Transformer Grounding: Advantages & Disadvantages for System Protection

[Ian_Brooks]

what are the advantages and disadvantages of different types of transformer grounding

-with regard to system protection and fault current reduction?

we have the following grounding types

YN - YN
YN - Delta
Delta - YN
Delta - Delta

where can i find a good resource that explains this?

 

[dlgoff]

See if this helps a little:
http://www.allaboutcircuits.com/vol_2/chpt_10/6.html"