Title :
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
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;
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
DOI :
10.1109/ICSD.1995.522991
