Transformer

if vector group of a transformer can be changed by its CT/PT connection. then what we mean physically(winding, limb) of vector group?

how we can make arrangement to change the vector group at site commissioning?

please provide me with full detail, as i am fully novice about transformer vector group analysis.

reply me at : gpsamal46@gmail.com

I will be thankfull to youo.

With regards,

Samal