Publication result detail

Estimation of Reliability Characteristics of Power Oil Transformers

HAMMER, M.; ERTL, J.; JANDA, O.

Original Title

Estimation of Reliability Characteristics of Power Oil Transformers

English Title

Estimation of Reliability Characteristics of Power Oil Transformers

Type

Peer-reviewed article not indexed in WoS or Scopus

Original Abstract

At present days, the requirements on reliability analysis of power oil transformers are increasing in technical practice. Properly estimated reliability characteristics inform the user how to service machine, and such estimation also saves the users financial means. In the first part of this paper, the models for estimating reliability characteristics only from a set of times to failure of power oil transformers are described. Additionally, the Cox model, which enables for such machines to complete reliability analysis with diagnostic measurements, is introduced. In the last part of this paper, the Cox model is enhanced by factor analysis and moreover, the acquired results are compared with real behavior of tested power oil transformers during operation.

English abstract

At present days, the requirements on reliability analysis of power oil transformers are increasing in technical practice. Properly estimated reliability characteristics inform the user how to service machine, and such estimation also saves the users financial means. In the first part of this paper, the models for estimating reliability characteristics only from a set of times to failure of power oil transformers are described. Additionally, the Cox model, which enables for such machines to complete reliability analysis with diagnostic measurements, is introduced. In the last part of this paper, the Cox model is enhanced by factor analysis and moreover, the acquired results are compared with real behavior of tested power oil transformers during operation.

Keywords

Power Oil Transformer, Reliability Analysis, Cox Model, Factor Analysis

Key words in English

Power Oil Transformer, Reliability Analysis, Cox Model, Factor Analysis

Authors

HAMMER, M.; ERTL, J.; JANDA, O.

RIV year

2013

Released

30.06.2012

Publisher

Association for Engineering Mechanics

Location

Praha

ISBN

1802-1484

Periodical

Engineering Mechanics

Volume

19

Number

1

State

Czech Republic

Pages from

61

Pages to

73

Pages count

12

BibTex

@article{BUT93686,
  author="Miloš {Hammer} and Jakub {Ertl} and Ondřej {Janda}",
  title="Estimation of Reliability Characteristics of Power Oil Transformers",
  journal="Engineering Mechanics",
  year="2012",
  volume="19",
  number="1",
  pages="61--73",
  issn="1802-1484"
}