Failure analysis of EHV transformers

descriptionPublicationkeyboard_double_arrow_right Article 01 Apr 1988Publisher:Institute of Electrical and Electronics Engineers (IEEE)Journal:IEEE Transactions on Power Delivery, volume 3, pages 672-683 (issn: 0885-8977,

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Authors: V.I. Kogan; J.A. Fleeman; J.H. Provanzana; C.H. Shih;

doi: 10.1109/61.4306

Failure analysis of EHV transformers

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Abstract

Failure activity of different samples of AEP extra high voltage (EHV) transformers is analyzed using estimations of the time-dependent failure rate. This analysis can be applied to investigation of the failure mechanism of 765 kV transformers. A novel method for the probabilistic estimation of the number of future failures is introduced. Results are compared with those of traditional computations of the number of future failures conducted using different average failure-rate approaches. >

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American Electric Power
United States

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