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

fYear

1992

fDate

7-10 Jun 1992

Firstpage

209

Lastpage

212

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation, Conference Record of the 1992 IEEE International Symposium on

Conference_Location

Baltimore, MD

ISSN

1089-084X

Print_ISBN

0-7803-0649-X

Type

conf

DOI

10.1109/ELINSL.1992.247018

Filename

247018