Development of 650 kV 2 ns high voltage pulse generator

A compact 650 kV, 2 ns high voltage pulse generator is developed. The specialties in principle and structure are described. It can generate narrow pulse by using a triple resonance pulse transformer and a pulse forming line. A compact conical double winding silicon- steel magnetic core transformer is developed. The circuit of the triple resonance pulse transformer is made up of the transformer, LC tuning circuit and the 27 pF, 30 pulse forming line. The narrow pulse generator is compact and portable. The experimental results show that the compact design is feasible and can deliver more than 650 kV onto a 80 load with 2 ns pulse width when the oil switch is closed.