ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117)最新文献_第8页

Material morphology and energy barriers to electrical ageing 材料形态和电老化的能量障碍

ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117) Pub Date : 2001-06-25 DOI: 10.1109/ICSD.2001.955615

E. Cooper, J. Fothergill, L. Dissado, R. N. Hampton

引用次数: 4

Monitoring and diagnostic systems for dry type transformers 干式变压器的监测和诊断系统

ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117) Pub Date : 2001-06-25 DOI: 10.1109/ICSD.2001.955628

E. Gockenbach, P. Werle, H. Borsi

{"title":"Monitoring and diagnostic systems for dry type transformers","authors":"E. Gockenbach, P. Werle, H. Borsi","doi":"10.1109/ICSD.2001.955628","DOIUrl":"https://doi.org/10.1109/ICSD.2001.955628","url":null,"abstract":"For the monitoring and protection of dry type transformers a cost-effective and efficient system has been developed, which monitors online local overheating using a fibre optic sensor technology. The system allows to prevent secondary failures and cost. An offline analysis of the transfer function can give indications on interturn short circuits. The sensitivity is in the range of a few percent of the whole number of windings. This will reduce the maintenance and repair costs. The detection and localisation of partial discharges can be easily carried out with a number of sensors fixed on the surface of the dry type transformer. The measurement of the absolute value of the signals as well as the difference between two adjacent sensor leads to a detection sensitivity in the range of 20 pC even under noisy condition on site which is sufficient for this type of transformers. The introduced system is well tried and installed on different dry type transformers in Germany for more than one and a half year with the intention to increase the reliability and life expectancy of dry type transformers leading to an ensured power distribution.","PeriodicalId":239585,"journal":{"name":"ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125540005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 14

Effect of electrode on charge transfer phenomena of charge transport material 电极对电荷输运材料电荷转移现象的影响

ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117) Pub Date : 2001-06-25 DOI: 10.1109/ICSD.2001.955517

Y. Hashimoto, K. Suzuki, H. Matsuda, M. Akagi, T. Sakakibara, M. Hamagaki, S. Maeta

引用次数: 0

The influence of density-difference on breakdown and high-field current of blended low-density polyethylene 密度差对混炼低密度聚乙烯击穿及高场电流的影响

ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117) Pub Date : 2001-06-25 DOI: 10.1109/ICSD.2001.955546

D. Cho, T. Mori, T. Mizutani, M. Ishioka

引用次数: 0

Development of smart diagnostic algorithm for 800 kV gas insulated switchgear 800kv气体绝缘开关柜智能诊断算法的开发

ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117) Pub Date : 2001-06-25 DOI: 10.1109/ICSD.2001.955653

J.B. Kim, M.S. Kim, T.W. Kim, S. Youn, W. Song, W. Park

引用次数: 0

The effect of polydispersity on the dielectric properties of composite materials 多分散性对复合材料介电性能的影响

ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117) Pub Date : 2001-06-25 DOI: 10.1109/ICSD.2001.955695

A. Spanoudaki, R. Pelster

引用次数: 0

Relative permittivity and conductivity of water-treed region in cross-linked polyethylene 交联聚乙烯水树区的相对介电常数和电导率

ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117) Pub Date : 2001-06-25 DOI: 10.1109/ICSD.2001.955575

S. Nakamura, J. Kawai

引用次数: 6

Conduction characterization of polymer films using the alternate square wave method 用交替方波方法表征聚合物薄膜的传导特性

ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117) Pub Date : 2001-06-25 DOI: 10.1109/ICSD.2001.955637

C. Escribe-filippini, R. Tobazdon, J. Filippini

引用次数: 3

Ageing studies on paper and oil to assess the condition of solid insulation used in power transformers 用纸张和油的老化研究来评估电力变压器用固体绝缘的状况

ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117) Pub Date : 2001-06-25 DOI: 10.1109/ICSD.2001.955515

P. Thomas, A. K. Shukla, Raghuveer

引用次数: 15

Transformer insulation condition monitoring using artificial neural network 变压器绝缘状态的人工神经网络监测

ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117) Pub Date : 2001-06-25 DOI: 10.1109/ICSD.2001.955630

E. Husain, M. M. Mohsin, Satyaprakash

{"title":"Transformer insulation condition monitoring using artificial neural network","authors":"E. Husain, M. M. Mohsin, Satyaprakash","doi":"10.1109/ICSD.2001.955630","DOIUrl":"https://doi.org/10.1109/ICSD.2001.955630","url":null,"abstract":"Partial Discharge (PD) is the most hazardous phenomena that deteriorates the insulation life of an electrical device in a covert way (and finally with an overt puncture or flashover) in an otherwise healthy insulation. Mostly the conventional EHV and UHV transformers used in the present times employ the oil impregnated paper/pressboard insulation. Recently, a radically new approach to the PD pulse-pattern analysis in oil impregnated pressboard insulation has been established in a relevant study, where an experimental setup was prepared to simulate the commonly encountered wedge shaped oil gaps between the edges of rounded conductors and pressboard spacers inside transformer. The observed PD pulse patterns at different stress levels are classified into five distinct categories with each one having some relevance to the deteriorating condition of insulation health. The interesting results revealed by this study are serving as the underlying principle to carry out an ANN based insulation condition monitoring system. A backpropagation learning model multi-layer perceptron (MLP) paradigm is characterised, which is used as a tool to further automate and achieve a fast classification of an unknown PD pulse pattern to a particular class (without visual or statistical interpretation), thus enabling addressing the insulation health condition or imminent breakdown probabilities. Diverse structures of MLP were implemented using single or double layers with different number of processing elements in each layer and different learning coefficients. The performance is studied and the intricacies involved are addressed in the light of achieving an optimal structural configuration.","PeriodicalId":239585,"journal":{"name":"ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128433791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4