Abstract: U-shaped busbars are frequently applied in distribution systems. In order to increase busbars ampacity it is important to be well acquainted with all busbar's characteristics, for optimal construction of the system.
In this article, an analysis of induction effects on two coupled U-shaped busbars' ampacity is presented, together with an attempt to achieve better performances of busbars.
The combination of skin and proximity effect significantly increases the AC conductor's resistance, compared to its resistance in a DC current case. An additional resistance lead to extra losses of energy through Joule heating, which is not negligible, not only from economy aspects, but from ecological aspects too.
This paper continues our investigations to find the best combination of two coupled U-shaped conductors in order to confront skin and proximity effects, making an improvement of their characteristics, decreasing losses in them. For that reason an analysis of different positions and different distances between them has been accomplished.
Keywords: U-shaped busbars, skin effect, proximity effect.