Evaluation of new fluid impregnated all film power capacitor performance

Author

Cesari, S. ; Sciarra, S. ; Colla, F. ; Scarafiotti, P.

Author_Institution

ENEL, Italy

fYear

1996

fDate

15-19 Jul 1996

Firstpage

397

Lastpage

400

Abstract

The paper gives the results of the experiments performed in order to evaluate the performance of new fluid impregnated all film power capacitors. For all fluids used the trends of the main dielectric properties of the capacitors are reported. The results of tests carried out to check the capacitor ability to withstand both transient and long duration overvoltages in combination with thermal stresses are also given and discussed. The tests proved that with the new fluids it is possible to make reliable all film capacitors with working voltage gradient higher than 55-60 V/μm

Keywords

composite insulating materials; insulating oils; insulation testing; life testing; organic insulating materials; overvoltage; partial discharges; polymer films; power capacitors; thermal stresses; ageing tests; dielectric properties; dissipation factor; fluid impregnated all film power capacitor; long duration overvoltages; partial discharge inception voltage; polypropylene film; power capacitor performance; thermal stresses; transient overvoltages; working voltage gradient; Dielectrics; Partial discharges; Performance evaluation; Permittivity; Power capacitors; Surges; Temperature; Testing; Thermal stresses; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Conduction and Breakdown in Dielectric Liquids, 1996, ICDL '96., 12th International Conference on

Conference_Location

Roma

Print_ISBN

0-7803-3560-0

Type

conf

DOI

10.1109/ICDL.1996.565537

Filename

565537