Development and Application of Low-Noise 6.5% Si–Fe Sheet
- 1 March 1967
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 38 (3) , 1087-1089
- https://doi.org/10.1063/1.1709497
Abstract
The effects of composition, magnetic annealing and texture on the magnetic properties, magnetostriction, and core noise of pilot‐produced 6.5% Si–Fe sheet and transformer cores have been studied and the results compared with the core‐loss and core‐noise characteristics of domain‐oriented 2V‐CoFe and cube‐textured 3% Si–Fe transformer cores. The application of magnetic annealing reduced magnetostriction of 6.5% Si–Fe sheet to 1×10−6 at 18 kG. The use of a low‐magnetostriction core material, such as 6.5% Si–Fe, was shown to result in a considerable reduction in transformer core noise, reducing in turn the maximum noise level of a 3‐phase, 400‐Hz, 1250‐VA static inverter to 50 dB in an acoustic frequency range of 0.4–20 kHz.This publication has 3 references indexed in Scilit:
- Controlled Current Feedback in a Static Inverter with Neutralization of HarmonicsIEEE Transactions on Aerospace, 1964
- Technical assessment of 6[fraction one-half]% (wt.) silicon iron for possible application in power transformersProceedings of the Institution of Electrical Engineers, 1964
- Iron-Silicon Alloys Heat Treated in a Magnetic FieldJournal of Applied Physics, 1951