Determination of Humidity in Oil Impregnated Cellulose Insulation Systems

Robert Eberhardt; Hans Michael Muhr; Christof Sumereder

Determination of Humidity in Oil Impregnated Cellulose Insulation Systems

Robert Eberhardt, Hans Michael Muhr, Christof Sumereder

Institut für Hochspannungstechnik und Systemmanagement (4330)

Publikation: Beitrag in Buch/Bericht/Konferenzband › Beitrag in einem Konferenzband › Begutachtung

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

Originalsprache	englisch
Titel	International Colloquium Transformer Research and Asset Management
Seiten	29-29
Publikationsstatus	Veröffentlicht - 2009
Veranstaltung	2009 International Colloquium Transformer Research and Asset Management - Cavtat, Kroatien Dauer: 12 Nov. 2009 → 14 Nov. 2009

Konferenz

Konferenz	2009 International Colloquium Transformer Research and Asset Management
Land/Gebiet	Kroatien
Ort	Cavtat
Zeitraum	12/11/09 → 14/11/09

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TLM-10.pdfAkzeptiertes Autorenmanuskript, 385 KB

Untersuchungen an festen und flüssigen Isoliermaterialien
Sumereder, C. (Teilnehmer (Co-Investigator)) & Woschitz, R. (Teilnehmer (Co-Investigator))
1/01/95 → 31/07/15
Projekt: Arbeitsgebiet
Hochspannungsisolierstoffe und -systeme
Muhr, H. M. (Teilnehmer (Co-Investigator)), Woschitz, R. (Teilnehmer (Co-Investigator)) & Sumereder, C. (Teilnehmer (Co-Investigator))
1/01/95 → 31/12/24
Projekt: Arbeitsgebiet
Instandhaltung, Diagnose und Bewertung von Hochspannungsgeräten
Sumereder, C. (Teilnehmer (Co-Investigator)) & Muhr, H. M. (Teilnehmer (Co-Investigator))
1/01/95 → 31/12/24
Projekt: Arbeitsgebiet

Dieses zitieren

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title = "Determination of Humidity in Oil Impregnated Cellulose Insulation Systems",

abstract = "The lifetime of oil impregnated insulation systems is strongly dependant to the mechanicalstrength 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",

author = "Robert Eberhardt and Muhr, {Hans Michael} and Christof Sumereder",

year = "2009",

language = "English",

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AU - Eberhardt, Robert

AU - Muhr, Hans Michael

AU - Sumereder, Christof

PY - 2009

Y1 - 2009

N2 - The lifetime of oil impregnated insulation systems is strongly dependant to the mechanicalstrength 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

AB - The lifetime of oil impregnated insulation systems is strongly dependant to the mechanicalstrength 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

M3 - Conference paper

SP - 29

EP - 29

BT - International Colloquium Transformer Research and Asset Management

T2 - 2009 International Colloquium Transformer Research and Asset Management

Y2 - 12 November 2009 through 14 November 2009

ER -

Determination of Humidity in Oil Impregnated Cellulose Insulation Systems

Abstract

Konferenz

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Projekte

Untersuchungen an festen und flüssigen Isoliermaterialien

Hochspannungsisolierstoffe und -systeme

Instandhaltung, Diagnose und Bewertung von Hochspannungsgeräten

Dieses zitieren