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.
| 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 | |
| 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 |
Fingerprint
Keywords
- partial discharge
- voltage reduction
- power cables
- insulation degradation
- nominal voltage
Cite this
}
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
TY - GEN
T1 - Effect of voltage reduction in minimising partial discharge activity in cables - experimental study
AU - Mohamed, Faisal Peer
AU - Siew, W. H.
AU - Sheng, Bojie
AU - Stewart, Brian
N1 - © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting /republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
PY - 2018/1/12
Y1 - 2018/1/12
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.
AB - 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.
KW - partial discharge
KW - voltage reduction
KW - power cables
KW - insulation degradation
KW - nominal voltage
UR - http://www.scopus.com/inward/record.url?scp=85045184565&partnerID=8YFLogxK
U2 - 10.1109/CEIDP.2017.8257515
DO - 10.1109/CEIDP.2017.8257515
M3 - Conference contribution book
SN - 9781538611944
SP - 331
EP - 334
BT - CEIDP 2017 - IEEE Conference on Electrical Insulation and Dielectric Phenomenon
PB - IEEE
CY - Piscataway, N.J.
ER -