Reducing the core loss of amorphous cores for distribution transformers

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 transfo...

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Bibliographic Details
Published in:Progress in natural science 2012-06, Vol.22 (3), p.244-249
Main Author: Deren Li, Liang Zhang, Guangmin Li, Zhichao Lu, Shaoxiong Zhou China Iron & Steel Research Institute Group, Advanced Technology and Materials Co., Ltd., No. 76, Xueyuan Nan Rd., Haidian District, Beijing 100081, China
Format: Article
Language:English
Subjects:
Amorphous
Amorphous core
Annealing
Annealing technique
core
deterioration
Distribution
Distribution transformer
loss
Loss deterioration
Reducing
Reducing core loss
technique
transformer
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Summary: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.
ISSN:1002-0071
DOI:10.1016/j.pnsc.2012.04.005