Title :
Heat analysis of main high-speed electric locomotive transformer tank using 3-D finite element method
Author :
Long, Luo ; Jianzhou, Li ; Tiao, Tong
Author_Institution :
Coll. of Electr. & Inf. Eng., Hunan Univ., Changsha, China
Abstract :
It is necessary to accurately calculate the tank loss and local hot-spot temperature rise because of intense transverse leakage magnetic field in the high-speed electric locomotive main transformer with interleave windings and high leakage impedance. In this paper the leakage magnetic field of the main transformer has been analyzed. The eddy loss in the tank has been calculated accurately. The temperature field of the tank wall has been simulated and the hot-spot and corresponding temperature rise has been found. Based on these, the corresponding shielding measure has been brought forward
Keywords :
eddy current losses; electric locomotives; finite element analysis; power transformers; thermal analysis; 3-D finite element method; 3D FEM; eddy current loss; heat analysis; high leakage impedance; high-speed electric locomotive; interleave windings; leakage magnetic field; local hot-spot temperature rise; tank loss; temperature field; thermal conduction; transformer tank; transverse leakage magnetic field; Eddy currents; Equations; Finite element methods; Magnetic analysis; Magnetic field measurement; Oil insulation; Power transformers; Resistance heating; Temperature; Thermal conductivity;
Conference_Titel :
Electrical Machines and Systems, 2001. ICEMS 2001. Proceedings of the Fifth International Conference on
Conference_Location :
Shenyang
Print_ISBN :
7-5062-5115-9
DOI :
10.1109/ICEMS.2001.970659
