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Design of equivalent coils for anti- interference testing of heavy current transformers

Gao, Y.C; Zhao, W; Qu, K.F.; Li, H.; Shao, H.M.; Wang, Qing; Huang, Songling

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Authors

Y.C Gao

W Zhao

K.F. Qu

H. Li

H.M. Shao

Songling Huang



Abstract

Heavy current transformers (HCTs) for large generators are intensively interfered by the stray magnetic field produced by heavy adjacent currents, and therefore, anti-interference testing is a crucial process to assure the robustness of HCT products. However, the generation of the interference involves multiphase heavy currents, which are difficult to produce in testing environments, and equivalent testing coils have become an emerging solution to the testing. In this paper, an improved parameter determination algorithm is proposed for the traditional two-segment testing coil configuration, and furthermore, a novel multi-segment testing coil configuration is proposed for better equivalence of the multiphase interference. The effectiveness of the two configurations are thoroughly analyzed by FEM-based simulations as well as physical experiments.

Citation

Gao, Y., Zhao, W., Qu, K., Li, H., Shao, H., Wang, Q., & Huang, S. (2018). Design of equivalent coils for anti- interference testing of heavy current transformers. International Journal of Applied Electromagnetics and Mechanics, 56(2), 211-223. https://doi.org/10.3233/jae-170052

Journal Article Type Article
Acceptance Date Nov 22, 2017
Online Publication Date Jan 27, 2018
Publication Date Jan 27, 2018
Deposit Date Mar 4, 2018
Publicly Available Date Mar 27, 2018
Journal International Journal of Applied Electromagnetics and Mechanics
Print ISSN 1383-5416
Electronic ISSN 1875-8800
Publisher IOS Press
Peer Reviewed Peer Reviewed
Volume 56
Issue 2
Pages 211-223
DOI https://doi.org/10.3233/jae-170052

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