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Your search keyword '"Mirzaie, Mohammad"' showing total 10 results
Start Over Author "Mirzaie, Mohammad" Publication Year Range Last 50 years Journal international journal of electrical power & energy systems
10 results on '"Mirzaie, Mohammad"'

10. Reliability model of the power transformer with ONAF cooling

Author

Sefidgaran, Mobin, Mirzaie, Mohammad, and Ebrahimzadeh, Ataollah

Subjects
*RELIABILITY in engineering, *MATHEMATICAL models, *ELECTRIC transformers, *MARKOV processes, *NUMERICAL analysis, *PERFORMANCE evaluation, *ELECTRIC power systems
Abstract

Abstract: This paper extracts a comprehensive reliability model for a transformer with oil natural air forced (ONAF) cooling system, which is the most common type of power transformers. The transformer is first classified into three subsystems and a reliability model is thereafter developed corresponding to each subsystem. Markov process and frequency/duration approaches are applied to analyze the extracted models and achieve their equalized representations. Merging subsystem models leads to the transformer entire reliability model consisting 17 states. The model is then reduced to an 11-state one which is more computationally manageable. Numerical analyses and sensitivity studies are conducted to demonstrate the performance of the proposed model and the results are thoroughly discussed. [Copyright &y& Elsevier]

Published
2012
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