Three-Phase Transformer for Power Transmission
Three-phase power transformers are of a prime position in energy distribution networks in power systems that require efficient distribution capacity and high-power transmission capabilities. At higher power ratings, three-phase transformers are less expensive, lighter, and smaller since they use less wiring compared to three single-phase transformer types. They are ideal for industrial equipment and offer many benefits for multiple applications.
Challenges of Modeling Three-Phase Transformers
The design of transformer systems is a challenging endeavor, especially for high-power applications. During the design process, the following aspects need to be taken into consideration:
- Steady-state and transient magnetic analyses
- Winding configurations and connections (delta or star)
- Compute winding properties (AC and DC resistance and inductances, etc.)
- Open and short circuit tests
- Extracting the transformer equivalent circuit
- Core design and material investigation
- Electromagnetic loss calculation (hysteresis, eddy, and winding loss)
- Heat distribution and mechanical deformation
- Electric field analysis and insulation failures
EMWorks Solution for Transformer Power Systems
Transformer maintenance and repair is expensive. Therefore, the simulation and validation of all performance aspects of a transformer can save your money, time, and effort.
From geometry modeling to finite element simulation of its electromagnetic behavior, EMWorks tools provide a full solution for transformer devices:
TransformerWizard: is an EMWorks 3D CAD tool for transformer designs, fully integrated inside your CAD platform and allows you to get, with few clicks, various pre-defined transformer templates for single and three-phase configurations.
Electromagnetic simulation: The popular 2D and 3D low-frequency software packages from EMWorks, EMS and EMWorks2D, are the preferred simulation platforms for many transformer designers and manufacturers; they addresses all aspects of a transformer design allowing an accurate and efficient computation of electromagnetic fields and multi-physics analysis.
The figures below show some of the obtained 2D and 3D results of a three-phase transformer design:
On Load Circuit with Resistive Load -∆Y Transformer Connection