Title :
Optimization of the flat power cables´ electrical insulation system
Author :
Karady, George G. ; Murray, Judity C.
Author_Institution :
Dept. of Electr. Eng., Arizona State Univ., Tempe, AZ, USA
Abstract :
The authors studied the electric field distribution in flat cables as a function of dimensions and isolation materials. If the maximum electrical stress is higher than 25 kV/in, corona will be generated. The parametric study indicated that the electrical stress can be reduced by the proper selection of conductor dimensions, the use of semiconductive polytetrafluoroethylene (PTFE) material, and rounding off of the edges. The results of the calculations were verified by high-voltage tests in which the corona inception voltage of typical designs was measured. The calculated inception voltage correlated well with the measured voltage
Keywords :
cable insulation; cable testing; corona; electric fields; insulation testing; organic insulating materials; power cables; corona; electric field distribution; electrical insulation system; electrical stress; flat power cables´; high-voltage tests; inception voltage; optimisation; parametric study; polytetrafluoroethylene; Cable insulation; Conducting materials; Corona; Dielectrics and electrical insulation; Parametric study; Power cables; Semiconductor materials; Stress; Testing; Voltage;
Conference_Titel :
Electrical Insulation, Conference Record of the 1992 IEEE International Symposium on
Conference_Location :
Baltimore, MD
Print_ISBN :
0-7803-0649-X
DOI :
10.1109/ELINSL.1992.246953
