Trefoil Cable Configuration Question

[FEinTX]

We are building a 34.5 KV collection system for a windfarm, and almost all the 3-phase cable is configured in trefoil. Occasionally, the installers make a mistake and in the middle of a circuit, one cable will jump through the other two. For example, you might have 1000' where the orientation is A-B-C as you look at a cross-section of the 3 cables, and then C accidentally passes between A and B and now you have the next 1000' with a cross-section of A-C-B.

Question - Does this create a problem? EG. - Will the current-carrying capability of these cables be diminished?

FEinTX

 

[dpc]

It's probably a good thing. Helps balance out any asymmetry in the mutual inductance.

 

[cuky2000]

See the enclosed link thread238-121534