Analysis of thermal field distribution on power transformers

• Autorzy: Łopatkiewicz R. , Nadolny Z.
• Konferencja: Computer Applications in Electrical Engineering 2009 [Poznan, 20-22 April, 2009]
• Języki publikacji: EN

Abstrakty

EN

Analysis of thermal field distribution is one of the diagnostic methods of power transformers. In order to obtain temperature distribution, infrared radiation camera is used. Many defects of transformer are detected using this method. Infrared radiation measurement is simply and wireless way to obtain thermal field distribution, but interpretation of the measurement results is sometimes incorrect. It is caused by some factors, such as infrared emission coefficient, an angle between the camera and infrared radiation emitter, emitter temperature, and distance between the camera and the emitter. The paper presents the influence of the factors on correct interpretation of infrared radiation measurement results. The influence was investigated using some sample of transformer tank. Next, measurements of thermal field distribution on transformers were made to detect defects of transformer. The interpretation of thermal field of transformers considered investigated influence of the factors on correct interpretation.

Słowa kluczowe

EN

thermal field; power transformer; temperature distribution

PL

pole temperatur; transformator mocy; rozkład temperatury

• Wydawca: Wydawnictwo Politechniki Poznańskiej
• Czasopismo: Poznan University of Technology Academic Journals. Electrical Engineering
• Rocznik: 2009
• Tom: No 60
• Strony: 121--129
• Opis fizyczny: Bibliogr. 5 poz.

Twórcy

autor

Łopatkiewicz R.

autor

Nadolny Z.

• Poznań University of Technology

Bibliografia

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• [2] I. R. Funnell, Aspects of thermal monitoring of substation equipment, in: Developments Towards Complete Monitoring and In-Service Testing of Transmission and Distribution Plant, IEE Colloquium on, October 31, 1990.
• [3] R. Yadav, S. Kumar, A. Venkatasami, A.M. Lobo, A.M.Wagle, Condition Based Maintenance of Power Transformer: A Case Study, in: 2008 International Conference on Condition Monitoring and Diagnosis, China- Beijing, April 21-24, 2008.
• [4] P. Laohasongkram, J. Junsiri, J. Oupayaso, Application of Thermal Detector by Infrared for Electrical Arch Furnaces Transformer, in: International Conference on Control, Automation and Systems 2007, Korea- Seoul, October 17-20, 2007.
• [5] M. Weiping, Ch. Fangxiao, S. Ying, X. Chungui, A. Ming, Fault Diagnosis On Power Transformers Using Non-electric Method, in: Industrial Electronics, 2006 IEEE International Symposium on, Canada - Montreal, July 9-12, 2006.