Provides detailed introduction to virtual design using
finite element analysis
A new website to help engineers accelerate and improve the
design of electrical power transformers and AC line reactors has
been launched by Cobham Technical Services.
Designed to be a useful resource for engineers seeking to
optimise the performance of power transformers or reactors the new
website - http://transformer-design-software.com - provides clear
insight into the benefits of automating the design process using
finite element modelling, simulation and analysis by means of an
on-demand detailed technical audio visual presentation.
'Introduction to Transformer Design' demonstrates the virtual
design process. It explores the Opera design software to illustrate
how finite element analysis (FEA) techniques enable conceptual
designs of power transformers and reactors to be created, analysed
and optimised easily. By allowing users to prove designs before
building physical prototypes, this approach reduces production
costs and shortens time-to-market significantly - and provides a
simple means of fine-tuning design ideas to meet specific goals
such as higher efficiency or reduction of materials.
Subjects covered include the definition of model geometry,
finite element shapes, mesh density and material type, as well as
transformer or reactor configuration, containment and winding
layout. Open-circuit, short-circuit, inrush current and mutual
inductance tests are described in detail, together with results
analysis options. The presentation also highlights how it's
possible to extensively automate the design-analyse-optimise
The presentation includes benchmark results on an
internationally agreed family of problems defined to test the
accuracy of simulation software in modelling transformers.
Structural and thermal analysis capabilities are also covered
briefly, showing how the electromagnetic FEA tool can encompass
every aspect of transformer design and qualification. For engineers
wishing to gain a more in-depth appreciation of multiphysics
simulation, the website provides a link to a further detailed
The website also provides a dynamic overview of the
low-frequency electromagnetic design automation software package
Opera, as well as a wealth of information about finite element
application areas and capabilities. Cobham is also further
populating the site with technical papers and application notes on
transformer design and optimisation.