Effect of the Addition of Benzotriazole on the Streaming Electrification Properties in Transformer Oil

  • Shin, Jong-Yeol (Department of Car Mechatronics, Sahmyook University) ;
  • Hong, Jin-Woong (Department of Electrical Engineering, Kwangwoon University)
  • Received : 2010.10.16
  • Accepted : 2010.11.30
  • Published : 2010.12.25


Accidents can occur as a result of streaming electrification when transformer oil is used as an insulating oil in large ultra-high voltage transformers. Methods for adding a streaming electrification inhibitor to reduce the streaming electrification has been studied extensively. In this paper, in order to develop a method for reducing streaming electrification effectively, 4 different specimens were prepared by the addition of benzotriazole (BTA) to a virgin specimen with constant stirring. The specimens were examined to determine the appropriate amount of BTA addition that would suppress the streaming electrification most effectively. The results showed that the streaming electrification characteristics of the specimen in the streaming transformer oil were best when the amount of BTA addition was about 10 ppm. The streaming electrification current was reduced by adding 30 ppm BTA until the temperature reached $65^{\circ}C$. The polarity of the streaming electrification current was negative when the temperature exceeded $65^{\circ}C$. Therefore, the streaming electrification current, which can be a cause of transformer accidents, can be suppressed in large ultra high voltage transformer oil. This paper reports on the optimal amount of BTA addition and the best conditions for controlling the streaming velocity of transformer oil.


  1. M. Ikeda, T. Teranishi, M. Honda, and T. Yanari, IEEE Trans. Power App. Syst. PAS-100, 921 (1981) [DOI: 10.1109/TPAS.1981.316952].
  2. T. Watanabe, T. Ishii, N. Yamada, T. Nitta, R. Tamura, and Y. Miura, IEEE Trans. Power App. Syst. PAS-99, 335 (1980) [DOI: 10.1109/TPAS.1980.319644].
  3. T. V. Oommen, IEEE Trans. Electr. Insul. 23, 123 (1988) [DOI: 10.1109/14.2345].
  4. T. V. Oommen and S. R. Lindgren, IEEE Trans. Power Del. 5, 972 (1990) [DOI: 10.1109/61.53110].
  5. M. Ieda, H. Karner, and Y. Suzuoka, Proceedings of the 3rd International Conference on Properties and Applications of Dielectric Materials (Tokyo, Japan 1991 Jul. 8-12) p. 598. [DOI: 10.1109/ICPADM.1991.172129].
  6. M. Yasuda, K. Goto, H. Okubo, T. Ishii, E. Mori, and M. Masunaga, IEEE Trans. Power App. Syst. PAS-101, 4272 (1982) [DOI: 10.1109/TPAS.1982.317391].
  7. P. R. Krishnarmoorthy, S. Vijayakumari, K. R. Krishnaswamy, and P. Thomas, Proceedings of the 3rd International Conference on Properties and Applications of Dielectric Materials (Tokyo, Japan 1991 Jul. 8-12) p. 732. [DOI: 10.1109/ICPADM.1991.172169].
  8. R. M. Radwan, R. M. El-Dewieny, T. D. Aish, and I. A. H. Metwally, 1990 Annual Report/Conference on Electrical Insulation and Dielectric Phenomena (Pocono Manor, PA 1990 Oct. 28-31) p. 642. [DOI: 10.1109/CEIDP.1990.201410].
  9. P. K. Poovamma and R. Jagadish, Conference Record of the 1994 IEEE International Symposium on Electrical Insulation (Pittsburgh, PA 1994 Jun. 5-8) p. 526. [DOI: 10.1109/ELINSL.1994.401402].
  10. M. Windholz and Merck & Co., The Merck Index: An Encyclopedia of Chemicals, Drugs, and Biologicals, 10th ed. (Merck, Rahway, NJ, 1983) p. 1108.
  11. J. A. Palmer and J. K. Nelson, IEEE Trans. Dielectr. Electr. Insul. 3, 70 (1996) [DOI: 10.1109/94.485516].
  12. B. Abedian, J. Electrostatics 14, 35 (1983) [DOI: 10.1016/0304-3886(83)90016-5].
  13. R. M. Hakim, IEEE Trans. Electr. Insul. EI-6, 158 (1971) [DOI: 10.1109/TEI.1971.299171].
  14. L. Peyraque, C. Boisdon, A. Beroual, and F. Buret, IEEE Trans. Dielectr. Electr. Insul. 2, 40 (1995) [DOI: 10.1109/94.368678].
  15. E. Brzostek and J. Kedzia, IEEE Trans. Electr. Insul. EI-21, 609 (1986) [DOI: 10.1109/TEI.1986.348966].

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