[Zurück]

E. Schmidt, P. Hamberger:
"Design Optimization of Power Transformers, Part 2 - Eddy Current Analyses for Tank Wall and Core Clamping Parts";
Vortrag: IEEE International Conference on Power System Technology (POWERCON), Singapore; 21.11.2004 - 24.11.2004; in: "Proceedings of the 4th IEEE International Conference on Power System Technology (POWERCON)", (2004), ISBN: 0-7803-8611-6; 6 S.

To maintain quality, performance and competiveness, finite element
analyses are increasingly utilized for the initial design, the design
review and the design optimization of power transformers. The detailed
geometry of windings, core, tank wall as well as insulation and clamping
parts requires 3D numerical calculation methods in order to obtain high
accurate values for the material utilization. The paper presents 3D
finite element analyses for the distribution of eddy currents in the core
clamping parts and the tank wall of power transformers. Since these eddy
current losses are obviously different between measurements of load
losses and normal operational conditions, the calculation shows the
regions of possible hot-spot temperatures with normal operational
conditions.

http://aleph.ub.tuwien.ac.at/F?base=tuw01&func=find-c&ccl_term=AC04967850