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A Case Study: Diagnostic Testing of 16 MVA Power Transformer

Ketan C. Gohil, Jatin J. Patel, Niraj Solanki


In this study describes the industrial research of tan delta test of power transformer (16 MVA 33/11 kV). In diagnostic test measurement, we check the insulation quality of power transformer. Transformer insulation quality is tested by insulation resistance test, tan delta and dissipation factor testing. In this article, we discussed about transformer tan delta test and comparison of transformer tan delta test result of after and before overhauling process. This study also gives research about tan delta test setup, testing techniques with different types of modes and discussion of testing result.


Keywords: Transformer, diagnostic testing, capacitance, dissipation factor

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ShuangzanRen, Xu Yang, Wenhu Yang, Baofeng Xi and Xiaolong Cao, "Research on Insulation Condition Monitoring System for Power Transformers," 2008 International Conference on Condition Monitoring and Diagnosis, Beijing, 2008, pp. 1005-1007. doi: 10.1109/CMD.2008.4580451

B. D. Malpure and K. Baburao, "Failure analysis & diagnostics of power transformer using dielectric dissipation factor," 2008 International Conference on Condition Monitoring and Diagnosis, Beijing, 2008, pp. 497-501. doi: 10.1109/CMD.2008.4580334

Reference Manual and application guide of delta 4000.

P. Rozga and A. Skowron, "Changing the dielectric dissipation factor of transformer fluid based on synthetic ester in the condition of a concentrated heat flux," 2012 International Conference on High Voltage Engineering and Application, Shanghai, 2012, pp. 651-654.

doi: 10.1109/ICHVE.2012.6357103

D. M. Robalino and R. E. Alvarez, "From frequency domain to temperature domain of transformer liquid insulation," 2014 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), Des Moines, IA, 2014, pp. 638-642. doi: 10.1109/CEIDP.2014.6995909

H. Peng, M. Dong, M. Ren, J. Miao and Z. Zhang, "Insulation diagnosis for 220kV oil-immersed current transformer by frequency dielectric spectroscopy," 2011 Electrical Insulation Conference (EIC)., Annapolis, MD, 2011, pp. 69-73. doi: 10.1109/EIC.2011.5996118.



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