Abstract
In this paper a comparison between two methods for the calculation of the hot spot temperature of a power transformer is presented. The first method is proposed by C57.91 IEEE Standard which is based on daily averages and exponential equations; on the other hand, the second method is based in differential equations and hourly measurements. To compare these methods, the ageing of a currently operating power transformer has been estimated. A comparison of the results of degradation using actual values and a hypothetical overload were performed. A brief description of each method, aging results, time calculation and analysis of the results is presented.
Original language | English |
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Article number | 7387233 |
Pages (from-to) | 3287-3293 |
Number of pages | 7 |
Journal | Ieee Latin America Transactions |
Volume | 13 |
Issue number | 10 |
DOIs | |
State | Published - Oct 2015 |
Keywords
- ageing
- end of life assessment
- paper ageing
- power transformer
- solid insulation
- thermal ageing
- thermal degradation