Tank temperature rise verification
The coupled magnetic–thermal simulation of a rectifier transformer has been performed. The presence of a complex LV busbars system makes the localization of the hot spots not trivial.
The simulation provided a very good match with the measured tank temperature value and localization.
50 MVA rectifier transformer.
- Complex LV bars system.
- A coupled 3-dimensional magnetic-thermal simulation.
- Complex coil building and circuit.
- Mild steel tank wall and non magnetic steel parts had to be taken into account.
Good match between simulations and measurements. Simulations may be used to predict and prevent failures. In this way alternative solution can be studied at a design stage if the results of the simulations are not the ones expected.