BASIC MODULE FOR MAGNETIC CORE OF AN ELECTRICAL TRANSFORMER, MAGNETIC CORE COMPRISING SAID BASIC MODULE, METHOD FOR MANUFACTURING SAID MAGNETIC CORE, AND TRANSFORMER COMPRISING SAID MAGNETIC CORE

摘要

Disclosed is a basic module of a magnetic core of a wound electrical transformer. The basic module includes first and second windings placed atop one another and made of first and second materials, respectively. The first material is a crystal having a saturation magnetization ≧1.5 T and magnetic losses less than 20 W/kg in sine waves having a frequency of 400 Hz, for maximum induction of 1 T, and the second material is a material having an apparent saturation magnetostriction less than or equal to 5 ppm and magnetic losses less than 20 W/kg in sine waves having a frequency of 400 Hz, for maximum induction of 1 T. The cross-sections of the first winding and cross-sections of the second winding satisfy (S₁/(S₁+S₃); S₂/(S₂+S₄)) of the first material, having a high saturation magnetization, compared to the cross-section of both materials together, is 2%-50%.