Journal
PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL
Volume 22, Issue 3, Pages 244-249Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.pnsc.2012.04.005
Keywords
Amorphous core; Annealing technique; Reducing core loss; Loss deterioration; Distribution transformer
Funding
- National High-Tech Research and Development Programme [2012AA030301]
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Although amorphous alloy ribbons have lower core loss, serious loss deterioration occurs in amorphous cores constructed from amorphous alloy ribbon for distribution transformer. In the present study, the loss deterioration mechanism and influencing factors of amorphous cores for distribution transformers were investigated. The influence of distributed gaps on core loss of transformer core was calculated by simulation software and validated by experiments. The boron fluctuation of amorphous alloy ribbons affects the annealing temperature of amorphous transformer cores. A superior core annealing technique with annealing parameters was developed, and appreciable decrease in core loss was obtained. (C) 2012. Chinese Materials Research Society. Production and hosting by Elsevier Ltd. All rights reserved.
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