Title
More Accurate Breakdown Voltage Estimation for the New Step-up Test Method

Authors
Hirose H.

Source
IEEE Trans., Dielectrics and Electrical Insulation, Vol.10, No.3, pp. 475-482 (2003.6)

Abstract
The step-up method is used to estimate the impulse breakdown voltages when the electrical insulation is not usable after it is broken. This paper analyses the reliability of the estimates of the underlying breakdown probability distribution in the step-up method, when (1) the observed breakdown voltage itself is available and (2) it is not available. The former case has many advantages compared to the latter case such that (i) the confidence intervals of the estimates become smaller and (ii) the estimates can be obtained with higher probability. Consequently, this paper recommends using the estimates of the underlying distribution for the breakdown voltages instead of the nominal breakdown voltages. Some illustrative examples are given.

Key Words
Impulse breakdown voltage, nominal breakdown voltage, step-up test method, optimal test, electrical insulation, normal distribution.

Citation

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Times Cited in Web of Science: 4

Times Cited in Scopus: 1

Times Cited in Google Scholar: 7

Cited in Books:

Inspec: 1

WoS: IEEJ TRANSACTIONS ON ELECTRICAL AND ELECTRONIC ENGINEERING Volume: 3 Issue: 6 Pages: 680-687 Published: NOV 2008; EUROPEAN JOURNAL OF OPERATIONAL RESEARCH 177 (1): 406-419 FEB 16 2007; IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION 11 (3): 418-423 JUN 2004