I. Introduction
Amorphous metal core transformers improve electrical power distribution efficiency by reducing transformer core losses [1]. The loss reduction ranges from 65 to 90 % over silicon steel-based transformers under sinusoidal load conditions. These efficiency improvements result in reduced power generation that is accompanied by reduced emission of environmentally sensitive gases such as , etc. Viewed from this perspective, a 2000 kV A transformer with an amorphous metal core operated under 50 % load condition represents a lifetime reduction of about 960 metric tons in emissions [2].