JPEE  Vol.2 No.9 , September 2014
Research on the Differential Protection Algorithm of Multi-Tap Special Transformer
Abstract: Compared with conventional transformers, the rectiformer is special in connection mode, which is multi-tap and not equipped with the differential protection. In this paper, the differential protection algorithm for Multi-tap special transformer was derived. The regulating methods for the rectiformer were studied first, and then the rectiformer model of one electrolytic aluminium plant was built by PSCAD/EMTDC, characteristics of the rectiformer bank were also analyzed. The algorithm was derived on the basis of the per-unit system, and the processing methods of the regulating transformer’s tap position information were proposed. Finally, a contrast of differential protection algorithm between the multi-tap special transformer and the conventional transformer was made.
Cite this paper: Huang, M. , Dong, L. , Zhang, J. , Wang, J. and Hao, Z. (2014) Research on the Differential Protection Algorithm of Multi-Tap Special Transformer. Journal of Power and Energy Engineering, 2, 98-105. doi: 10.4236/jpee.2014.29014.

[1]   Hu, G.R. (2008) Structural Characteristics of Common Patterns of Rectifier Transformer. Transformer, 45, 7-12.

[2]   Wei, Q. (2011) Exploration of Roaster Exhaust Directly to Pre-Carbonation Decoomposition. Shanxi Metallurgy, 34, 39-54.

[3]   Geng, Q.L. (2007) Bang-Bang Protection of High Power Rectification Voltage Transoformer. China Chlor-Alkali, 6, 27-29.

[4]   Kang, T.Y. (2006) Protection of High-Power Rectiformer. Electric Time, 3, 74-75.

[5]   Cui, L.J. (1996) Theory and Design of Special Transformers. Scientific and Technical Documentation Press, Beijing.