Advertisement

Power Technology and Engineering

, Volume 45, Issue 1, pp 76–81 | Cite as

Contamination of the transformer oil of power transformers and shunting reactors by metal-containing colloidal particles

  • S. Yu. L’vov
  • V. B. Komarov
  • V. N. Bondareva
  • A. F. Seliverstov
  • E. O. Lyut’ko
  • Yu. N. L’vov
  • B. G. Ershov
Article
  • 158 Downloads

The results of a measurement of the contamination of the oil in 66 transformers by metal-containing colloidal particles, formed as a result of the interaction of the oil with the structural materials (the copper of the windings, the iron of the tank and core etc.), and also the results of measurements of the optical turbidity of the oil in 136 transformers when they were examined at the Power Engineering Research and Development Center Company are presented. Methods of determining the concentration of copper and iron in transformer oil are considered. The limiting values of the optical turbidity factors, the copper and iron content are determined. These can serve as a basis for taking decisions on whether to replace the silica gel of the filters for continuously purifying the oil of power transformers and the shunting reactors in addition to the standardized oil contamination factors, namely, the dielectric loss tangent and the acidity number of the oil.

Keywords

transformer oil metal-containing colloidal particles optical turbidity methods of determining the concentrations of metals in transformer oil 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    M. Yu. L’vov, “Colloidal-dispersed processes in high-voltage hermetic leads of transformers,” Élektr. Stantsii, No. 4 (2000).Google Scholar
  2. 2.
    Systematic Indicators in Determining the Optical Turbidity of the Transformer Oil of the Hermetic Leads of 110 kV and Higher Power Transformers and Shunting Reactors [in Russian], Izd. JSC “Énergeticheskie Tekhnologii,” Moscow (2007). Approved JSC RAO “ÉEC Rossii” VI_21_2007.Google Scholar
  3. 3.
    A. Vita, P. R. T. Patrocinio, S. A. Godinko, et al., The Effect of Passivator Additive Used in Transformers and Reactors Mineral Oil to Neutralize the Sulfur Corrosion and Its Influence on Low Thermal Defect, CIGRE-2008, A2-215.Google Scholar
  4. 4.
    RD 153–34.0-46.302-00. Systematic Indicators in the Diagnostics of Developing Defects of Transformer Equipment from the Results of a Chromatography Analysis of the Gases Dissolved in the Oil [in Russian], Moscow (2001).Google Scholar
  5. 5.
    State Standard GOST R 51637–2000. Premixes. Methods of Determining the Mass Fraction of Microelements (Manganese, Iron, Copper, Zinc, and Cobalt) [in Russian].Google Scholar
  6. 6.
    State Standard GOST 24523.3–80. Electrical Engineering Periclase. Methods of Determining Iron Oxide [in Russian].Google Scholar
  7. 7.
    State Standard GOST 2642.5–97. Interstate Standard. Refractory Materials and Raw Materials. Methods of Determining Iron Oxide (III ) [in Russian].Google Scholar
  8. 8.
    V. A. Kireev, A Course in Physical Chemistry [in Russian], Khimiya, Moscow (1975).Google Scholar
  9. 9.
    R. A. Lipshtein and M. I. Shakhnovich, Transformer Oil [in Russian], Énergoatomizdat, Moscow (1983).Google Scholar
  10. 10.
    SO 34.45.51.300–97. The Extent and Standards of Tests on Electrical Equipment [in Russian].Google Scholar

Copyright information

© Springer Science+Business Media, Inc. 2011

Authors and Affiliations

  • S. Yu. L’vov
    • 1
  • V. B. Komarov
    • 2
  • V. N. Bondareva
    • 2
  • A. F. Seliverstov
    • 2
  • E. O. Lyut’ko
    • 3
  • Yu. N. L’vov
    • 3
  • B. G. Ershov
    • 2
  1. 1.LLC “Presselektro”MoscowRussia
  2. 2.A. N. Frumkin Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences (IFCE of RAS)MoscowRussia
  3. 3.JSC “R&D Centre for Power Engineering”MoscowRussia

Personalised recommendations