Title :
High energy density capacitor development at ABB Power T&D
Author :
Connolly, J. ; Dunn, M.
Author_Institution :
ABB Power T&D Ltd., Ellesmere Port, UK
Abstract :
This paper investigates the fundamentals involved in the manufacture of d.c. metallised film capacitors, namely the choice of base film, impregnant and metallisation pattern. Comparative testing of capacitors during production and on accelerated ageing under thermal and electrical stress enable capacitor life to be enhanced by two orders of magnitude from the optimum selection of film type, impregnant medium and electrode configuration. The relative life increases being: >10×life time due to film selection; >2×theoretical life for low loss dielectric liquids; >6×life for the successful design of metallised film electrodes
Keywords :
electrodes; electron device manufacture; electron device testing; impregnated insulation; insulating oils; life testing; metallisation; polymer films; power capacitors; production testing; ABB Power T&D; DC metallised film capacitor manufacture; accelerated ageing; base film; capacitor life enhancement; capacitor testing; electrical stress; electrode configuration; high energy density capacitor development; impregnant; low loss dielectric liquids; metallisation pattern; metallised film electrode design; oils; polypropylene films; thermal stress; Accelerated aging; Capacitors; Dielectric losses; Electrodes; Life estimation; Life testing; Metallization; Production; Pulp manufacturing; Thermal stresses;
Conference_Titel :
Conduction and Breakdown in Solid Dielectrics, 1998. ICSD '98. Proceedings of the 1998 IEEE 6th International Conference on
Conference_Location :
Vasteras
Print_ISBN :
0-7803-4237-2
DOI :
10.1109/ICSD.1998.709238
