More accurate breakdown voltage estimation for the new step-up test method in the Weibull model

Author

Hirose, Hideo

Author_Institution

Dept. of Syst. Innovation and Informatics, Kyushu Inst. of Technol., Fukuoka, Japan

Volume

11

Issue

3

fYear

2004

fDate

6/1/2004 12:00:00 AM

Firstpage

418

Lastpage

423

Abstract

The estimation problems for the conventional step-up method (the observed breakdown voltages are not given at all) and the new step-up method (some of the observed breakdown voltages are given) are analyzed when the underlying probability distribution is assumed to be a Weibull model. This paper is a consecutive research of the case that the underlying probability distribution is assumed to be a normal model. Similarly to the normal model, the new step-up test method, in the Weibull model, also has advantages compared to the conventional method: (1) the confidence intervals of the estimates become smaller and (2) the estimates can be obtained with higher probability. The bias observed when sample size is small can be reduced by using the bootstrap method.

Keywords

Weibull distribution; electric breakdown; estimation theory; impulse testing; insulation testing; normal distribution; Weibull model; bootstrap method; breakdown voltage estimation; electrical insulation; estimation confidence intervals; normal model; probability distribution; step-up test method; Breakdown voltage; Dielectrics and electrical insulation; Electric breakdown; Impulse testing; Insulation testing; Probability distribution; Stress; System testing; Technological innovation; Weibull distribution;

fLanguage

English

Journal_Title

Dielectrics and Electrical Insulation, IEEE Transactions on

Publisher

ieee

ISSN

1070-9878

Type

jour

DOI

10.1109/TDEI.2004.1306720

Filename

1306720