A Δ/Y transformer has a phase-to-phase voltage transformation

Home » Electrical Machines » Electrical machines miscellaneous » Question

A Δ/Y transformer has a phase-to-phase voltage transformation ratio of α (delta phase): 1 (star phase). The line-to-line voltage ratio Y/Δ is given by

1. √3
  a
2. a√3
  1
3. √3
  a
4. a

Correct Option: C

NA