Coaxial capacitive voltage divider with high division ratio for high voltage pulses with very fast rise times

Abstract

In this paper, a capacitive voltage divider with a high division ratio of >1∶1000 based on a high voltage coaxial cable and discrete foil capacitors mounted around the cable is investigated. The divider is designed for high voltage pulses up to 200 kV and has a relatively simple and robust design. For the presented voltage divider a circuit model is presented, which is also validated by measurements using a impedance analyzer and by comparisons with HV standard voltage probes.