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AuthorBesharatifard, Hamidreza
AuthorHasanzadeh, Saeed
AuthorMuyeen, S M
AuthorKamwa, Innocent
Available date2023-02-26T08:29:56Z
Publication Date2023
Publication NameIET Generation, Transmission and Distribution
ResourceScopus
URIhttp://dx.doi.org/10.1049/gtd2.12699
URIhttp://hdl.handle.net/10576/40360
AbstractPartial discharge is one of the main reasons for insulation degradation in high-voltage apparatuses. Partial discharge is an ineluctable phenomenon that happens when a high electrical field is adjacent to an insulator. High-frequency current transformers are widely used for detecting partial discharge current in high-voltage equipment. Determination of the apparent charge in pico coulombs is essential for having a common understanding of results and verifying that the measuring system can obtain specified partial discharge magnitude correctly. To this end, a high-frequency current transformer sensor and a partial discharge calibrator have been prepared to measure the current of the partial discharge (PD) pulses inside mineral oil. The constructed PD calibrator has been evaluated. The high-frequency current transformer (HFCT) sensor has been simulated using a mathematical model-based AC analysis and has been characterized and then calibrated using a calibration technique to measure the apparent charge of the PD pulses. Experimental results show the effectiveness of the HFCT sensor and the proposed calibration method. 2022 The Authors. IET Generation, Transmission & Distribution published by John Wiley & Sons Ltd on behalf of The Institution of Engineering and Technology.
Languageen
PublisherJohn Wiley and Sons Inc
Subjectcalibration
current transformers
partial discharge measurement
TitleEvaluation of a calibration technique in measuring partial discharges inside mineral oils with a high-frequency current transformer (HFCT) sensor: A case study
TypeArticle
Pagination706-715
Issue Number3
Volume Number17
dc.accessType Abstract Only


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