Assessing the Feasibility of Using Amorphous Steel in the Magnetic Cores of Transformer-Rectifier Units for Aircrafts

Transformer-rectifier units with magnetic cores made of amorphous steel are investigated. The specific features pertinent to application of amorphous alloys are shown, and their comparative analysis is carried out. Experimentalsamplesoftwo types of transformer-rectifier unitswith the magnetic core made of different amorphous steels have been fabricated. The thermal processes occurring in transformer-rectifier units with the magnetic core made of amorphous steel are simulated on a computer. Specific losses in the magnetic core are experimentally investigated. The results obtained from the performed tests show that transformers with magnetic cores made of amorphous steel only slightly outperform the transformers with magnetic cores made of precision magnetically soft materials or electrical steels in terms of mass and dimensional indicators.