Results 31 to 40 of about 24,806 (164)
IEEE Access, 2022 A suitable, non-standard method for artificial pollution testing using simulated acid rain pollution in a laboratory was developed in this work. The method is applicable to a wide range of climatic conditions and rain acidities.
Chibuike Ilomuanya +2 more
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Classification of partial discharges
IEEE Transactions on Electrical Insulation, 1993 For a long time, classification of partial discharges was performed by eye, by studying discharge patterns at the ellipse of an oscilloscope screen. The introduction of digital processing techniques allowed automation of the recognition procedure. These procedures are reported and applied to a number of actual HV constructions which suffer from partial
Kreuger, F.H. (author) +2 more
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Statistical Analysis of Partial Discharge Characteristics in Transformer Oil at the “Point-Plane” Electrode at Alternating Voltage [PDF]
Problems of the Regional Energetics, 2017 In this paper, we consider the problems related to measuring and analyzing the characteristics of partial discharges which are the main instrument for oil-filled high-voltage electrical equipment diagnosing.
Korobeynikov S.M. +3 more
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Comparative Tests of Partial Discharges in Nomex® 910 Paper and Cellulose Paper
Energies, 2020 The article presents the results of comparative investigations of partial discharges in two insulation systems; aramid-enhanced cellulose paper-mineral oil, and pure cellulose paper-mineral oil. Partial discharges were investigated in a diagonal electric
Hubert Moranda +4 more
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IEEE Access, 2022 In this work, the extent of natural cleansing effect of rainfall, wind and fog or a combination of these on an insulator string were investigated. Results showed that pollution losses progress with time, with a considerable fraction of losses occurring ...
Chibuike Ilomuanya +2 more
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Diagnosis of High Voltage Insulators Made of Ceramic Using Spectrophotometry
Journal of Spectroscopy, 2016 The paper presents results of comparative analysis of optical signals emitted by partial discharges occurring on three types of high voltage insulators made of porcelain.
Paweł Frącz +3 more
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Features of monitoring extra large partial discharge in high voltage insulators
Известия высших учебных заведений: Проблемы энергетики, 2022 THE PURPOSE of the described study is to study the effect of partial discharges on the physical state of previously detected defects in high-voltage insulators.
D. A. Ivanov
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Partial discharge pulse propagation in power cable and partial discharge monitoring system [PDF]
IEEE Transactions on Dielectrics and Electrical Insulation, 2014 Partial discharge (PD) based condition monitoring has been widely applied to power cables. However, difficulties in interpretation of measurement results (location and criticality) remain to be tackled. This paper aims to develop further knowledge in PD signal propagation in power cables and attenuation by the PD monitoring system devices to address ...
Sheng, Bojie +6 more
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Electrical engineering & Electromechanics, 2019 Introduction. High-voltage insulation systems always have some background level of the partial discharges, which does not have any significant effect on the life of the electrical insulation design.
G. V. Bezprozvannych +3 more
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Energies, 2020 This paper describes a correlation of partial discharge phase-resolved patterns with an optical imaging performed in a non-uniform electric field configuration.
Marek Florkowski +3 more
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