Development of a Measurement Setup for High Impulse Currents

The understanding of high-current events such as short-circuit transients and impulse currents is important for power quality management. The work carried out and presented in this paper is focused on the characterization of commercial current transducers for traceable on-site measurements of 8/20 mu s (rise/fall time) impulse currents up to 50 kA peak value with a target uncertainty of 0.1% for the complete measurement system. The investigation method consists of using two current transducers based on different technologies that will detect simultaneously the same impulse current.