Results 111 to 120 of about 2,804 (168)
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Diagnostic Method for Power Cable Insulation
IEEE Transactions on Electrical Insulation, 1986Diagnostic methods for two major cables, OF and XLPE cables, are presented. As a new diagnostic method for the OF cable insulation, an analysis of the insulation oil sampled from the splices or the end sealing box is proposed. As for diagnostic methods for the XLPE cable insulation, several methods are described to detect water tree deterioration ...
K. Soma, M. Aihara, Y. Kataoka
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Weld lines in power cable insulation
IEEE Electrical Insulation Magazine, 2004The quality of XLPE insulation of power cables has improved markedly in recent years, and insulation failures caused by contamination have diminished. As a result, focus has shifted on the effects of insulation morphology. There are concerns about the weld lines regarding the anisotropy and frozen-in mechanical stress.
A. Harlin +3 more
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Testing Methods for Power Cable Insulation
IEEE Transactions on Electrical Insulation, 1986Testing methods for power cable insulation depend basically on type and material of cable insulation. Cross-linked Polyethylene (XLPE) is now spreading widely for power cable insulation at the rated voltage of 66 to 154 kV world-wide, and especially in Japan many 275 kV lines have already been put in service. Typical conventional power cable insulation
S. Hiyama, Y. Fujiwara
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Insulation coordination of MV power cables
IEEE Transactions on Power Delivery, 1999In medium voltage power cables, the concept of cost/reliability has been current since the end of the 1980s when the Brazilian Standards introduced ethylene-propylene-rubber (EPR) insulated cables, with different thicknesses of insulation for conventional cables and for those with blocked conductors or with water tightness constructions.
M.D.R. Teixeria +2 more
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Composite Insulation for a Power Cable
International Journal of Electrical Engineering & Education, 1985Composite insulation for a power cable A relationship is derived for the voltage of a power cable containing three different insulating materials, allowing for a safety factor in the withstand voltage of each insulator layer and assuming that the electric fields in the dielectrics do not exceed a prescribed maximum. This relationship has been used in a
M. M. A. Salama, R. Hackam
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Insulated electric power cables
Electrical Engineering, 1959IN THE PAST 25 YEARS many diverse and exciting developments have appeared in insulated electric power cables of all voltages and in all matters relating to them. The importance of the entire field has greatly expanded mainly as a result of (1) the rapid growth in the use of electric power, (2) the increasing use of underground instead of overhead lines,
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Rejuvenation of Insulation in Aged Power Cables
Conference Record of the 2008 IEEE International Symposium on Electrical Insulation, 2008Three short cases studies will be documented to highlight the efficacy of silicone rejuvenation technology. The first is a 115 kV class transmission cable from Duke Power, the second will be a 3 phase, 1000 kcmil, 260 mil, 1973 vintage feeder circuit from Dominion Power and the third case will be a 500 kcmil, 1968 vintage Cu, 175 mil XLPE, 15 kV cable ...
J. Dionne, W. Stagi, W. Chatterton
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Failure Analysis Of Polymeric-Insulated Power Cable
IEEE Transactions on Power Apparatus and Systems, 1984This paper presents the findings of a survey conducted in Ontario to elucidate the contributing factors in primary-distribution, power-cable failures. Water treeing, although important, was involved in fewer failures than expected. Although a sensitivity analysis, was precluded by insufficient data on installed plant, four cable parameters were ...
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Development of polymer-insulated superconducting power cables
Fusion Engineering and Design, 1993Abstract A solid electrical insulation design was proposed for the very simple version of a superconducting cable by incorporating polymeric materials suited for the cable extrusion. The features of this insulation lie in the exclusion of electrically vulnerable cryogens from the electrical insulation and in the exploitation of excellent insulation ...
Masamitsu Kosaki +4 more
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Impulse strength of insulated-power-cable circuits
Transactions of the American Institute of Electrical Engineers, 1944Pursuant to a request of the cable working group, AIEE committee on power transmission and distribution, a co-ordinated study has been made on the impulse strength of insulated power cables having various types of insulation and their accessories. The data included not only all published information, but also much privately contributed information.
Herman Halperin, G. B. Shanklin
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