WHAT IS NORMAL VECTOR GROUP USED FOR DESIGNING OF TRANSFORMERS??
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Answer Posted / sudeep dutta
it depends on wheaher the transformer ins step-up or step-
down....................
For step-up .........it should be Yd1 or Yd11 .........
For step-down it should be Dy1 or Dy11............
for grounding purpose it should be Yz1 or Dz11........
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