Rogowski Coil Design for the Measurement of High Voltage Harmonics

Abstract

National and international standards include requirements for harmonics at sub-transmission voltages. In order to prepare for future requirements at high voltages, a device for measuring these harmonics is studied. It computes the voltage harmonic content through the current consumed by the installed capacitive voltage transformers. For that, it is proposed a custom designed Rogowski coil capable of measuring very low currents, and of working in presence of high electric fields.