We order Dyn 5 distribution transformer to a company. What arrives is Dyn 11. Is it ok to use this transformer.
It will be installed alone.

Answer Posted / bheesham acharya

Dyn11 and Dyn5 both are vector Group b/w phases and neutral....
D is indicate Primary side Delta connection,
y is indicate secondary side Star connection,
N is indicate Neutral and
5 and 11 is just indicate the angle  
5 is show 30 degree angle and 11 is show 120 degree angle b/w star phase and in neutral connection  

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