Recent content by Willy

The two graphs show the magnetic field from the inside of the duct through the duct going outside the duct. The problem unit measurement is mm, working at 50 Hz. Duct is 490x490x3. The rotating field is not the problem, it makes sense that is circular as the currents are balanced, the fact is...

Changed the conductivity of the duct to 10^-9, so i guess the eddy currents are not affecting the magnetic field that much. Though, if i change the permeability... Permeability of the duct=1, conductivity=10^-9. For what i know, this does not make sense. I would really appreciate if anyone...

Hi I am using FEMM 4.2. The duct thickness is 3mm. Its permeability is 37. Inside the duct there is only air (and of course the cables), the duct is surrounded of soil(peat,loam). In this model the conductivity of the duct is not 0, i checked if changing the value to 0 would have an effect...

Hi all, first time on this forum. I know this may sound like a stupid question, but how does the magnetic field distribute? I am working on FEMM and i am analysing magnetic losses on steel ducts. I was checking the flux density and the magnetic field distributions and i was surprised when i...