TY - GEN
T1 - Experimental considerations on the possible impact of space charge accumulation on partial discharges activity for wire insulations
AU - Naderiallaf, Hadi
AU - Giangrande, Paolo
AU - Galea, Michael
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - 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.
AB - 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.
KW - electric machines
KW - partial discharges
KW - pulse width modulation
KW - space charge
KW - variable speed drives
UR - http://www.scopus.com/inward/record.url?scp=85138223971&partnerID=8YFLogxK
U2 - 10.1109/ICD53806.2022.9863223
DO - 10.1109/ICD53806.2022.9863223
M3 - Conference contribution
AN - SCOPUS:85138223971
T3 - ICD 2022 - IEEE 2022 4th International Conference on Dielectrics, Proceedings
SP - 82
EP - 85
BT - ICD 2022 - IEEE 2022 4th International Conference on Dielectrics, Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 4th IEEE International Conference on Dielectrics, ICD 2022
Y2 - 3 July 2022 through 7 July 2022
ER -