Journal ArticleDOI
Equivalent Salt Deposit Density Prediction of Silicone Rubber Insulators Under Simulated Pollution Conditions
TLDR
In this paper, the authors discuss the problem of insulator flashover, which occurs when soluble and/or non-soluble contaminants cover the insulator surface which results in a reduction of the surface resistance.Abstract:
Insulator flashover happens when soluble and/or non-soluble contaminants cover the insulator surface which results in a reduction of the surface resistance. Significant research has been conducted ...read more
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Journal ArticleDOI
I and i
TL;DR: There is, I think, something ethereal about i —the square root of minus one, which seems an odd beast at that time—an intruder hovering on the edge of reality.
Journal ArticleDOI
Wavelet group method of data handling for fault prediction in electrical power insulators
Stéfano Frizzo Stefenon,Matheus Henrique Dal Molin Ribeiro,Matheus Henrique Dal Molin Ribeiro,Ademir Nied,Viviana Cocco Mariani,Viviana Cocco Mariani,Leandro dos Santos Coelho,Leandro dos Santos Coelho,Diovana Fátima Menegat da Rocha,Rafael Bartnik Grebogi,Rafael Bartnik Grebogi,António E. Ruano,António E. Ruano +12 more
TL;DR: A hybrid method that uses Wavelet Energy Coefficient (WEC) for feature extraction and Group Method of Data Handling (GMDH) for time series prediction is proposed, being defined as Wavelet GMDH.
Journal ArticleDOI
Fault detection in insulators based on ultrasonic signal processing using a hybrid deep learning technique
Stéfano Frizzo Stefenon,Roberto Zanetti Freire,Luiz Henrique Meyer,Marcelo Picolotto Corso,Andreza Sartori,Ademir Nied,Anne Carolina Rodrigues Klaar,Kin-Choong Yow +7 more
TL;DR: In this paper, a study on fault prediction in distribution insulators, through a laboratory evaluation in a contaminated insulator, where 13.8-kV (root mean square) was applied considering an ultrasound detector connected to a computer for data set acquisition.
Journal ArticleDOI
Tools for measuring energy sustainability: A comparative review
Rafael Muniz,Stéfano Frizzo Stefenon,William Gouvêa Buratto,Ademir Nied,Luiz Henrique Meyer,Erlon Cristian Finardi,Ricardo Marino Kühl,José Alberto Silva de Sá,Brígida Ramati Pereira da Rocha +8 more
TL;DR: The conceptual bases that supported the research and the methodology created to carry out the comparative review will be presented and it is shown that it was possible to apply an innovative methodology to qualitatively compare different tools to measure sustainability.
References
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Journal ArticleDOI
I and i
TL;DR: There is, I think, something ethereal about i —the square root of minus one, which seems an odd beast at that time—an intruder hovering on the edge of reality.
Journal ArticleDOI
Combining Pattern Classifiers: Methods and Algorithms
TL;DR: This chapter discusses the development of the Spatial Point Pattern Analysis Code in S–PLUS, which was developed in 1993 by P. J. Diggle and D. C. Griffith.
MonographDOI
Combining Pattern Classifiers
TL;DR: This combining pattern classifiers methods and algorithms helps people to enjoy a good book with a cup of coffee in the afternoon, instead they cope with some harmful virus inside their computer.
Journal ArticleDOI
Use of leakage currents of insulators to determine the stage characteristics of the flashover process and contamination level prediction
TL;DR: In this paper, the root-mean-square value, waveforms, and power spectrum estimation were used for the stage pre-warning of contamination flashovers. But the results of the experiments were duplicated several times.