Work

Evaluation of Mechanical Stability, and Magnetic and Acoustic Properties of a Transformer Core Made of Amorphous Steel Consolidated with a Silane-Based Hybrid Binder

Year: 2025

Type: article

Abstract: The ongoing electrification process also requires improvements in the efficiency of power transmission devices, such as transformers, the main part of which is the magnetic core. Despite great progress in the development of core material, losses and audible noise during their operation is still a critical issue to be solved. Currently, a magnetic material used to produce the transformer core is amorphous steel, which is gaining popularity. Compared to traditionally used grain-oriented silicon electrical steel, a significantly larger number of very thin amorphous ribbons is needed to produce the core, which is due to the fact that they are about an order of magnitude thinner, making mechanical stability a challenge. The presented article describes the preparation of a hybrid binder for amorphous steel based on the two types of silanes, tetraethyl orthosilicate and 1,2-bis(triethoxysilyl)ethane, for which their anticorrosive character and good dielectric properties were confirmed. Using the obtained binders, model toroidal cores were produced and their magnetic and acoustic properties were tested. The obtained results indicate that the applied silane-based hybrid binders improved important functional properties by reducing the magnetic no-load losses and audible noise.

Source: Applied Sciences

DOI: 10.3390/app15095141

Authors: Jolanta Nieroda, Grzegorz Kmita, Michal Kozupa, Szymon Piela, Maciej Sitarz, Andrzej Rybak

Institutions: ABB (Poland), Hitachi (Japan), AGH University of Krakow

Language: English

Topic: Magnetic Properties and Applications

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

SDG: Industry, innovation and infrastructure

Open Access status: gold

Estimated APC paid: $2,896