Infrared thermography (IRT) is a noninvasive technique that is drawing an increasing
attention in industry. The spectacular advancement in the features of the infrared cameras …

Transformer winding hot‐spot temperature (HST) is one of the important factors affecting
transformer oil–paper insulation deterioration. This study presents a three‐dimensional …

Power transformers are subject to winding and core deformations due to short circuit faults
and other environmental conditions. Majority of these faults are of progressive nature and …

Thermal conditions of power transformers in abnormal operating conditions such as
harmonic loads can be considered as a critical case. In this study, thermal analysis of …

In this work, the safe working limits of a 10 kVA dry-type transformer with H-class insulation
are determined by modeling its thermal response in different scenarios using numerical …

The safe operation of power transformers is related to their internal temperatures, which
increase due to the heat generated in their active part. The core is subjected to hysteresis …

High temperatures may damage power transformers. These problems leading to the high
temperature are more revealed under non‐rating operating conditions such as unbalanced …

Dry-type transformers are one of the most significant devices used in the conversion,
transmission and management process of the electricity. In practice, the electrical energy …

To insure the health of power transformers insulation, its heat distribution in different
operating conditions must be determined. In extended thermal equivalent circuits (TECs) …

The research on the temperature field of the transformer winding under dynamic variable
load is of great significance for ensuring the safe operation of power systems. This paper …