Title :
Temperature rise calculation and loss of life assessment of oil-cooled traction transformer
Author :
Tong, Laisheng ; Wu, Guangning
Author_Institution :
Sch. of Electr. Eng., Southwest Jiaotong Univ., Sichuan, China
Abstract :
Traction transformer is a major apparatus in traction power supply system. Therefore, to make economical decisions for traction transformer replacement, it is critical to be able to estimate with reasonable accuracy the traction transformer remaining life expectancy. The paper demonstrates a indirectly calculating method to acquire traction transformer´s winding hot-spot temperature. The dependence between transformer loss of life and temperature is calculated as a function of the hot-spot temperature. And the factors influencing traction transformer´s winding hot-spot temperature and loss of life are analyzed.
Keywords :
traction power supplies; transformer oil; transformer windings; transformers; loss of life assessment; oil-cooled traction transformer; temperature rise calculation; traction power supply system; traction transformer life expectancy; winding hot-spot temperature; Condition monitoring; Economic forecasting; Life estimation; Oil insulation; Power generation economics; Power transformer insulation; Predictive models; Temperature; Traction power supplies; Windings;
Conference_Titel :
Solid Dielectrics, 2004. ICSD 2004. Proceedings of the 2004 IEEE International Conference on
Print_ISBN :
0-7803-8348-6
DOI :
10.1109/ICSD.2004.1350369
