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

Hakim Dhahbi (1) , Olivier Gallot-Lavallee (1) , Afef Kedous-Lebouc (1) , Patrick Mas (2) , Olivier Geoffroy (1) , Sebastien Buffat (2)

1 G2ELab - Laboratoire de Génie Electrique de Grenoble
2 SE - Schneider Electric

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 c onclude about the reliability of the LS model.

Mots clés: Iron losses; current sensor; Silicon Iron magnetic steel; circuit breaker; modelling and experiment; Epstein bench

Domaines: Energie électrique

Hakim Dhahbi, Olivier Gallot-Lavallee, Afef Kedous-Lebouc, Patrick Mas, Olivier Geoffroy, et al.. Calorimetric measurement and modelling of iron losses in a Silicon Iron current sensor. International Journal of Applied Electromagnetics and Mechanics, 2019, 59 (2), pp.473--482. ⟨10.3233/JAE-171022⟩. ⟨hal-02350921⟩