TY - GEN
T1 - Influence of design parameters and defects on electric field distributions inside MV cable joints
AU - Metwally, I. A.
AU - Al-Badi, A. H.
AU - Al-Hinai, A. S.
AU - Kamali, F. Al
AU - Al-Ghaithi, H.
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/6/20
Y1 - 2016/6/20
N2 - This paper presents a 2d finite-element analysis for a 33-kV, three-phase, three-core cross-linked polyethylene (XLPE) underground cable (UGC) straight joint of the heat shrink type. The aim of this work is to show how the joint design parameters and different defects affect the electric field distribution, and find optimum material properties to enhance the lifetime of cable joints. This is investigated by calculating the electric field distributions and showing how the optimized selection of joint material properties can reduce the localized high electric field to avoid partial discharge activities. Several design parameters are investigated such as insulation layer's thickness and relative permittivity, and termination angles of ferrule and its insulation. In addition, size and location of different defects such as air voids, water droplets, sharp tips and delamination are examined. The paper concludes important points for proper design of medium-voltage (MV) cable joints to enhance their lifetime and hence increase the reliability of such cable systems.
AB - This paper presents a 2d finite-element analysis for a 33-kV, three-phase, three-core cross-linked polyethylene (XLPE) underground cable (UGC) straight joint of the heat shrink type. The aim of this work is to show how the joint design parameters and different defects affect the electric field distribution, and find optimum material properties to enhance the lifetime of cable joints. This is investigated by calculating the electric field distributions and showing how the optimized selection of joint material properties can reduce the localized high electric field to avoid partial discharge activities. Several design parameters are investigated such as insulation layer's thickness and relative permittivity, and termination angles of ferrule and its insulation. In addition, size and location of different defects such as air voids, water droplets, sharp tips and delamination are examined. The paper concludes important points for proper design of medium-voltage (MV) cable joints to enhance their lifetime and hence increase the reliability of such cable systems.
KW - cable joints
KW - defects
KW - electric field distribution
KW - failure
KW - finite element method
UR - http://www.scopus.com/inward/record.url?scp=84979209088&partnerID=8YFLogxK
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U2 - 10.1109/MELCON.2016.7495348
DO - 10.1109/MELCON.2016.7495348
M3 - Conference contribution
AN - SCOPUS:84979209088
T3 - Proceedings of the 18th Mediterranean Electrotechnical Conference: Intelligent and Efficient Technologies and Services for the Citizen, MELECON 2016
BT - Proceedings of the 18th Mediterranean Electrotechnical Conference
A2 - Mavromoustakis, Constandinos
A2 - Louca, Soulla
A2 - Pattichis, Constantinos S.
A2 - Georgiou, Julius
A2 - Michael, Despina
A2 - Paschalidou, A.
A2 - Kyriacou, Efthyvoulos
A2 - Vassiliou, Vasos
A2 - Panayiotou, Christos
A2 - Kyriakides, Elias
A2 - Ellinas, Georgios
A2 - Hadjichristofi, George
A2 - Loizou, C.
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 18th Mediterranean Electrotechnical Conference, MELECON 2016
Y2 - 18 April 2016 through 20 April 2016
ER -
