A transformer steps down 11,000 V to 220 V and supplies a load of 10 kW at 0.8 power factor (lagging). The primary winding has resistance 50 Ω and leakage reactance 200 Ω. Find: (16)

(a) turns ratio,

(b) secondary current,

(c) primary current (referred to primary),

(d) voltage regulation.