Given, Np = 3Ns
Vp = 220 V
Vs = ??
As we know,
\(\frac{Vp}{Vs}=\frac{Np}{Ns}\)
or, \(\frac{220}{Vs}=\frac{3N}{Ns}\)
or, 220 / 3 = 73.33 V
Thus, it is a step down transformer.A step-down transformer has more primary windings than the secondary side. ... The secondary coil connects to the load, or secondary voltage outflow, distributing the electrical power away from the transformer. The alternating current flowing in at the primary voltage creates an alternating magnetic flux.