The line-to-line voltage ratio for the three-phase transformer is:

A three-phase transformer, connected in star-delta, is composed of three single-phase transformers, each rated 127/ 2 kV. The line-to-line voltage ratio for the three-phase transformer is:

  1.  220 / 2 kV
  2.  127 / 2 kV
  3.  220 / 220 kV
  4.  127 / 220 kV

 

Anurag Mishra Professor Asked on 14th January 2016 in Physics.
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