Q. 81 What is the maximum efficiency (in %) at unity p.f. load ?A 300 kVA transformer has 95% efficiency at full load 0.8 p.f. lagging and 96% efficiency at half load, unity p.f.
(A) 95.1
(B) 96.2
(C) 96.4
(D) 98.1
Answer:(B)
Explanation: