A 350 kV dual resonant transformer for charging a 40 pF PFL at kilo-Hertz rep-rates

A dual resonant transformer, capable of charging a 40 pF pulse forming line to 350 kV, has been developed. Peak repetition rates of two kHz have been obtained with the use of a self-break high pressure hydrogen spark gap switch. The primary energy store of the device consists of 17.6 nF at 30 kV. This paper discusses the design of the transformer, the development of the high pressure hydrogen switch, and the use of a high pressure SF/sub 6/ environment to house the pulse transformer. Also the method used to repetitively charge the primary energy store is presented. Data obtained under rep-rate operation are shown to illustrate repeatability of the self break voltage and the subsequent output voltage pulse of the transformer.