Question

A transformer has an input of 400V and a ratio of 2:1. If the transformer is delta / star wound, what will the line voltage output be?​

Answer 1

Answer:

200V

Explanation:

Given Data:

$V_{inp}$ = 400V

Ratio of turns =  $\frac{Ns}{Np}$  =2:1

Find:       $V_{out}$ =?

Solution:  

 $V_{inp}$ /     $V_{out}$ =     $\frac{Ns}{Np}$

  400/   $V_{out}$  =   2:1

400 ×  1  /2      =  $V_{out}$

        $V_{out}$ = 200V