Computer analysis of temperature influence on thermal conductivity of windings insulation of transformer

• Autorzy: Łopatkiewicz R. , Nadolny Z. , Przybyłek P
• Języki publikacji: EN

Abstrakty

EN

Thermal conductivity of windings insulation has significant influence on temperature distribution in power transformer. It means that the conductivity has the influence on aging process of transformer insulation and acceptable load of transformer. Feedback is between temperature and thermal conductivity. So, the solution, obtained using iteration method, should be used, in order to determine temperature distribution in power transformer in details. The paper presents the influence of temperature on thermal conductivity of windings insulation of power transformer and iteration solution of relationship between the conductivity and temperature.

Słowa kluczowe

EN

thermal conductivity; transformer; windings; isolation; temperature distribution

PL

przewodnictwo cieplne; transformator; uzwojenia; izolacja; rozkład temperatury

• Wydawca: Wydawnictwo Politechniki Poznańskiej
• Czasopismo: Poznan University of Technology Academic Journals. Electrical Engineering
• Rocznik: 2011
• Tom: No. 65
• Strony: 111--121
• Opis fizyczny: Bibliogr. 11 poz., rys.

Twórcy

autor

Łopatkiewicz R.

• Poznan University of Technology

autor

Nadolny Z.

• Poznan University of Technology

autor

Przybyłek P

• Poznan University of Technology

Bibliografia

• [1] PN-IEC 60354 Guide of Oil Transformers (in Polish).
• [2] Jezierski E., Transformers. Design and Structure, Science - Technical Publishers, edition II, Warsaw, 1963 (in Polish).
• [3] Pinkiewicz I., Kaźmierski M., Olech W., Malinowski J., Sopocki R., On-site Processing of Insulation System of Large Power Transformers and Hot-spot Computer Determination, CIGRE, Session 2004, A2-208.
• [4] Zhou L.J., Wu G.N., Yu J.F., Zhang X.H., Thermal Overshoot Analysis for Hot-Spot Temperature Rise of Transformer, IEEE Transactions on Dielectrics and Electrical Insulation, Volume 14, Number 5, ISSN 1070-9878, 2007.
• [5[ Jezierski E., Transformers. Theoretical Fundamentals, Science - Technical Publishers, edition II, Warsaw, 1965 (in Polish).
• [6] Saha T.K., Purkait R, Understanding the Impacts of Moisture and Thermal Ageing on Transformer's Insulation by Dielectric Response and Molecular Weight Measurements, IEEE Transactions on Dielectrics and Electrical Insulation, Volume 15, Number 2, ISSN 1070-9878, 2008.
• [7] PN-EN 60076-2, Transformers. Temperature Increases, 2001 (in Polish).
• [8] Hobler T., Heat Transfer and Heat Exchange, Warsaw, Science – Technical Publishers, Warsaw, 1986 (in Polish).
• [9] Wiśniewski S., Wiśniewski T.S., Heat Transfer, Science - Technical Publishers, Warsaw, 2000 (in Polish).
• [10] Siciński Z., Insulating Materials, Science - Technical Publishers, Warsaw, 1965 (in Polish).
• [11] Imhof A., Insulating Materials in High Voltage Engineering, Science - Technical Publishers, Warsaw, 1963 (in Polish).