Answer / shahul snfa

Ynyn11,Ynyn0.. first two terms indicates about the winding
an the numericals is indicating about phase shift between
primary and secondary.

Answer / arunmozhi

Dyn11,DYN1 Ynyn0.there are different type of vector group
in using transformers.

we are check the polarity of transformer.

Answer / arun

Dyn11,YNyn11,YNd1,YNyn0, Dyn1, There are seven type of
vector groups in power transformer

Answer / amit3456

vector group shows the phase shift between winding, if it
is yndn11 it means primary is star and secondary in delta
and since the difference between star and delta is
30degree, so 360 is divided by 30 deg, it will divide in 11
posn.

Answer / ramu

Vector Groups indicates the magnatitude & direction of
voltage & current

Answer / john khan

In YNyn11(say), the capital letters represent HV Winding,
so YN means Star Configuration with a Neutral on HV side.
Similarly, yn means on LV side we also have Star
Configuration with Neutral. the number 11 is the phase
difference between primary and secondary. like on a clock
the difference between each hour is 30°. similarly 11
signifies 330° or -30°. that means LV leads HV with 30°.

Answer / gunasekaran

Dyn11 is common one we can use Dyn1 where 6 pulse electric
drives r using

Please explain, how to test vector group of tranformer(Delta y1) . Thank

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