A new method for the calculation of the hot-spot temperature in power transformers with ONAN cooling

IEEE Transactions on Power Delivery

Volumn 18, Issue 4, 2003, Pages 1284-1292

  Radakovic, Zoran ^a   Feser, Kurt ^a  

^a UNIVERSITY OF STUTTGART   (Germany)

Author keywords

Hot spot temperature; Power transformer thermal factors; Thermal modeling

Indexed keywords

COOLING; DIFFERENTIAL EQUATIONS; MATHEMATICAL MODELS; SHORT CIRCUIT CURRENTS; TEMPERATURE; THERMAL STRESS;

HOT SPOT TEMPERATURE; POWER TRANSFORMERS; SOLID INSULATION; THERMAL MODELING;

ELECTRIC TRANSFORMERS;

EID: 0141986792     PISSN: 08858977     EISSN: None     Source Type: Journal    
DOI: 10.1109/TPWRD.2003.817740     Document Type: Article

References (8)

1. Z. Radakovic, "Numerical determination of characteristic temperatures in directly loaded power oil transformer," Eur. Trans. Elect. Power, vol. 13, pp. 47-54, Jan./Feb. 2003.
2. Z. Radakovic and D. Kalic, "Results of a novel algorithm for the calculation of the characteristic temperatures in power oil transformers," Elect. Eng., vol. 80, pp. 205-214, June 1997.
3. L. W. Pierce, "An investigation of the thermal performance of an oil filled transformer winding," IEEE Trans. Power Delivery, vol. 7, pp. 1347-1358, July 1992.
4. J. Aubin and Y. Langhame, "Effect of oil viscosity on transformer loading capability at low ambient temperatures," IEEE Trans. Power Delivery, vol. 7, pp. 516-524, Apr. 1992.
5. IEC Loading Guide for Oil-Immersed Power Transformers, IEC Std. 60076-7-Power transformers-Part 7, Committee draft 14/403/CD, Oct. 2001.
6. IEC Loading Guide for Oil Immersed Transformers, IEC Std. 60 354, Sept. 1991.
7. Z. Radakovic and Z. Lazarevic, "Novel methods for determining characteristics quantities for developing a thermal model of power transformers," in Proc. 31st Universities Power Eng. Conf., 1996, pp. 481-485.
8. MATLAB Version 6.1.0.450 (R12.1) on PCWIN.