Zobrazeno 1 - 10
of 16
pro vyhledávání: '"M V, Rojas"'
Publikováno v:
IEEE Transactions on Dielectrics and Electrical Insulation. 22:2302-2310
Partial discharges (PD) detection is a widely extended technique for the diagnosis of electrical equipment. Ultra-high frequency (UHF) detection techniques appear as the best choice if the goal is to detect PD online and to locate devices with insula
Publikováno v:
IEEE Transactions on Dielectrics and Electrical Insulation. 20:1436-1443
Partial Discharges (PDs) are one of the most important classes of ageing processes that occur within electrical insulation. The measurement of PDs is useful in the diagnosis of electrical equipment because PDs activity is related to different ageing
Autor:
Matilde Sanchez-Fernandez, M. V. Rojas-Moreno, Juan Manuel Martínez-Tarifa, Ricardo Albarracin Sanchez, Eva Rajo-Iglesias, Guillermo Robles
Publikováno v:
e-Archivo. Repositorio Institucional de la Universidad Carlos III de Madrid
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Partial discharge (PD) detection is a widely extended technique for electrical insulation diagnosis. Ultrahigh-frequency detection techniques appear as a feasible alternative to traditional methods owing to their inherent advantages such as the capab
Publikováno v:
2016 IEEE International Conference on Dielectrics (ICD).
Monitoring dielectric insulation systems is important for the maintenance of electric assets. In open-air substations, this task can be done with antennas because they cover wide areas and detect the electromagnetic emissions of one of the most commo
Autor:
Juan Manuel Martínez-Tarifa, Jesus Rubio-Serrano, Guillermo Robles, M. V. Rojas-Moreno, Jose A. Garcia-Souto, Julio E. Posada
Publikováno v:
IEEE Transactions on Dielectrics and Electrical Insulation. 19:1569-1578
The detection of Partial Discharges (PD) is a reliable technique to analyze the status of electrical insulation in power transformers. Phase resolved partial discharge patterns are being complemented with high frequency pulse waveform analysis, in or
Autor:
Bernardo Tellini, J Sanz-Feito, C. Zappacosta, M. V. Rojas-Moreno, Guillermo Robles, Juan Manuel Martínez-Tarifa
Publikováno v:
e-Archivo. Repositorio Institucional de la Universidad Carlos III de Madrid
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The objective of this paper is to present a simple sensor based on Faraday’s Law together with an integration and amplifying stage and used this for measuring fast current pulses. Its behavior in time and frequency is tested by measuring Partial Di
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 58:3907-3913
Partial discharges are not only a consequence but a symptom of insulation degradation in electrical equipment. Partial discharges are revealed outside the insulation as very narrow high-frequency pulses that were superimposed to the grid frequency hi
Publikováno v:
e-Archivo. Repositorio Institucional de la Universidad Carlos III de Madrid
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Sensors, Vol 14, Iss 2, Pp 3408-3427 (2014)
Sensors (Basel, Switzerland)
Sensors; Volume 14; Issue 2; Pages: 3408-3427
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Sensors, Vol 14, Iss 2, Pp 3408-3427 (2014)
Sensors (Basel, Switzerland)
Sensors; Volume 14; Issue 2; Pages: 3408-3427
Partial discharge (PD) detection is a standardized technique to qualify electrical insulation in machines and power cables. Several techniques that analyze the waveform of the pulses have been proposed to discriminate noise from PD activity. Among th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::191c02395754e968483f9b6ac3605a1f
http://hdl.handle.net/10016/27942
http://hdl.handle.net/10016/27942
Autor:
Ricardo Albarracín, J. L. Vazquez-Roy, Jorge Alfredo Ardila-Rey, Eva Rajo-Iglesias, Juan Manuel Martínez-Tarifa, Matilde Sanchez-Fernandez, M. V. Rojas-Moreno, Guillermo Robles
Publikováno v:
2013 IEEE International Conference on Solid Dielectrics (ICSD).
Due to their impulsive nature, partial discharges in insulation systems emit in a broad band of frequencies ranging from tens of megahertz to gigahertz. Antennas can be placed at secure distances from the high-voltage source and measure partial disch
Autor:
Jorge Alfredo Ardila-Rey, Juan Manuel Martínez-Tarifa, M. Mejino, M. V. Rojas-Moreno, Ricardo Albarracín, Guillermo Robles
Publikováno v:
2013 IEEE International Conference on Solid Dielectrics (ICSD).
Electromagnetic radiation emissions from partial discharges (PD) can be measured, which could be helpful for avoiding unwanted asset disconnections in the power grid for insulation evaluation. These radio-frequency (RF) measurements do not require ga