Learning Forum

[gurunadh]

Dear all,

I am having problem in Stray loss computation using Ansys Maxwell.

Kindly anyone suggest for the material properties of copper, core and mild steel.

and Impedance boundary setting.

How to check the stray loss on structural parts of transformer.

Regards
Gurunadh

 

 

 

 

[Tamami Yamanaka]

Hello,

You can refer to the pre-installed Maxwell example: File > Open Examples > Maxwell > Transformers Power > PowerTransformer.aedt
This transformer example shows how to set impedance boundary conditions to the tank and clamps, apply materials, and plot stray losses as surface loss fields.

[gurunadh]

Hello sir

thank you, your reply is very much helpfull to me.

In the example provided, Relative permeability of core is considered 5000 and bulk conductivity is considered 0.

is there any reason for this consideration?

 

[Tamami Yamanaka]

Hello,

The Maxwell 3D: PowerTransformer example aims to compare linear and nonlinear impedance boundary losses at the tank walls and clamps of an oil-filled power transformer. The core steel settings are simplified.

[gurunadh]

Hello sir

Is there any other examples on Impedance boundary simulation of Power Transformer for stray loss computation.

[Tamami Yamanaka]

Hello,

I’m afraid we do not have any other opened example models available for licensed users.
Please refer to the online help for information on impedance boundary condition settings.

Ansys Maxwell Help 2025 R1 > Assigning Boundaries and Excitations for 3D Designs > Eddy Current T-Omega Boundaries and Excitations > Assigning an Impedance Boundary
Ansys Maxwell 2025 R1 - Assigning an Impedance Boundary for the Eddy Current Solver