Electric Properties of Vegetable Oil-Based Dielectric Liquid and Lifetime Estimation of the Oil-Paper Insulation

This paper presents the electric properties of a type of refined rapeseed oil, which can be used as transformer oil. The lifetime of the rapeseed oil-immersed paper is estimated by performing the step-stress test. Two Weibull parameters are used for statistical analysis of mean lifetime of oil-paper...

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Bibliographic Details
Published in2006 IEEE Conference on Electrical Insulation and Dielectric Phenomena pp. 680 - 683
Main Authors Caixin Sun, Jian Li, Xiaohu Li, Grzybowski, S.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2006
Subjects
Dielectric liquids
Dielectrics and electrical insulation
Inverse problems
Life estimation
Lifetime estimation
Mathematical model
Minerals
Oil insulation
Performance evaluation
Testing
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ISBN1424405467
9781424405466
ISSN0084-9162
DOI10.1109/CEIDP.2006.312023

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Summary:This paper presents the electric properties of a type of refined rapeseed oil, which can be used as transformer oil. The lifetime of the rapeseed oil-immersed paper is estimated by performing the step-stress test. Two Weibull parameters are used for statistical analysis of mean lifetime of oil-paper specimen. The mathematic models, the inverse power model, and the exponential model are used to fit test data and to calculate voltage endurance coefficients. As a contrast sample, the step-stress test is also performed on the mineral oil-immersed paper specimen. Analysis results show that the rapeseed oil-immersed paper has longer lifetime than mineral oil-immersed paper.
ISBN:1424405467
9781424405466
ISSN:0084-9162
DOI:10.1109/CEIDP.2006.312023