Preview

Dependability

Advanced search

PROBABILISTIC ASPECTS OF RELIABILITY OF ELECTRICAL INSULATION

https://doi.org/10.21683/1729-2646-2015-0-3-42-47

Abstract

The mathematical model of electrical insulation failure is proposed. The model is based on the superposition of uniform and exponential probability distributions. Relation for time dependence of the insulation failure rate is obtained. Application of this relation provides correct analytical description of insulation reliability on a long time interval.

About the Authors

Ya. O. Shablovsky
Sukhoi Gomel State Technical University
Belarus
Candidate of physical-mathematical sciences, Assistant Professor of Chair of Theoretical Basis of Electric Engineering


V. V. Kiselevich
Sukhoi Gomel State Technical University
Belarus
Assistant of Chair of Industrial Heat Power and Ecology


References

1. Gnedenko B.V. Mathematical methods in the theory of reliability / B.V. Gnedenko, Yu.K. Belyaev, A.D. Solovyev. – Moscow: Nauka, 1965. – Pp. 102–103.

2. Murthy D.N.P. Weibull models / D.N.P. Murthy, M. Xie, R. Jiang. – Hoboken, New Jersey: John Wiley & Sons, Inc., 2004. – P. 9–10.

3. Fokin Yu.A. Estimation of power supply systems reliability / Yu.A. Fokin, V.A. Tufanov. – Moscow: Energoizdat, 1981. – P. 224

4. Ushakov I.A. On the importance of adequate mathematical models for engineering analysis of reliability / I.A. Ushakov // Dependability. – 2011. – No.3 (38). – Pp. 2-14.

5. Ushakov I.A. Course of the theory of system reliability / I.A. Ushakov. – Moscow: Drofa, 2008. – P. 239

6. Vadzinsky R.N. Guide for probability distributions / R.N. Vadzinsky. – Saint-Petersburg: Nauka, 2001. – P. 295

7. Prokhorov A.V. Criteria of reliability of electrical equipment insulation. Selection of optimum variant of insulation system / A.V. Prokhorov // Dependability. – 2012. – No 3 (42). – Pp. 80-88.

8. Korzhov A.V. Method for estimating the importance of impact of designing and operational factors on the life time of insulation of 6 (10) kV power cables of urban electrical networks / A.V. Korzhov // South-Ural State University Newsletter. “Energy” series. – 2014. – V. 14, No. 1. – Pp. 31–34.

9. Yurchenko E.Yu. Statistical parameters of reliability of 6 (10) kV cable line elements / E.Yu. Yurchenko, A.V. Korzhov // Modern equipment and technology: Materials of XIV International Scientific and Practical Conference of Students, Postgraduate students and Young Researchers, Tomsk, 24–28 March, 2008 / Tomsk Politechnical University. – Tomsk, 2008. – V. 1. – Pp. 123–125.


Review

For citations:


Shablovsky Ya.O., Kiselevich V.V. PROBABILISTIC ASPECTS OF RELIABILITY OF ELECTRICAL INSULATION. Dependability. 2015;(3):42-47. https://doi.org/10.21683/1729-2646-2015-0-3-42-47

Views: 713


Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.


ISSN 1729-2646 (Print)
ISSN 2500-3909 (Online)