Investigating the Corona and Surface Discharges at Varying Altitudes Using High Voltage AC Waveforms

Lakshmi Tharamal; Yazid Hadjadj; Refat A. Ghunem; Douglas McIntyre; Ayman El-Hag; Halil Uckol; Alhaytham Y. Alqudsi; Osvaldo Arenas; Darren Jang

doi:10.1109/CEIDP61707.2025.11218569

Investigating the Corona and Surface Discharges at Varying Altitudes Using High Voltage AC Waveforms

Lakshmi Tharamal
, Yazid Hadjadj
, Refat A. Ghunem
, Douglas McIntyre
, Ayman El-Hag
, Halil Uckol
, Alhaytham Y. Alqudsi
, Osvaldo Arenas
, Darren Jang

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

This study characterizes corona and surface discharges under varying atmospheric pressures, simulating sea-level conditions (1013. 25 mbar), descent and cruise altitudes (to 200 mbar) under power frequency voltages. A high-frequency current transformer is employed to capture the partial discharge signals. Detailed analysis of the partial discharge signal shows an increase in the rise time, time to half, pulse width, slew rate, voltage amplitude, and charge magnitude with altitude. But concurrently, a reduction in the inception voltage is reported for partial discharge with altitudes, suggesting an increase in the severity of the partial discharge signals on insulation with rising altitudes.

Original language	English
Title of host publication	2025 IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2025
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	724-727
Number of pages	4
ISBN (Electronic)	9798331589028
DOIs	https://doi.org/10.1109/CEIDP61707.2025.11218569
Publication status	Published - 2025
Externally published	Yes
Event	100th IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2025 - Manchester, United Kingdom Duration: 14 Sept 2025 → 17 Sept 2025

Publication series

Name	Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
ISSN (Print)	0084-9162

Conference

Conference	100th IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2025
Country/Territory	United Kingdom
City	Manchester
Period	14/09/25 → 17/09/25

Bibliographical note

Publisher Copyright:
© 2025 IEEE.

Keywords

Aircraft electrification
corona
HFCT
surface discharge
waveform characteristics

Access to Document

10.1109/CEIDP61707.2025.11218569

Cite this

Tharamal, L., Hadjadj, Y., Ghunem, R. A., McIntyre, D., El-Hag, A., Uckol, H., Alqudsi, A. Y., Arenas, O., & Jang, D. (2025). Investigating the Corona and Surface Discharges at Varying Altitudes Using High Voltage AC Waveforms. In 2025 IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2025 (pp. 724-727). (Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CEIDP61707.2025.11218569

Tharamal, Lakshmi ; Hadjadj, Yazid ; Ghunem, Refat A. et al. / Investigating the Corona and Surface Discharges at Varying Altitudes Using High Voltage AC Waveforms. 2025 IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2025. Institute of Electrical and Electronics Engineers Inc., 2025. pp. 724-727 (Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP).

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title = "Investigating the Corona and Surface Discharges at Varying Altitudes Using High Voltage AC Waveforms",

abstract = "This study characterizes corona and surface discharges under varying atmospheric pressures, simulating sea-level conditions (1013. 25 mbar), descent and cruise altitudes (to 200 mbar) under power frequency voltages. A high-frequency current transformer is employed to capture the partial discharge signals. Detailed analysis of the partial discharge signal shows an increase in the rise time, time to half, pulse width, slew rate, voltage amplitude, and charge magnitude with altitude. But concurrently, a reduction in the inception voltage is reported for partial discharge with altitudes, suggesting an increase in the severity of the partial discharge signals on insulation with rising altitudes.",

keywords = "Aircraft electrification, corona, HFCT, surface discharge, waveform characteristics",

author = "Lakshmi Tharamal and Yazid Hadjadj and Ghunem, \{Refat A.\} and Douglas McIntyre and Ayman El-Hag and Halil Uckol and Alqudsi, \{Alhaytham Y.\} and Osvaldo Arenas and Darren Jang",

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year = "2025",

doi = "10.1109/CEIDP61707.2025.11218569",

language = "English",

series = "Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP",

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}

Tharamal, L, Hadjadj, Y, Ghunem, RA, McIntyre, D, El-Hag, A, Uckol, H, Alqudsi, AY, Arenas, O & Jang, D 2025, Investigating the Corona and Surface Discharges at Varying Altitudes Using High Voltage AC Waveforms. in 2025 IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2025. Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP, Institute of Electrical and Electronics Engineers Inc., pp. 724-727, 100th IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2025, Manchester, United Kingdom, 14/09/25. https://doi.org/10.1109/CEIDP61707.2025.11218569

Investigating the Corona and Surface Discharges at Varying Altitudes Using High Voltage AC Waveforms. / Tharamal, Lakshmi; Hadjadj, Yazid; Ghunem, Refat A. et al.
2025 IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2025. Institute of Electrical and Electronics Engineers Inc., 2025. p. 724-727 (Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Tharamal, Lakshmi

AU - Hadjadj, Yazid

AU - Ghunem, Refat A.

AU - McIntyre, Douglas

AU - El-Hag, Ayman

AU - Uckol, Halil

AU - Alqudsi, Alhaytham Y.

AU - Arenas, Osvaldo

AU - Jang, Darren

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N2 - This study characterizes corona and surface discharges under varying atmospheric pressures, simulating sea-level conditions (1013. 25 mbar), descent and cruise altitudes (to 200 mbar) under power frequency voltages. A high-frequency current transformer is employed to capture the partial discharge signals. Detailed analysis of the partial discharge signal shows an increase in the rise time, time to half, pulse width, slew rate, voltage amplitude, and charge magnitude with altitude. But concurrently, a reduction in the inception voltage is reported for partial discharge with altitudes, suggesting an increase in the severity of the partial discharge signals on insulation with rising altitudes.

AB - This study characterizes corona and surface discharges under varying atmospheric pressures, simulating sea-level conditions (1013. 25 mbar), descent and cruise altitudes (to 200 mbar) under power frequency voltages. A high-frequency current transformer is employed to capture the partial discharge signals. Detailed analysis of the partial discharge signal shows an increase in the rise time, time to half, pulse width, slew rate, voltage amplitude, and charge magnitude with altitude. But concurrently, a reduction in the inception voltage is reported for partial discharge with altitudes, suggesting an increase in the severity of the partial discharge signals on insulation with rising altitudes.

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KW - corona

KW - HFCT

KW - surface discharge

KW - waveform characteristics

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Tharamal L, Hadjadj Y, Ghunem RA, McIntyre D, El-Hag A, Uckol H et al. Investigating the Corona and Surface Discharges at Varying Altitudes Using High Voltage AC Waveforms. In 2025 IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2025. Institute of Electrical and Electronics Engineers Inc. 2025. p. 724-727. (Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP). doi: 10.1109/CEIDP61707.2025.11218569

Investigating the Corona and Surface Discharges at Varying Altitudes Using High Voltage AC Waveforms

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Bibliographical note

Keywords

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