A review of temperature prediction methods for oil-immersed transformers

Y Guo, Y Chang, B Lu - Measurement, 2024 - Elsevier
Oil-immersed transformer is an important equipment of the power system with superior
insulation performance and good cooling effect, so it is widely used in the power system …

Numerical study on temperature rise and mechanical properties of winding in oil-immersed transformer

X Jia, M Lin, S Su, Q Wang, J Yang - Energy, 2022 - Elsevier
In the present paper, the electromagnetic-fluid-thermal-mechanical stress coupling process
in an oil-immersed transformer is numerical studied with finite element method. The …

HST calculation of a 10 kV oil‐immersed transformer with 3D coupled‐field method

J Ruan, Y Deng, D Huang, C Duan… - IET electric power …, 2020 - Wiley Online Library
Transformer winding hot‐spot temperature (HST) is one of the important factors affecting
transformer oil–paper insulation deterioration. This study presents a three‐dimensional …

A novel rule-based evolving fuzzy system applied to the thermal modeling of power transformers

KSTR Alves, EP de Aguiar - Applied Soft Computing, 2021 - Elsevier
Big Data advancements motivate researchers to develop and improve intelligent models to
deal efficiently and effectively with data. In this scenario, time series forecasting obtains even …

[HTML][HTML] Enhanced thermal modeling of three-phase dry-type transformers

JP Américo, JV Leite, CF Mazzola - Case Studies in Thermal Engineering, 2024 - Elsevier
This work presents an enhanced thermal modeling for dry-type three-phase transformers,
addressing the heat exchange mechanisms through conduction, radiation, and convection …

Fast and accurate analytical thermal modeling for planar PCB magnetic components

LC Ordonez, AD Exposito, PA Cervera… - … on Power Electronics, 2023 - ieeexplore.ieee.org
The exploitation of PCB integrated magnetic components in the high power field brings new
challenges due to the compactness of the design and the poor thermal performance of …

Thermal analysis and derating of a power transformer with harmonic loads

M Mikhak‐Beyranvand, J Faiz… - IET Generation …, 2020 - Wiley Online Library
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 …

Thermal analysis of power transformer using an improved dynamic thermal equivalent circuit model

M Mikhak-Beyranvand, J Faiz… - … Power Components and …, 2019 - Taylor & Francis
To insure the health of power transformers insulation, its heat distribution in different
operating conditions must be determined. In extended thermal equivalent circuits (TECs) …

Power transformer oil–paper insulation degradation modelling and prediction method based on functional principal component analysis

Y Qu, H Zhao, S Zhao, L Ma, Z Mi - IET science, measurement & …, 2022 - Wiley Online Library
This study is for the case where the available data of power transformer oil–paper insulation
is limited to a small amount furfural data, to solve the problems in oil–paper insulation …

[HTML][HTML] Modeling of the winding hot-spot temperature in power transformers: Case study of the low-loaded fleet

M Kunicki, S Borucki, A Cichoń, J Frymus - Energies, 2019 - mdpi.com
A proposal of the dynamic thermal rating (DTR) applied and optimized for low-loaded power
transformers equipped with on-line hot-spot (HS) measuring systems is presented in the …