Experimental considerations on the possible impact of space charge accumulation on partial discharges activity for wire insulations

Naderiallaf, Hadi; Giangrande, Paolo; Galea, Michael

Abstract

The impact of space charge accumulation caused by unipolar square waveform excitation on partial discharge inception voltage (PDIV) and partial discharge extinction voltage (PDEV) for one Type-II insulated wire, i.e., Glass fibre and one Type-I insulated wire Polyether Ether Ketone (PEEK), are compared and investigated experimentally in this paper. Two rise times (i.e., 80 and 800 ns) and two impulse voltage repetition frequencies (i.e., 50 Hz and 2.5 kHz) are considered under different exposure times. Additionally, the influence of rise time and impulse voltage frequency on PDIV level of dispersion as a function of exposure time is compared for the two insulated wires, relying on the shape/slope parameter of the Weibull distribution.

Citation

Naderiallaf, H., Giangrande, P., & Galea, M. (2022). Experimental considerations on the possible impact of space charge accumulation on partial discharges activity for wire insulations. In 2022 IEEE 4th International Conference on Dielectrics (ICD 2022) (82-85). https://doi.org/10.1109/icd53806.2022.9863223

• Presentation Conference Type: Edited Proceedings
• Conference Name: 2022 IEEE 4th International Conference on Dielectrics (ICD)
• Start Date: Jul 3, 2022
• End Date: Jul 7, 2022
• Acceptance Date: Aug 29, 2022
• Online Publication Date: Aug 29, 2022
• Publication Date: Jul 3, 2022
• Deposit Date: Apr 3, 2023
• Publicly Available Date: Apr 17, 2023
• Publisher: Institute of Electrical and Electronics Engineers
• Volume: 1
• Pages: 82-85
• Book Title: 2022 IEEE 4th International Conference on Dielectrics (ICD 2022)
• ISBN: 9781665418348
• DOI: https://doi.org/10.1109/icd53806.2022.9863223
• Public URL: https://nottingham-repository.worktribe.com/output/11188020
• Publisher URL: https://ieeexplore.ieee.org/document/9863223
• Additional Information: H. Naderiallaf, P. Giangrande and M. Galea, "Experimental considerations on the possible impact of space charge accumulation on partial discharges activity for wire insulations," 2022 IEEE 4th International Conference on Dielectrics (ICD), Palermo, Italy, 2022, pp. 82-85, doi: 10.1109/ICD53806.2022.9863223.