IEC 60270 Calibration Uncertainty in Gas-Insulated Substations

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review


Partial discharge (PD) measurements in gasinsulated substations (GIS) are tested according to the standard IEC 60270. This “conventional” PD test method applies to electrically small devices. The equipment size increases the resonance, and attenuation, contributing to the total uncertainty. Additionally, when an ultra-high frequency (UHF) sensor is used as a coupling capacitor, the calibrator and PD pulse duration difference increase the measurement uncertainty. In this paper, the IEC method, using an external capacitor coupler and a UHF sensor, is simulated and tested in a full-scale GIS. The results show the uncertainty dependency with the IEC 60270 filter bandwidth. With proper measures, the UHF sensor correlates with the external coupling capacitor, resulting in a reasonable charge estimation for a 25-meter-long GIS. Knowing the calibration limits is critical to estimate the PD charge uncertainty.
Original languageEnglish
Title of host publicationProceedings of the 2023 IEEE Electrical Insulation Conference (EIC)
Number of pages4
ISBN (Electronic)978-1-6654-9341-3
ISBN (Print)978-1-6654-9342-0
Publication statusPublished - 2023
Event2023 IEEE Electrical Insulation Conference (EIC) - Quebec City, Canada
Duration: 18 Jun 202321 Jun 2023

Publication series

Name2023 IEEE Electrical Insulation Conference, EIC 2023


Conference2023 IEEE Electrical Insulation Conference (EIC)
CityQuebec City

Bibliographical note

Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.


  • partial discharge
  • IEC 60270
  • calibration
  • uncertainty
  • UHF


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