Given, Vp = 220 V
Vs = 2200 V
Np = 100
Ns = ?
Using formula,
\(\frac{Vp}{Vs}=\frac{Np}{Ns}\)
\(\frac{220}{2200}=\frac{100}{Ns}\)
Ns = 22000/ 22
Ns = 1000 turns.
A transformer that increases the voltage from primary to secondary (more secondary winding turns than primary winding turns) is called a step-up transformer. ... As a step-down unit, this transformer converts high-voltage, low-current power into low-voltage, high-current power.