\(
m = K_0 = \frac{N_1}{N_2} = \frac{300}{50} = 6
\) \(
\text{dato che } K_0 = \frac{V_1}{V_2}
\ \Rightarrow\
6 = \frac{380}{V_2}
\) \(
V_2 = \frac{380}{6} = 63{,}3\ \mathrm{V}
\quad (\text{concatenata})
\) \(
\text{poi, dato che}\quad
P = 3 E_2 I_2 \cos\varphi
= 3\,\frac{V_2}{\sqrt{3}}\, I_2 \cos\varphi
\) \(
P = \sqrt{3}\, V_2 I_2 \cos\varphi
\ \Rightarrow\
I_2 = \frac{P}{\sqrt{3}\, V_2 \cos\varphi}
= \frac{5000}{\sqrt{3}\cdot 63{,}3 \cdot 0{,}8}
\approx 57\ \mathrm{A}
\)
m = K_0 = \frac{N_1}{N_2} = \frac{300}{50} = 6
\) \(
\text{dato che } K_0 = \frac{V_1}{V_2}
\ \Rightarrow\
6 = \frac{380}{V_2}
\) \(
V_2 = \frac{380}{6} = 63{,}3\ \mathrm{V}
\quad (\text{concatenata})
\) \(
\text{poi, dato che}\quad
P = 3 E_2 I_2 \cos\varphi
= 3\,\frac{V_2}{\sqrt{3}}\, I_2 \cos\varphi
\) \(
P = \sqrt{3}\, V_2 I_2 \cos\varphi
\ \Rightarrow\
I_2 = \frac{P}{\sqrt{3}\, V_2 \cos\varphi}
= \frac{5000}{\sqrt{3}\cdot 63{,}3 \cdot 0{,}8}
\approx 57\ \mathrm{A}
\)
