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


Article Title: Investigations on Design of 400-KVA Distribution Transformer with Amorphous-Core and Amorphous-CRGO Core
by Man Mohan and Puneet Kumar Singh

Amorphous-core distribution transformers are energy efficient transformers, they are in developing stage. In case of amorphous-core transformers, high cost is a problem for a designer. Overall cost of an amorphous-core distribution transformer is 20 to 30 percent higher than that of a conventional transformers; in conventional transformers cold rolled grain oriented steel (CRGO) is used as a core material. Cost of a transformer depends on different design parameters; the shape and size of a core cross-section are significant parameters among them. Here, some investigations are being presented on a 400 KVA distribution transformer with different types of core cross-sections for amorphous-core and amorphous-CRGO cores, in terms of cost, efficiency and Break-even point. It has been shown that, with 4-stepped amorphous-CRGO core, the cost of the transformer reduces and Break-even point also comes lower.
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