Electromechanical effects in XLPE cable models

Author

Lewis, T.J. ; Llewellyn, J.P. ; van der Sluijs, M.J. ; Freestone, J. ; Hampton, R.N.

Author_Institution

Univ. of Wales, Bangor, UK

fYear

1995

fDate

10-13 Jul 1995

Firstpage

269

Lastpage

273

Abstract

The authors present an XLPE cable model. They show that experiments confirm the essential features of the Lippmann equation now developed to include bulk effects. Moreover the value of the compliance deduced from the equations is of the right order of magnitude and of the correct temperature dependence. The non-linearities emphasise the importance of extending the measurements to much higher field strengths. The existence of all-pervading mechanical body stresses which, under alternating voltages, produce cyclic strains particularly in regions of high electrical fields has been demonstrated

Keywords

XLPE insulation; electric breakdown; electromechanical effects; internal stresses; power cable insulation; power cables; 18 kV; Lippmann equation; XLPE cable models; alternating voltages; bulk effects; compliance; cyclic strains; electromechanical effects; high electrical fields; high field strengths; mechanical body stresses; nonlinearities; temperature dependence; Cables; Circuits; Dielectrics and electrical insulation; Electrodes; Equations; Impedance; Space charge; Strain measurement; Stress; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Conduction and Breakdown in Solid Dielectrics, 1995. ICSD'95., Proceedings of the 1995 IEEE 5th International Conference on

Conference_Location

Leicester

Print_ISBN

0-7803-2040-9

Type

conf

DOI

10.1109/ICSD.1995.522991

Filename

522991