A review of health assessment techniques for distribution transformers in smart distribution grids

QT Tran, K Davies, L Roose, P Wiriyakitikun… - Applied Sciences, 2020 - mdpi.com
Due to the large number of distribution transformers in the distribution grid, the status of
distribution transformers plays an important role in ensuring the safe and reliable operation …

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 …

[HTML][HTML] Heat transfer modeling in a transformer using magneto-CFD analysis and GWO algorithm considering dynamic thermal model

MA Taghikhani - Results in Engineering, 2024 - Elsevier
One of the most expensive power system components is transformer. The correct use and
health of the transformer increase the reliability of the power network. The transformer health …

Hot-spot temperature forecasting of the instrument transformer using an artificial neural network

EA Juarez-Balderas, J Medina-Marin… - IEEE …, 2020 - ieeexplore.ieee.org
Cast resin medium voltage instrument transformer are highly used because of several
benefits over other type of transformers. Nevertheless, the high operating temperatures …

Global temperature sensing for an operating power transformer based on Raman scattering

Y Liu, X Li, H Li, X Fan - Sensors, 2020 - mdpi.com
Traditional monitoring methods cannot obtain the overall thermal information for power
transformers. To solve this problem, a distributed fiber optic sensor (DFOS) was creatively …

A temperature calculation method of oil immersed transformer considering delay effects and multiple environmental factors

R Ni, J Chen, C Yang, C Li, R Qiu, Z Liu, R Li… - Electric Power Systems …, 2022 - Elsevier
In the traditional transformer temperature calculation methods, the hot spot temperature
(HST) is obtained by calculating the oil temperature rise, winding temperature rise, and then …

An enhanced set-membership evolving participatory learning with kernel recursive least squares applied to thermal modeling of power transformers

KSTR Alves, M Hell, FLC Oliveira… - Electric Power Systems …, 2020 - Elsevier
A factor that directly impacts the lifespan of a power transformer is the hot-spot temperature,
and its monitoring is vital to prevent faults, reduce costs, keep the safety, and provide a …

Dynamic thermal model for power transformers

M Aslam, IU Haq, MS Rehan, A Basit, M Arif… - IEEE …, 2021 - ieeexplore.ieee.org
The prediction and determination of thermal response for the metallic parts is a very crucial
step in the design of power transformers. This paper presents a comparative analysis of …

Application study in the field of solutions for the monitoring distribution transformers of the overhead power grid

TR Chaves, MAI Martins, KA Martins, AF de Macedo… - Energies, 2021 - mdpi.com
This paper will present the development and application of overhead transformers of the
distribution grid, as well as the different technologies used for the gathering of electrical …

Numerical and experimental investigation of temperature distribution for oil-immersed transformer winding based on dimensionless least-squares and upwind finite …

G Liu, Z Zheng, X Ma, S Rong, W Wu, L Li - IEEE Access, 2019 - ieeexplore.ieee.org
To accurately analyze the temperature rising and locate the hot-spot of oil-immersed
transformer windings, a hybrid method based on the dimensionless least-squares finite …