Evaluation of unshielded Rogowski coil for protection purposes

Rogowski coil have attracted more attention for measuring steady state and high transient currents in the last decades. The main reasons for such attention are linearity, widebandwidth, safety, lightness, and low cost of Rogowski coil. In this paper the performance of unshielded Rogowski coil forprotection tasks is studied through experimental investigations. Also, the model of unshielded Rogowski coil is presented and its behavior under different conditions is discussed. Moreover, theeffects of structural parameters of the Rogowski coil on the model’s behavior are presented. Finally, the output responses ofthis transducer under typical current waveforms in protection studies are discussed

کلیدواژه ها:

Rogowski coil ، Frequency response ، Protection systems