Print Email Facebook Twitter IEC 60270 Calibration Uncertainty in Gas-Insulated Substations Title IEC 60270 Calibration Uncertainty in Gas-Insulated Substations Author Mier Escurra, C. (TU Delft High Voltage Technology Group) Mor, A. R. (Universitat Politécnica de Valencia) Vaessen, P.T.M. (TU Delft High Voltage Technology Group) Date 2023 Abstract 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. Subject partial dischargeIEC 60270calibrationuncertaintyUHF To reference this document use: http://resolver.tudelft.nl/uuid:442e0267-4b34-416c-a1dd-26f7dbfc10ac DOI https://doi.org/10.1109/EIC55835.2023.10177354 Publisher IEEE Embargo date 2024-01-14 ISBN 978-1-6654-9342-0 Source Proceedings of the 2023 IEEE Electrical Insulation Conference (EIC) Event 2023 IEEE Electrical Insulation Conference (EIC), 2023-06-18 → 2023-06-21, Quebec City, Canada Series 2023 IEEE Electrical Insulation Conference, EIC 2023 Bibliographical note Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care 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. Part of collection Institutional Repository Document type conference paper Rights © 2023 C. Mier Escurra, A. R. Mor, P.T.M. Vaessen Files PDF IEC_60270_Calibration_Unc ... ations.pdf 668.6 KB Close viewer /islandora/object/uuid:442e0267-4b34-416c-a1dd-26f7dbfc10ac/datastream/OBJ/view