frequency tests are discussed. Finally, this paper describes how PD tests can be performed with respect to high-frequency stress and some examples are shown.
{"title":"About the PD-testing of insulation systems with high-frequency voltages","authors":"M. Paede, W. Pfeiffer","doi":"10.1109/ELINSL.2002.995990","DOIUrl":"https://doi.org/10.1109/ELINSL.2002.995990","url":null,"abstract":"In the last decade, there has been an increasing interest in partial discharges (PD) at high frequency stress on insulation systems. At present, high-frequency working voltages exceeding 100 kHz are often used in low-voltage equipment and the frequencies are still increasing. Due to the switching in the power supplies, the voltage shapes are usually nonsinusoidal. The aspects of these nonsinusoidal voltages regarding the electrical stress are discussed by harmonic analysis. The difficulties of performing PD measurements at impulse voltages are shown and the alternative of measurements using sinusoidal voltages is discussed. Regarding the nonsinusoidal voltages and the increasing operating frequencies, test frequencies in the MHz range are of future interest. The requirements on the test equipment for these high-frequency tests are discussed. Finally, this paper describes how PD tests can be performed with respect to high-frequency stress and some examples are shown.","PeriodicalId":10532,"journal":{"name":"Conference Record of the the 2002 IEEE International Symposium on Electrical Insulation (Cat. No.02CH37316)","volume":"13 1","pages":"531-538"},"PeriodicalIF":0.0,"publicationDate":"2002-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89083529","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 : 2002-04-07DOI: 10.1109/ELINSL.2002.995958
J. G. Hubrig
The successful insertion of an epoxy formulation into an advanced dielectric insulation system may be characterized as an expression of a complex, interactive set of properties and processing parameters; from raw material selection to design configuration. This expression represents the electrical apparatus as a set of structure and component design configurations ordered by assembly methodology to meet a given set of operating life cycle performance specifications. When reduced to their lowest common denomination; the electrical apparatus structure and component design configurations become an expression of interdependent material generic properties; while assembly methodology and operating life cycle performance specifications are reduced to an expression of progressive sets of ambient exposures. This programmatic approach redefines electrical apparatus into a weighted matrix expression of: (1) design configuration constituent material generic properties and their requisite handling parameters; (2) design configuration requisite assembly processing parameters; (3) operating life cycle performance specifications; (4) known constituent material generic property degradation profiles; and (5) electrical apparatus root cause failure history. This matrix expression represents an alternative methodology that will facilitate the timely insertion of new materials into advanced systems and will predict the in-service operating performance of an electrical apparatus while greatly reducing the expense and reliance on full-scale modeling and prototype development.
{"title":"An alternative methodology for thermoset resin dielectric insulation material insertion and electrical apparatus life cycle predictability","authors":"J. G. Hubrig","doi":"10.1109/ELINSL.2002.995958","DOIUrl":"https://doi.org/10.1109/ELINSL.2002.995958","url":null,"abstract":"The successful insertion of an epoxy formulation into an advanced dielectric insulation system may be characterized as an expression of a complex, interactive set of properties and processing parameters; from raw material selection to design configuration. This expression represents the electrical apparatus as a set of structure and component design configurations ordered by assembly methodology to meet a given set of operating life cycle performance specifications. When reduced to their lowest common denomination; the electrical apparatus structure and component design configurations become an expression of interdependent material generic properties; while assembly methodology and operating life cycle performance specifications are reduced to an expression of progressive sets of ambient exposures. This programmatic approach redefines electrical apparatus into a weighted matrix expression of: (1) design configuration constituent material generic properties and their requisite handling parameters; (2) design configuration requisite assembly processing parameters; (3) operating life cycle performance specifications; (4) known constituent material generic property degradation profiles; and (5) electrical apparatus root cause failure history. This matrix expression represents an alternative methodology that will facilitate the timely insertion of new materials into advanced systems and will predict the in-service operating performance of an electrical apparatus while greatly reducing the expense and reliance on full-scale modeling and prototype development.","PeriodicalId":10532,"journal":{"name":"Conference Record of the the 2002 IEEE International Symposium on Electrical Insulation (Cat. No.02CH37316)","volume":"13 1","pages":"391-394"},"PeriodicalIF":0.0,"publicationDate":"2002-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87187480","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 : 2002-04-07DOI: 10.1109/ELINSL.2002.995980
D. Yi, Sang-Bae Park, Soo-Won Lim
We have developed the global assessment system for medium voltage power cable systems. Our purpose of diagnostic activity is the economic discrimination and maintenance of bad cables, which is likely to cause cable system failure. We have adopted the aging time constant method to construct the power cable assessment system for our diagnostic purpose. From the field application test results, we have concluded that our system is successful and convenient for the discrimination and maintenance of the bad cables economically.
{"title":"A new cable diagnosis system development for MV power cables","authors":"D. Yi, Sang-Bae Park, Soo-Won Lim","doi":"10.1109/ELINSL.2002.995980","DOIUrl":"https://doi.org/10.1109/ELINSL.2002.995980","url":null,"abstract":"We have developed the global assessment system for medium voltage power cable systems. Our purpose of diagnostic activity is the economic discrimination and maintenance of bad cables, which is likely to cause cable system failure. We have adopted the aging time constant method to construct the power cable assessment system for our diagnostic purpose. From the field application test results, we have concluded that our system is successful and convenient for the discrimination and maintenance of the bad cables economically.","PeriodicalId":10532,"journal":{"name":"Conference Record of the the 2002 IEEE International Symposium on Electrical Insulation (Cat. No.02CH37316)","volume":"26 1","pages":"485-487"},"PeriodicalIF":0.0,"publicationDate":"2002-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75506329","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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