Projects per year
Abstract
The lifetime of oil impregnated insulation systems is strongly dependant to the mechanical
strength of the cellulose molecules. Water accelerates the degradation of the paper insulation. For this reason the humidity in oil and oil impregnated cellulose insulation systems of power transformers is an essential factor for accelerated aging. Therefore the determination of the water content in the liquid and solid insulation is of high interest for lifetime assessment. In this paper the focus is laid on the different methods for the determination of humidity. Chemical as well as physical and dielectric methods were compared and the results of laboratory tests and tests at distribution transformers were discussed
strength of the cellulose molecules. Water accelerates the degradation of the paper insulation. For this reason the humidity in oil and oil impregnated cellulose insulation systems of power transformers is an essential factor for accelerated aging. Therefore the determination of the water content in the liquid and solid insulation is of high interest for lifetime assessment. In this paper the focus is laid on the different methods for the determination of humidity. Chemical as well as physical and dielectric methods were compared and the results of laboratory tests and tests at distribution transformers were discussed
| Original language | English |
|---|---|
| Title of host publication | International Colloquium Transformer Research and Asset Management |
| Pages | 29-29 |
| Publication status | Published - 2009 |
| Event | 2009 International Colloquium Transformer Research and Asset Management - Cavtat, Croatia Duration: 12 Nov 2009 → 14 Nov 2009 |
Conference
| Conference | 2009 International Colloquium Transformer Research and Asset Management |
|---|---|
| Country/Territory | Croatia |
| City | Cavtat |
| Period | 12/11/09 → 14/11/09 |
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High-Voltage Insulating Materials and Systems
Muhr, H. M., Woschitz, R. & Sumereder, C.
1/01/95 → 31/12/24
Project: Research area
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Maintenance, Diagnostics and Evaluation of High-Voltage Equipments
1/01/95 → 31/12/24
Project: Research area
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