Transformers modeling

[Konstantin_Smirnov]

Hello!
Who knows about 3d models of transformers and el. substations including equations and theory?

Also it is enough to use usual Kirhgof laws and others to create a tr-r?

[chschlue]

Here’s a 3D model:
https://grabcad.com/library/three-phase-oil-immersed-hermetically-sealed-distribution-transformer-tmg-400-1

And here’s the theory:

Kirchhoff and phasors are more than enough. Note that symbols with primes are referred to the primary side

[Konstantin_Smirnov]

Thanks! And if we create substations - which consist tr-r and switches,and others?

[chschlue]

Pretty sure ABB has step models of medium voltage switchgear publicly available. Probably others, too.

BTW: I would strongly advise against building substations based on Internet forum knowledge.

[Konstantin_Smirnov]

What is ABB? )) Thanks

[paulvdh]

ABB is a manufacturer who makes transformers that do not fit on a PCB such as:
https://duckduckgo.com/?q=abb+transformer&t=h_&iax=images&ia=images

ABB’s Idea of a substation is possibly also slightly different from what you have in mind:
https://duckduckgo.com/?q=abb+substation&t=h_&iar=images&iax=images&ia=images

[kammutierspule]

Let me know if you render it with KiCad 3D-Viewer

[chschlue]

I’ll let you know if the viewer can’t handle it.

[Konstantin_Smirnov]

Thanks. Suppose we have a method, that can calculate parameters and equations of el. circuit. In arbitrary type of equations, and interval - what can we add here so the system can solve problems of radio circuits - and be like a candy? &)

[Konstantin_Smirnov]

Hi!
Who can help with substations formulas - examples of simple with transformers?

[Konstantin_Smirnov]

Any papers in pdf. Scientific engineering

[chschlue]

https://www.amazon.com/dp/3662527022 is pretty good. Don’t know if it’s been translated, though.