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 …

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 …

Classification of Contaminated Insulators Using k-Nearest Neighbors Based on Computer Vision

MP Corso, FL Perez, SF Stefenon, KC Yow… - Computers, 2021 - mdpi.com
Contamination on insulators may increase the surface conductivity of the insulator, and as a
consequence, electrical discharges occur more frequently, which can lead to interruptions in …

Analysis of the ultrasonic signal in polymeric contaminated insulators through ensemble learning methods

SF Stefenon, R Bruns, A Sartori, LH Meyer… - IEEE …, 2022 - ieeexplore.ieee.org
Outdoor insulators may experience stress due to severe environmental conditions, such as
pollution and contamination. Through the identification of partial discharges by ultrasonic …

[HTML][HTML] 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 …

A study of multilayer perceptron networks applied to classification of ceramic insulators using ultrasound

NF Sopelsa Neto, SF Stefenon, LH Meyer, R Bruns… - Applied Sciences, 2021 - mdpi.com
Interruptions in the supply of electricity cause numerous losses to consumers, whether
residential or industrial and may result in fines being imposed on the regulatory agency's …

Comparison of artificial intelligence techniques to failure prediction in contaminated insulators based on leakage current

A Medeiros, A Sartori, SF Stefenon… - Journal of Intelligent …, 2022 - content.iospress.com
Contamination in insulators results in an increase in surface conductivity. With higher
surface conductivity, insulators are more vulnerable to discharges that can damage them …

A review on characteristics and assessment techniques of high voltage silicone rubber insulator

K Sit, AK Pradhan, B Chatterjee… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
The usage of polymeric insulators in transmission and distribution overhead lines for the last
few decades has increased extensively. Silicone rubber (SiR) material is used enormously …

Study on material and mechanical characteristics of silicone rubber shed of field-aged 110 kV composite insulators

L Mu, B Wang, J Hao, Z Fang, Y Wang - Scientific Reports, 2023 - nature.com
Composite insulators have excellent performance and are more and more widely used in
power grid. The performance of composite insulators with different service duration will …

Controlling electrical stress of polymeric insulators using zinc oxide microvaristor

AA Salem, R Abd-rahman, Z Abdul-Malek, KY Lau… - Materials Letters, 2023 - Elsevier
Non-linear field grading materials (FGMs) based on zinc oxide (ZnO) microvaristors have
been proposed to control the electric stress and prevent premature aging and degradation of …