Title :
Lifetime tests on a high ohms/square metalized high crystalline polypropylene film capacitor with application to a Marx modulator
Author :
Kemp, Mark A. ; Burkhart, Craig ; Tang, Tao
Author_Institution :
Power Conversion Dept., SLAC Nat. Accel. Lab., Menlo Park, CA, USA
Abstract :
This paper presents accelerated lifetime tests on a polypropylene film capacitor. Experimental parameters (20% droop, 5 Hz repetition rate) simulate anticipated operating conditions encountered in the SLAC P2 Marx. Elevated film electric field stress is utilized as the acceleration parameter. Results indicate that, for the particular film of interest, a film stress of ~290 V/μm corresponds to a 10´ hour lifetime. In addition, the voltage scaling exponent for this film is 13.1.
Keywords :
modulators; polymer films; power capacitors; pulsed power supplies; Marx modulator; accelerated lifetime tests; crystalline; electric field stress; polypropylene film capacitor; Aging; Capacitors; Electric fields; Films; Lifetime estimation; Modulation; Stress; capacitors; modulators; pulsed power;
Conference_Titel :
Power Modulator and High Voltage Conference (IPMHVC), 2010 IEEE International
Conference_Location :
Atlanta, GA
Print_ISBN :
978-1-4244-7131-7
DOI :
10.1109/IPMHVC.2010.5958442
