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Memorias de investigación
Communications at congresses:
Wideband resistive divider for 24 kV networks
Year:2017
Research Areas
  • Electric engineering
Information
Abstract
The most important advantage of voltage dividers over traditional voltage transformers is that voltage dividers do not have an iron core with non-linear hysteresis characteristics. Voltage dividers have linear behavior with respect to both overvoltages and a wide frequency range from DC to high frequency. The weak point of voltage divider is the influence of external high voltage and high currents in its vicinity. The fields arising from high voltages and high currents in neighboring phases and ground conductors are one of its main sources for systematic measurement errors. This paper describes a shielding voltage divider for medium voltage network of 24 kV insulated in SF6 composed by two resistive-capacitive dividers integrated one inside the other, which achieves a flat frequency response up to 5 kHz. The metallic shielding improves its immunity against electric fields. The metrological characterization performed permits to use the voltage sensor in 24 kV grids with an accuracy class of 0.2 and low temperature effect for operation conditions of MV power grids.
International
No
Congress
6º Congreso Español de Metrología
960
Place
San Fernando, Cádiz
Reviewers
Si
ISBN/ISSN
Start Date
06/06/2017
End Date
08/06/2017
From page
1
To page
7
6º Congreso Español de Metrología
Participants
  • Autor: Fernando Garnacho Vecino (UPM)
  • Autor: Abderrahim Khamlichi El Khamlichi (UPM)
  • Autor: Pascual Simón (FFII)
  • Autor: Pablo Rojo (Antiguo alumno de la UPM)
  • Autor: Jorge Rovira (FFII)
  • Autor: Álvaro Valero (FFII)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Redes e instalaciones de baja y alta tensión
  • Departamento: Ingeniería Eléctrica, Electrónica Automática y Física Aplicada
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