Lifetime test platform for repetitive capacitors

In order to test the capacitors lifetime at different voltage under short circuit, a lifetime test platform is designed based on resonant charge and pulsed transformer and discharge switch. The platform has met the following design specifications on the 2.5 nF capacitor: more than 100 kV output voltage, about 7 kA discharge current, 50 Hz repetition frequency and up to 5 min runtime. The platform is controlled by a PC and can record runtime automatically.