Literature on Sizing Zig-Zag Transformers for Large Scale Solar Farms connected to the Grid

[dZ.Anthony]

Need literature references on Sizing Zig-Zag Transformers for Large Scale Solar farms connected to the transmission grid.

 

[Gr8blu]

IEEE C57.159 (Photovoltaic systems)
IEC/IEEE C57.60076-16 (Wind systems)

Converting energy to motion for more than half a century

 

[VTer]

Most utilities require grounding transformers to satisfy their effective grounding requirement. However most utilities apply the X0/X1<3 and R0/X1<1 criterium to meet this requirement which is inconsistent with the recommendations of C62.96.6. Standard C62.92.6 has some further discussion on Effective Grounding in Section 8.1. In addition there is a report published by EPRI with some additional information titled Effective Grounding for Inverter-Connected DER. Good luck!

"Throughout space there is energy. Is this energy static or kinetic! If static our hopes are in vain; if kinetic ù and this we know it is, for certain ù then it is a mere question of time when men will succeed in attaching their machinery to the very wheelwork of nature". û Nikola Tesla