[HTML][HTML] Review of the performance of high-voltage composite insulators

MZ Saleem, M Akbar - Polymers, 2022 - mdpi.com
In the present literature survey, we focused on the performance of polymeric materials
encompassing silicone rubber (SiR), ethylene propylene diene monomer (EPDM) and …

[HTML][HTML] Fault prediction based on leakage current in contaminated insulators using enhanced time series forecasting models

NF Sopelsa Neto, SF Stefenon, LH Meyer, RG Ovejero… - Sensors, 2022 - mdpi.com
To improve the monitoring of the electrical power grid, it is necessary to evaluate the
influence of contamination in relation to leakage current and its progression to a disruptive …

[HTML][HTML] Ensemble learning methods using the Hodrick–Prescott filter for fault forecasting in insulators of the electrical power grids

LO Seman, SF Stefenon, VC Mariani… - International Journal of …, 2023 - Elsevier
Electrical power grid insulators installed outdoors are exposed to environmental conditions,
such as the accumulation of contaminants on their surface. The contaminants increase the …

[HTML][HTML] Wavelet LSTM for fault forecasting in electrical power grids

NW Branco, MSM Cavalca, SF Stefenon, VRQ Leithardt - Sensors, 2022 - mdpi.com
An electric power distribution utility is responsible for providing energy to consumers in a
continuous and stable way. Failures in the electrical power system reduce the reliability …

Classification of distribution power grid structures using inception v3 deep neural network

SF Stefenon, KC Yow, A Nied, LH Meyer - Electrical Engineering, 2022 - Springer
To maintain the supply of electrical energy, it is necessary that failures in the distribution grid
are identified during inspections of the electrical power system before shutdowns occur. To …

Classification of insulators using neural network based on computer vision

SF Stefenon, MP Corso, A Nied… - IET Generation …, 2022 - Wiley Online Library
Insulators of the electrical power grid are usually installed outdoors, so they suffer from
environmental stresses, such as the presence of contamination. Contamination can increase …

Evaluation of visible contamination on power grid insulators using convolutional neural networks

MP Corso, SF Stefenon, G Singh, MV Matsuo… - Electrical …, 2023 - Springer
The contamination of insulators increases their surface conductivity, resulting in a higher
chance of shutdowns occurring. To measure contamination, equivalent salt deposit density …

Pollution flashover under different contamination profiles on high voltage insulator: Numerical and experiment investigation

AA Salem, R Abd-Rahman, W Rahiman… - IEEE …, 2021 - ieeexplore.ieee.org
This work aimed to study the influence of contamination profiles and humidity on flashover
electrical characteristics of polluted insulators. Firstly, the flashover tests on cap and pin …

Group method of data handling using Christiano–Fitzgerald random walk filter for insulator fault prediction

SF Stefenon, LO Seman, NF Sopelsa Neto, LH Meyer… - Sensors, 2023 - mdpi.com
Disruptive failures threaten the reliability of electric supply in power branches, often
indicated by the rise of leakage current in distribution insulators. This paper presents a …

[HTML][HTML] Contamination level monitoring techniques for high-voltage insulators: A review

L Maraaba, K Al-Soufi, T Ssennoga, AM Memon… - Energies, 2022 - mdpi.com
Insulators are considered one of the most significant parts of power systems which can affect
the overall performance of high-voltage (HV) transmission lines and substations. High …