Calorimetric measurement and modelling of iron losses in a Silicon Iron current sensor

Article type: Research Article

Authors: Dhahbi, Hakim^{a; b;} | Gallot-Lavallee, Olivier^a | Kedous-Lebouc, Afef^a | Mas, Patrick^b | Geoffroy, Olivier^a | Buffat, Sebastien^b

Affiliations: [a] Université Grenoble Alpes, CNRS, Grenoble INP, G2Elabm, Grenoble, France | [b] Schneider Electric, Eybens, France

Correspondence: [*] Corresponding author: Hakim Dhahbi, Université Grenoble Alpes, CNRS, Grenoble INP, G2Elab 38000 Grenoble, France; Schneider Electric, F-38320 Eybens, France. E-mail: hakim.dhahbi@g2elab.grenoble-inp.fr

Abstract: In this paper, the magnetic losses of a supply current sensor dedicated to circuit breakers are investigated. Measurements were performed using an accurate calorimeter covering a measurement range of [1 mW; 10 W]. Several frequencies and voltages were tested. A model of the sensor’s core material (NO SiFe sheet M250-50A) was built with the Loss Surface (LS) dynamic hysteresis model and implemented in a 3D FEM computation tool. The sensor was simulated and iron losses were computed. Comparison between experiments and simulation shows a high concordance that leads to conclude about the reliability of the LS model.

Keywords: Iron losses, current sensor, Silicon Iron magnetic steel, circuit breaker, modelling and experiment, Epstein bench

DOI: 10.3233/JAE-171022

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 59, no. 2, pp. 473-482, 2019