Study and characterization of a Rogowski coil with superparamagnetic magnetite core

Abstract

In this paper, we investigate the performances of Rogowski coils with superparamagnetic core. Rectangular cross-section cores are built by a 3D printer and filled up with magnetite nanopowder. The study of the mutual inductance between the current sensor and the primary circuit is carried out through the mutual partial inductance method. Comparison with air core Rogowski coil having the same geometry is developed for different current intensity and operating frequency

Effects of Multiple Influence Quantities on Rogowski-Coil-Type Current Transformers

“…The use of Rogowski coil is typical among utilities and DSOs for various applications [15][16][17][18]; furthermore, literature has been and is very vivid about their study. In particular, their modelling [19,20] is a current and broad topic along with the design of new possible and innovative solutions [21,22]. Furthermore, in light of their massive deployment among the network, the evaluation and assessment of their accuracy is a paramount aspect [23,25], tackled in this work.…”

Smart Characterization of Rogowski Coils by Using a Synthetized Signal

“…In terms of accuracy, the standard IEC 61869-10 [39] provides some guidelines to assess LPCTs, while in [40][41][42][43] their performance is evaluated for different operating conditions.…”