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Journal of Emerging Trends in Engineering and Applied Sciences (JETEAS)


Article Title: Distribution Transformer with Multi-Stepped Amorphous-Core
by Man Mohan

Distribution transformers are designed to have low core losses; therefore they are designed with low value of flux density for cold rolled grain oriented (CRGO) steel. Amorphous alloy is being seen as a good substitute of CRGO steel as it has very less core losses. In amorphous core transformers, manufacturers are adopting a square or rectangular section of core, for which cost of copper winding is more and radial electromagnetic forces are non-uniform. Here, amorphous core transformer with circular multi-stepped section of core is presented and compared with conventional CRGO core transformer and square-sectioned amorphous core transformer in terms of efficiency, cost and radial forces. An effort is being made to show that, circular multi stepped section of core is a better choice in place of square section of core, for amorphous core transformer. If a multi stepped section of core is adopted in place of square section for an amorphous core transformer, the efficiency improves, cost reduces and radial forces in windings become uniform.
Keywords: amorphous-core, CRGO steel, distribution transformer, transformer design, core losses
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ISSN: 2141-7016

Editor in Chief.

Prof. Gui Yun Tian
Professor of Sensor Technologies
School of Electrical, Electronic and Computer Engineering
University of Newcastle
United Kingdom



Copyright © Journal of Emerging Trends in Engineering and Applied Sciences 2010