Condition evaluation in monitoring systems of traction substations power transformers

Authors

  • С. П. Денисюк National Technical University of Ukraine «Kyiv Polytechnic Institute», Ukraine
  • І. В. Притискач National Technical University of Ukraine «Kyiv Polytechnic Institute», Ukraine

DOI:

https://doi.org/10.15802/etr.v0i7.42293

Keywords:

monitoring, power transformer, state assessment, electricity supply system, thermal model, load capacity, water content model

Abstract

Malfunction of power transformers directly affect the reliability of the power system as a whole, which explains the high demands placed on their reliability. To detect defects in transformers at an early stage of development the most effective are continuous monitoring system that evaluates the current state. This article examines the possibility of using different models of the physical processes that affect the state of the transformer as part of the monitoring system. The most commonly damaged part is transformer insulation system that suffers from the thermal, electrical and mechanical influences. As thermal model for use in the monitoring of power transformer may be proposed a model described in the standard IEC and IEEE, and a more accurate models described in the modern works. To assess the residual life and the admissibility of certain modes of load monitoring system is proposed to use a more accurate, compared to deterministic, stochastic models of processes in transformer.

Author Biographies

С. П. Денисюк, National Technical University of Ukraine «Kyiv Polytechnic Institute»

Інститут енергозбереження та енергоменеджменту

І. В. Притискач, National Technical University of Ukraine «Kyiv Polytechnic Institute»

Інститут енергозбереження та енергоменеджменту

References

C57.143-2012. IEEE Guide for Application for Monitoring Equipment to Liquid-Immersed Transformers and Components. – 2012. – 83 p.

Живодерников С.В., Овсянников А.Г., Русов В.А. Зарубежный опыт мониторинга состояния мас-лонаполненного оборудования // Материалы четвер-того научно-практического семинара Общественного Совета специалистов Сибири и Востока по про-блемам мониторинга трансформаторного оборудо-вания и диагностики электрических установок, Белокуриха, 20-24 апреля 2009. – Новосибирск, ГЦРО, 2009. – С.7–22.

Киш Л. Нагрев и охлаждение трансформаторов – М: Энергия, 1980. – 208 с.

ГОСТ 14209-97. Руководство по нагрузке си-ловых масляных трансформаторов. – Введений з 01.01.2002. – 82 с.

G. Swift, T. S. Molinski, W. Lehn, A fundamental approach to transformer thermal modeling – Part I: Theory and equivalent circuit // IEEE Trans. Power Del. – vol. 16, № 2. – 2001. – P. 171–175.

D. Susa, M. Lehtonen, H. Nordman. Dynamic thermal modeling of power transformers // IEEE Trans. Power Del. – vol. 20, №. 1. – 2005. – P.197–204.

Montsinger V.M. Loading transformers by tem-perature // Trans.-Amer. Inst. elekctr. Eng. – 19(1930) – №3. – P. 776-790.

Денисенко М.А. Спеціальні питання електро-постачання – К.: НТУУ «КПІ», 2009. – Ч. 1.: Вибір елементів електропостачальних систем на основі стохастичного моделювання процесів, що відбува-ються в них. – 288 с.

Денисенко М.А., Притискач І.В. Стохастичне оцінювання навантажувальної здатності силових масляних трансформаторів // Промелектро. – 2011. – №1. – C. 25–31.

J. Fabre, A. Pichon. Deteriorating Processes and Products of Paper in Oil. Application to Transformers. – International Conference on Large High Voltage Electric System (C1GRE), Paris, France. – Paper 137. – 1960.

IEEE Std 62-1995, IEEE Guide for Diagnostic Field Testing of Electric Power Apparatus – Part 1: Oil Filled Power Transformers, Regulators and Reactors.

IEEE Std C57.106, Guide for Acceptance and Maintenance of Insulating Oil Equipment.

B. García, J. C. Burgos, Á. Alonso, J. Sanz. A moisture-in-oil model for power transformer monitoring - Part I: Theoretical foundation // IEEE Transactions on Power Delivery – vol. 20, № 2 – 2005. – P. 1417 – 1422.

T. V. Oommen, Moisture equilibrium in paper-oil insulation systems // Proc. Electrical/Electronics Insulation Conf. – Chicago, IL. – 1983.

REFERENCES

C57.143-2012. IEEE Guide for Application for Monitoring Equipment to Liquid-Immersed Transformers and Components. – 2012. – 83 p.

Zhyvodernykov S., Ovseannicov A., Russov V. Foreign experience of oil-filled equipment condition monitoring // Proceedings of the Fourth Scientific Workshop of the Public Council of the East Siberia and specialists on monitoring and diagnosis of transformer equipment electrical installations Belokuriha, 20-24 April 2009. – Novosibirsk, HTSRO, 2009. – P.7–22.

L. Kish. Transformers heating and cooling - M: Energy, 1980. - 208 p.

GOST 14209-97. Loading guide for oil-immersed power transformers. – Introdused in 01.01.2002. - 82 p.

G. Swift, T. S. Molinski, W. Lehn, A fundamental approach to transformer thermal modeling – Part I: Theory and equivalent circuit // IEEE Trans. Power Del. – vol. 16, № 2. – 2001. – P. 171–175.

D. Susa, M. Lehtonen, H. Nordman. Dynamic thermal modeling of power transformers // IEEE Trans. Power Del. – vol. 20, №. 1. – 2005. – P.197–204.

Montsinger V.M. Loading transformers by tem-perature // Trans.-Amer. Inst. elekctr. Eng. – 19(1930) – №3. – P. 776-790.

Denisenko M. Special issue of power supply. Se-lection of items of electricity supply systems based on stochastic modeling of processes occurring in them. – K.: NTU "KPI”, 2009. – 288 p.

Denisenko M., Prytyskach І. Stochastic estima-tion of power oil transformer loading capacity // Pro-melektro. - 2011. - №1. - p. 25-31.

J. Fabre, A. Pichon. Deteriorating Processes and Products of Paper in Oil. Application to Transformers. – International Conference on Large High Voltage Electric System (C1GRE), Paris, France. – Paper 137. – 1960.

IEEE Std 62-1995, IEEE Guide for Diagnostic Field Testing of Electric Power Apparatus – Part 1: Oil Filled Power Transformers, Regulators and Reactors.

IEEE Std C57.106, Guide for Acceptance and Maintenance of Insulating Oil Equipment.

B. García, J. C. Burgos, Á. Alonso, J. Sanz. A moisture-in-oil model for power transformer monitoring - Part I: Theoretical foundation // IEEE Transactions on Power Delivery – vol. 20, № 2 – 2005. – P. 1417 – 1422.

T. V. Oommen, Moisture equilibrium in paper-oil insulation systems // Proc. Electrical/Electronics Insulation Conf. – Chicago, IL. – 1983.

Published

2015-05-07

Issue

Section

Power Supply