Advice on toroidal inductor design for power harvesting

[Viroos]

Hi, I'm a mechanical engineer, but occasionally do some electro-mechanical systems too, but I feel that my knowledge in EE is insufficient. Now I need to design a toroidal inductor in order to harvest power from overhead high voltage lines. How to do it right? The winding should be "simple" or like in Rogowski coil? The core should be iron, ferrite or laminated steel? Thanks!

 

[davidbeach]

That would be called theft.

 

[System Protection]

 

[waross]

Now I need to design a toroidal inductor in order to harvest power from overhead high voltage lines.

That may be more difficult than you imagine.
For best efficiency the toroidal core should encircle the high voltage conductor.
That will be difficult to do while maintaining safe clearances.