Results 261 to 270 of about 5,815,291 (292)

A survey of developments in insulation monitoring of power transformers

Conference Record of the 2000 IEEE International Symposium on Electrical Insulation (Cat. No.00CH37075), 2002
The aging infrastructure of large GSU and EHV power transformers built in the '60s and '70s poses a serious strategic issue for users worldwide. Catastrophic failures are escalating both in number and cost including environmental impacts. Extension of the useful life of power transformers is the single most important strategy for extending the life of ...
B.H. Ward, S. Lindgren
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Modelling the ageing of cellulose insulation in power transformers

3rd IEE International Conference on Reliability of Transmission and Distribution Networks (RTDN 2005), 2005
Ageing degradation of cellulose insulation in power transformers increases with operating cycles in a cumulative manner and may lead to the failure of power transformers. In this study a cumulative degradation model for the ageing of cellulose insulation is proposed.
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Insulation liquids in power transformers

2019
Insulating liquids in power transformers have two important functions: they exchange heat between windings and cooling parts (radiators) and they serve as a dielectric separator between transformer electrodes (LV and HV windings, windings and the ground etc.).
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Drying and oil impregnation of power transformer insulation

1965 Sixth Electrical Insulation Conference, 1965
The processing procedure described above has already resulted in several important benefits of interest to both the manufacturers and the users of power transformers: 1. Insulation structures which formerly would have been impossible or impractical to properly dry and impregnate can now be easily processed in a relatively short time.
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Diffusion of moisture through power-transformer insulation

Proceedings of the Institution of Electrical Engineers, 1978
Moisture in power-transformer insulation has long been recognised as a major cause for the deterioration of the dielectric and for shortening the `service-lives? of units. Engineers have, therefore, striven to find a method that will accurately predict the degradation of the insulation in service conditions.
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Drying of power-transformer insulation

IEE Proceedings C Generation, Transmission and Distribution, 1982
A.S. Asem, A.F. Howe
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Insulating Resistance As Degradation Criterium For Power Transformers Insulation

Proceedings of the 6th International Conference on Optimization of Electrical and Electronic Equipments, 2005
A. Munteanu, T.-E. Manea
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Enhancement of the Technique for Calculation and Assessment of the Condition of Major Insulation of Power Transformers

Energies, 2022
Konstantin Suslov, Olga Melnikova
exaly  

Power Transformer Insulation – History, Technology and Design

IEEE Transactions on Dielectrics and Electrical Insulation, 2012
Christoph Krause
exaly  

High voltage power transformer insulation

Students Quarterly Journal, 1967
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