Question

A 1000 kVA transformer has primary and secondary turns of 400 and 100 respectively

and induced voltage in the secondary is 1000V. Find (i) the primary voltage, (ii) the

primary and secondary full load current, (iii) the secondary current when 100 KW load at

0.8 pf is connected at the output​

Answer 1

Answer:

given--

Np=4000

P=1000000VA

Ns=1000

Vs=1000

Ns/Np=Vs/Vp=k (turns ratio)

P=VICos(theta) where p.f.= cos(theta)=.8