Design of Rogowski Coil on Electronic Current Transformer and Analysis on Dynamic and Static Performance

The measure sensor,Rogowski coil,is the key part of electronic current transformer.According to the analysis of the design principle,the measure relation is educed and a Rogowski coil is designed in this paper.Experiment shows that Rogowski coil has a good linear relation.The analysis of simulation shows that this Rogowski coil not only can measure steady AC current accurately but also has a good performance in describing the transient process of fault current,which has been verified in the dynamic test.So it lays a good foundation for designing a high precision and good dynamic performance electronic current transformer.