Transfomer vector group

[southward]

Any advantage in choing which group to use

 

[davidbeach]

It depends.

 

[Marmite]

I agree. If you didn't choose then who knows what might happen.
Regards
Marmite

 

[SparkyLarks]

Specifing your vector group is important. It generally tells you how the windings of yout transformer are connected.

Do you want a Delta,Wye, Zigzag or independant winding for the primary and secondary side of your transformer?

the second question is what phase angle do you want between the windings? that is the number after the Dy or Dyn tells you how much the LV lags the HV side 1 is 30° 2 is 60° 11 is 330° or a 30°lead.

Different applications benfit from different vector groups

Are you connecting to the utility? they will probably specify what you need.

Is it a plant distribution transformer - what are the other thransforems in the plant?

Lots of good information out there on the internet, that is worth looking up. 10 minutes on Google will probably give you enough information. Or ask your supplier for a tutorial or technical guide. ABB have a good transformer guide book .

 

[DANSES]

yap.. I am also agree.
Its realy depend on your purpose.
But, one thing you should be consider is price.
Some of special transformer / optional transformer is expensive.