Transformer cores made of amorphous metals have lower core losses than conventional cores made from silicon steel plates, making them more energy efficient. “Amorphous alloys have a very high ...

According to the final rule, transformer cores will now be required to be made with 75% amorphous steel — down from its originally proposed 95% requirement. Manufacturers will also have five ...

Instead of the originally proposed 95%, transformer cores will now only have to be made up of 75% amorphous steel. Manufacturers will also have five years, rather than three, to comply.