The following tests are performed on a single phase transformer rated 30/6.3 KV , 10 MVA , 50 HZ
i- Short circuit test with L.V side short circuited and measurement made on H.V side
I = I full load , V = 2700 V , P 80 KW
ii- No-load test with the H.V open circuited
V= 6.3 KV , I = 22.7 A , P= 100 KW
a) Calculate the equivalent resistance , reactance and impedance
b) What is the secondary voltage if the transformer is loaded with full load current at 0.8 P.f lagging