Cardiff University | Prifysgol Caerdydd ORCA
Online Research @ Cardiff 
WelshClear Cookie - decide language by browser settings

Online measurement of voltage gradient distortion and leakage current of heavily contaminated outdoor insulation using thermal imaging

Albano, M. ORCID: https://orcid.org/0000-0002-5486-4299, Waters, R. T., Slama, M. A. and Haddad, A. ORCID: https://orcid.org/0000-0003-4153-6146 2024. Online measurement of voltage gradient distortion and leakage current of heavily contaminated outdoor insulation using thermal imaging. IEEE Transactions on Dielectrics and Electrical Insulation 31 (2) , pp. 988-996. 10.1109/TDEI.2023.3340985

[thumbnail of Online_Measurement_of_Voltage_Gradient_Distortion_and_Leakage_Current_of_Heavily_Contaminated_Outdoor_Insulation_using_Thermal_Imaging.pdf] PDF - Accepted Post-Print Version
Available under License Creative Commons Attribution Non-commercial No Derivatives.

Download (571kB)

Abstract

A new thermal model of an insulator heat loss coefficient proves that evaporation power loss is more significant than thermal conduction to a moist environment. Consequently, the leakage current in a moist pollution layer may cause dry-band formation. Such bands are bridged and sustained by streamer discharges, which can initiate partial arcing. Clean-fog tests of contaminated insulators have been shown to provide infrared temperature data for the model, and the evaluation of voltage gradients in this dry-band regime. The same modelling also offers a unique method of online leakage current monitoring.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Publisher: Institute of Electrical and Electronics Engineers
ISSN: 1070-9878
Date of First Compliant Deposit: 8 December 2023
Date of Acceptance: 27 November 2023
Last Modified: 14 May 2024 16:38
URI: https://orca.cardiff.ac.uk/id/eprint/164635

Actions (repository staff only)

Edit Item Edit Item

Downloads

Downloads per month over past year

View more statistics