What is YNyn0d1?

What is vector group of power transformer?

Hi first of all Vector group used to determine the PHASE shift of the TRANSFORMER as well as the PRIMARY and SECONDARY connection information. Let taken an example:- YNyn0d1 It means CAPITAL LETTERS indicates the primary side of winding detail's small letters for secondary side detail's DELTA CONNECTION Symbol D OR d is used and connection WYE used Y OR y for PRIMARY and SECONDARY. If WYE connection is their neutral always come so we used suffix N OR n. Now check PHASE angle Difference (PHASE ANGLE) see the last NUMERIC VALUE give correct information. Suppose we connect/compare two TRANSFORMER we first see its VECTOR GROUP if they matched then we do move to any connection. If any quarries fill-free to ask ajay.sahu099@gmail.com