Title :
The effect of the polypropylene film on the impulse breakdown strength of the laminated oil-impregnated papers
Author :
Saitoh, Kazuo ; Kawakami, Yohji ; Murata, Masao
Author_Institution :
Nagaoka Univ. of Technol., Niigata, Japan
Abstract :
PPLP (polypropylene laminated paper) used for oil-filled cables in high-voltage transmission systems was studied to determine the effect of the PP film on the impulse breakdown strength. The dielectric breakdown of PPLP was compared with that of Kraft paper alone. It was found that the impulse breakdown strength was affected by the relative position of the PP film and Kraft paper. For this kind of laminated oil-impregnated paper, the most essential factor in the impulse breakdown mechanism is the effect of the electric charges, especially the positive charge, trapped on the surface of the PP film
Keywords :
composite insulating materials; electric breakdown of solids; electric strength; impulse testing; insulating thin films; insulation testing; laminates; paper; polymer films; power cables; Kraft paper; PP film; PPLP; breakdown test; dielectric breakdown; electric charge effect; high-voltage transmission systems; impulse breakdown strength; laminated oil-impregnated papers; oil-filled cables; polypropylene laminated paper; positive charge trapping; Cable insulation; Dielectric breakdown; Dielectric losses; Dielectrics and electrical insulation; Electric breakdown; Oil insulation; Paper technology; Petroleum; Propagation losses; 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.1992.247018
