A Simple Modelling Procedure of Rogowski Coil for Power Systems Applications

The use of Low-Power Instrument Transformers is spreading among the network and Standards are providing all the necessary information for their usage. However, practical applications adopt such definition with a certain delay (which could be years) with respect to their publication. To this purpose, the paper presents a simple Rogowski modelling procedure, for nonexperts, to predict the Rogowski output when used under nonstandard conditions. In addition, the procedure allows to have a clear knowledge of each device for further testing. Provided measurement results confirm the effectiveness of the proposed procedure.

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