Temperature responses to step changes in the load current of power transformers

IEEE Transactions on Power Delivery

Volumn 18, Issue 4, 2003, Pages 1110-1117

  Nordman, Hasse ^a   Rafsback, Niclas ^a   Susa, Dejan ^b  

^a ABB OY   (Finland)

^b AALTO UNIVERSITY   (Finland)

Author keywords

Eddy losses; Leakage flux; Overloading; Power transformer; Winding hot spot

Indexed keywords

COOLING; EDDY CURRENTS; ELECTRIC TRANSFORMER LOADS; MATHEMATICAL MODELS; TEMPERATURE;

EDDY LOSSES; LEAKAGE FLUX; POWER TRANSFORMERS; THERMAL TESTING; WINDING HOT SPOT;

TRANSFORMER WINDINGS;

EID: 0141883874     PISSN: 08858977     EISSN: None     Source Type: Journal    
DOI: 10.1109/TPWRD.2003.817516     Document Type: Article

References (4)

1. H. Nordman and M. Lahtinen, "Thermal overload tests on a 400 MVA power transformer with a special 2.5 pu short time loading capability," IEEE Trans. Power Delivery, vol. 18, pp. 107-112, Jan. 2003.
2. Loading Guide for Oil-Immersed Power Transformers.
3. IEEE Guide for Loading Mineral-Oil-Immersed Transformers, IEEE Std. C57.91-1995.
4. "Heat-run test procedure for power transformers," Electra, no. 129, pp. 37-45, Mar. 1990.