Design and testing PCB Rogowski-coil current sensor for high current application

Abstract

This paper describes the design and testing process of low power current sensors using PCB rogowski-coil for high current application. The design and testing process of PCB rogowski-coil transducer and electronic circuit are explained in deeply analyze based on the physical structure. It also reveals the linearity and error rates of PCB rogowski-coil current sensors. Tests carried out using Current Generator with 5000A maximum output rate and the output of PCB rogowski-coil current sensor is 333mV following IEC-60044-8 standard. Finally, some measures are proposed for the performance improvement of PCB rogowski-coil current sensor to meet the requirements of protective relaying system in terms of structural design and testing standards.