| 摘要 |
PROBLEM TO BE SOLVED: To provide a grain oriented silicon steel sheet for low-noise transformer with which noise can be effectively reduced by satisfying optimum low magnetostriction characteristics in medium and high magnetic fields. SOLUTION: In the silicon steel sheet for low-noise transformer, the value of λB at 1.0<=B<=1.5 is <=0.3×10-6 and also the value of λB at 1.5<B<=1.9 is <=0.5×10-6 when λB represents the magnetostriction (p-p value) when excited magnetic flux density is BT. |
