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E. Schmidt, P. Hamberger:
"Design Optimization of Power Transformers, Part 1 - Sensitivity Analyses for Winding Insulation and Support";
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 with the intent of an optimization of winding
support, core clamping system and tank wall shape. These calculations are
carried out for the electric field distribution in the winding support
and the sensitivity with regard to various material properties according
to production tolerances.

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