Data sets of interlaboratory comparison of alternating and rotational loss measurements in non-oriented Fe-Si Sheets

We report on a comparison performed by four European laboratories [INRIM (Torino), Ampère Lab (Lyon), Politecnico di Torino, and SATIE Lab (Paris Saclay)] regarding the measurement of the magnetic energy losses in non-oriented Fe–Si sheets (physical parameters reported in Table I) under alternating and rotational fields. The laboratories used different Rotational Single Sheet Testers (RSSTs) with independently developed hardware and software tools and methods. Both open and closed magnetic circuits were employed, using circular, cross-shaped, and single-strip samples.