engineering recuitment GATE IN Test Series 2023-24 Mock Test Electrical Machines Transformer Efficiency of a Transformer
The maximum efficiency of 550 KVA, 3300/430 V, 50 Hz 1 ϕ transformer is 98% and occurs at ¾ full load, unity power factor. If the impedance is 10%, calculate the regulation (in %) at full load at 0.8 P.F lagging.
Enter numerical value using the virtual keypad. Round off where necessary.