Memorias de investigación
Artículos en revistas:
On the use of monopole antennas for determining the effect of the enclosure of a power transformer tank in partial discharges electromagnetic propagation
Año:2016
Áreas de investigación
  • Ingeniería eléctrica
Datos
Descripción
A well-defined condition-monitoring for power transformers is key to implementing a correct condition-based maintenance (CBM). In this regard, partial discharges (PD) measurement and its analysis allows to carry out on-line maintenance following the standards IEC-60270 and IEC-60076. However, new PD measurements techniques, such as acoustics or electromagnetic (EM) acquisitions using ultra-high-frequency (UHF) sensors are being taken into account, IEC-62478. PD measurements with antennas and the effect of their EM propagation in power transformer tanks is an open research topic that is considered in this paper. In this sense, an empty tank model is studied as a rectangular cavity and their resonances are calculated and compared with their measurement with a network analyser. Besides, two low cost improved monopole antennas deployed inside and outside of the tank model capture background noise and PD pulses in three different test objects (Nomex, twisted pair and insulator). The average spectrum of them are compared and can be found that mainly, the antenna frequency response, the frequency content distribution depending on the PD source and the enclosure resonances modes are the main factors to be considered in PD acquisitions with these sensors. Finally, with this set-up, it is possible to measure PD activity inside the tank from outside.
Internacional
Si
JCR del ISI
Si
Título de la revista
Sensors mdpi
ISSN
1424-8220
Factor de impacto JCR
2,677
Información de impacto
Albarracín R., Ardila-Rey J. A., Mas?ud A. A., On the use of monopole antennas for determining the effect of the enclosure of a power transformer tank in partial discharges electromagnetic propagation. Sensors 2016, 16, 148. Special issue State-of-the-Art Sensors Technologies, 2015. ISSN 1424-8220, http://dx.doi.org/10.3390/s16020148 Impact Factor 2.677 WOS (JCR) in 2016, Q1, T1, INSTRUMENTS & INSTRUMENTATION, 10/58.
Volumen
DOI
Número de revista
Desde la página
148
Hasta la página
168
Mes
SIN MES
Ranking
Q1
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Ricardo Albarracin Sanchez UPM
  • Autor: Jorge Afredo Ardila-Rey Universidad Técnica Federico Santa María
  • Autor: Abdullahi A Mas'ud Jubail Industrial College
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Departamento: Ingeniería Eléctrica, Electrónica Automática y Física Aplicada