Characterization of the linearity of a 1200 kV HVDC divider

Research output: Book/ReportReportProfessional

Abstract

The report describes the methods used and results of a characterization of the voltage non-linearity of a 1200 kV HVDC divider at Aalto University high voltage laboratory. Measurements were performed in April 2012 and June 2013. Historical data from 1990 and 2007 were combined with new measurement results to gain good understanding of the voltage dependence and its reasons. The new more precise measurements confirm the findings of the 2007 measurements. The results show that the scale factor of the divider has a linear relative voltage dependence of -0.2 %/MV. It was also found that the oil-filled high voltage resistors have a thermal time constant of several hours.
Original languageEnglish
Place of PublicationEspoo
PublisherCentre of Metrology and Accreditation
Number of pages16
ISBN (Print)978-952-6682-08-2 (PDF)
Publication statusPublished - 2013
MoE publication typeD4 Published development or research report or study

Publication series

NamePublication
PublisherCentre for Metrology and Accreditation
No.J2/2013
ISSN (Print)1235-2704

Fingerprint

dividers
linearity
high voltages
electric potential
resistors
time constant
oils
nonlinearity

Keywords

  • voltage measurements
  • HVDC dividers

Cite this

Hällström, J. (2013). Characterization of the linearity of a 1200 kV HVDC divider. Espoo: Centre of Metrology and Accreditation. MIKES Publication, No. J2/2013
Hällström, Jari. / Characterization of the linearity of a 1200 kV HVDC divider. Espoo : Centre of Metrology and Accreditation, 2013. 16 p. (MIKES Publication; No. J2/2013).
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Hällström, J 2013, Characterization of the linearity of a 1200 kV HVDC divider. MIKES Publication, no. J2/2013, Centre of Metrology and Accreditation, Espoo.

Characterization of the linearity of a 1200 kV HVDC divider. / Hällström, Jari.

Espoo : Centre of Metrology and Accreditation, 2013. 16 p. (MIKES Publication; No. J2/2013).

Research output: Book/ReportReportProfessional

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Hällström J. Characterization of the linearity of a 1200 kV HVDC divider. Espoo: Centre of Metrology and Accreditation, 2013. 16 p. (MIKES Publication; No. J2/2013).