Question 129: AC fundamentals

Question

For the given circuit, comment on the type of transformer used.

Accepted Answer

Voltage across secondary coil,
= $${{Power\,across\,load} \over {Current\,pas\sin g\,through\,load}}$$
$$ \Rightarrow {V_2} = {P \over {{I_L}}} = {{60} \over {0.11}} \Rightarrow {V_2} = 545.45$$ V
Voltage across primary coil, V
1
= 220V
$$\Rightarrow$$ V
2
> V
1
It means that step-up transformer is used.

Answer

Auxiliary transformer

Answer

Step down transformer

Answer

Step-up transformer

Answer

Auto transformer

AC fundamentals

For the given circuit, comment on the type of transformer used.

Choose the correct answer: