Design and experimental study of pulse forming network

A high energy density midium-high voltage pulse forming network(PFN) was designed with low self-inductance ceramic capacitors. Each capacitor has a measured capacitance of around 1.7 nF. The capacitors are made from a very high dielectric constant barium titanate dielectric mix, normally used to make high-voltage capacitors, and are 6 cm in diameter and 4 cm in thickness. Electrical strength tests carried out on the tiles has shown that the tiles can withstand an electric stress of at least 50 kV, provided that the tiles are submerged in transformer oil. The experimental results indicate that the rise time of the high voltage pulse is less than 40 ns, the pulse width is about 220 ns when the matched load is 1 Ω for flat(single-layered) and cuboid(double-layered) 6-line L-C PFNs. The cuboi