Title :
Evaluation of new fluid impregnated all film power capacitor performance
Author :
Cesari, S. ; Sciarra, S. ; Colla, F. ; Scarafiotti, P.
Author_Institution :
ENEL, Italy
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;
Conference_Titel :
Conduction and Breakdown in Dielectric Liquids, 1996, ICDL '96., 12th International Conference on
Conference_Location :
Roma
Print_ISBN :
0-7803-3560-0
DOI :
10.1109/ICDL.1996.565537
