Effect of voltage reduction in minimising partial discharge activity in cables - experimental study

Faisal Peer Mohamed; W. H. Siew; Bojie Sheng; Brian Stewart

doi:10.1109/CEIDP.2017.8257515

Effect of voltage reduction in minimising partial discharge activity in cables - experimental study

Faisal Peer Mohamed, W. H. Siew, Bojie Sheng, Brian Stewart

Electronic And Electrical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

13 Downloads (Pure)

Abstract

A common cause of insulation degradation in high voltage (HV) cables is due to partial discharges (PD). PD may be initiated through imperfections and contaminants present in the insulation. It can be hypothesized that a reduction in system voltage can potentially reduce PD, which will correspondingly extend the service life of the cable. Currently, industry voltage statutory requirements permit ±6% tolerance setting on nominal voltage on distribution networks. Such ±6% voltage reduction on may have little or adverse effect on PD magnitude which depends on the nature of defect. Hence the accuracy and type of measuring PD while reducing system voltage is more critical for this application. Power cable as a low pass filter which attenuates and disperse the PD pulses. In this paper effect of voltage reduction on PD is investigated using standard electrode geometries such as point-plane, point-point and point- rod using IEC60270 measurement system together with frequency domain measurements. It has been observed that PD frequency characteristics at different voltages varies in the wideband frequency spectrum.

Original language	English
Title of host publication	CEIDP 2017 - IEEE Conference on Electrical Insulation and Dielectric Phenomenon
Place of Publication	Piscataway, N.J.
Publisher	IEEE
Pages	331-334
Number of pages	4
ISBN (Print)	9781538611944
DOIs	https://doi.org/10.1109/CEIDP.2017.8257515
Publication status	Published - 12 Jan 2018
Event	2017 IEEE Conference on Electrical Insulation and Dielectric Phenomenon, CEIDP 2017 - Texas, United States Duration: 22 Oct 2017 → 25 Oct 2017

Conference

Conference	2017 IEEE Conference on Electrical Insulation and Dielectric Phenomenon, CEIDP 2017
Country	United States
City	Texas
Period	22/10/17 → 25/10/17

Keywords

partial discharge
voltage reduction
power cables
insulation degradation
nominal voltage

Access to Document

10.1109/CEIDP.2017.8257515

Mohamed-etal-CEIDP-2017-Effect-of-voltage-reduction-in-minimising-partial-dischargeAccepted author manuscript, 663 KB

Link to publication in Scopus

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Projects

1 Finished

Hubnet: Research Leadership and Networking for Energy Networks (Extension)

McArthur, S., Catterson, V. & Siew, W. H.

EPSRC (Engineering and Physical Sciences Research Council)

1/06/16 → 30/09/18

Project: Research

Research Output

1 Poster

Effect of voltage reduction in minimising partial discharge activity in cables – experimental study

Siew, W. H., Peer Mohamed, F., Sheng, B. & Stewart, B., 22 Oct 2017.

Research output: Contribution to conference › Poster

Cite this

Mohamed, F. P., Siew, W. H., Sheng, B., & Stewart, B. (2018). Effect of voltage reduction in minimising partial discharge activity in cables - experimental study. In CEIDP 2017 - IEEE Conference on Electrical Insulation and Dielectric Phenomenon (pp. 331-334). IEEE. https://doi.org/10.1109/CEIDP.2017.8257515

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abstract = "A common cause of insulation degradation in high voltage (HV) cables is due to partial discharges (PD). PD may be initiated through imperfections and contaminants present in the insulation. It can be hypothesized that a reduction in system voltage can potentially reduce PD, which will correspondingly extend the service life of the cable. Currently, industry voltage statutory requirements permit ±6% tolerance setting on nominal voltage on distribution networks. Such ±6% voltage reduction on may have little or adverse effect on PD magnitude which depends on the nature of defect. Hence the accuracy and type of measuring PD while reducing system voltage is more critical for this application. Power cable as a low pass filter which attenuates and disperse the PD pulses. In this paper effect of voltage reduction on PD is investigated using standard electrode geometries such as point-plane, point-point and point- rod using IEC60270 measurement system together with frequency domain measurements. It has been observed that PD frequency characteristics at different voltages varies in the wideband frequency spectrum.",

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author = "Mohamed, {Faisal Peer} and Siew, {W. H.} and Bojie Sheng and Brian Stewart",

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Mohamed, FP, Siew, WH, Sheng, B & Stewart, B 2018, Effect of voltage reduction in minimising partial discharge activity in cables - experimental study. in CEIDP 2017 - IEEE Conference on Electrical Insulation and Dielectric Phenomenon. IEEE, Piscataway, N.J., pp. 331-334, 2017 IEEE Conference on Electrical Insulation and Dielectric Phenomenon, CEIDP 2017, Texas, United States, 22/10/17. https://doi.org/10.1109/CEIDP.2017.8257515

Effect of voltage reduction in minimising partial discharge activity in cables - experimental study. / Mohamed, Faisal Peer; Siew, W. H.; Sheng, Bojie; Stewart, Brian.

CEIDP 2017 - IEEE Conference on Electrical Insulation and Dielectric Phenomenon. Piscataway, N.J. : IEEE, 2018. p. 331-334.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

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N2 - A common cause of insulation degradation in high voltage (HV) cables is due to partial discharges (PD). PD may be initiated through imperfections and contaminants present in the insulation. It can be hypothesized that a reduction in system voltage can potentially reduce PD, which will correspondingly extend the service life of the cable. Currently, industry voltage statutory requirements permit ±6% tolerance setting on nominal voltage on distribution networks. Such ±6% voltage reduction on may have little or adverse effect on PD magnitude which depends on the nature of defect. Hence the accuracy and type of measuring PD while reducing system voltage is more critical for this application. Power cable as a low pass filter which attenuates and disperse the PD pulses. In this paper effect of voltage reduction on PD is investigated using standard electrode geometries such as point-plane, point-point and point- rod using IEC60270 measurement system together with frequency domain measurements. It has been observed that PD frequency characteristics at different voltages varies in the wideband frequency spectrum.

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