Linear transformer and primary low-inductance switch and capacitor modules for fast charging of PFL

5th International Congress on Energy Fluxes and Radiation Effects 2016

Bykov, Yu A.^1 ; Krastelev, E.G.^1 ; Popov, G.V.^1 ; Sedin, A.A.^1 ; Feduschak, V.F.^1

Joint Institute for High Temperatures, Russian Academy of Sciences, st. Izhorskaya 13/19, Moscow

125412, Russia^1

关键词: Charging voltage;    Equivalent parameters;    Ferromagnetic cores;    High currents;    Low inductance;    Low inductance switches;    Powering systems;    Pulse forming lines;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/830/1/012021/pdf
DOI  :  10.1088/1742-6596/830/1/012021

来源: IOP

【 摘 要 】

A step-up linear pulse transformer and a modular primary powering system were developed for fast (≈350 ns) charging of a pulse forming line (PFL) of a high-current electron accelerator. The linear transformer is assembled of a set of 20 inductors with circular ferromagnetic cores and one-turn primary windings. The secondary turn is formed by housing tube walls and a voltage adder with a film-glycerol insulation installed inside of the inductors. The primary powering system assembles 10 modules, each of them is a low-inductance site of two capacitors of 0,35 μF and one gas switch mounted at the same enclosure. The total stored energy is 5.5 kJ at the charging voltage of 40 kV. According to test results, the equivalent parameters at the output of the transformer are the next: a capacity - 17.5 nF, an inductance - 2 μH, a resistance - 3.2 Ohms.