A transformer having maximum efficiency at 75% full load will have rat – McqOptions

MCQOPTIONS

1.	A transformer having maximum efficiency at 75% full load will have ratio of iron loss and full load copper loss equal to ___________
A.	4/3
B.	3/4
C.	9/16
D.	16/9
Answer» D. 16/9

Discussion

No Comment Found

Related MCQs

For a power transformer operating at full load it draws voltage and current equal to 200 V and 100 A respectively at 0.8 pf. Iron and copper losses are equal to 120 kW and 300kW. What is the efficiency?
A 500 kVA transformer is having efficiency of 95% at full load and also at 60% of full load; both at unity power factor. Then Pc is ___________
A 500 kVA transformer is having efficiency of 95% at full load and also at 60% of full load; both at unity power factor. Then Pi is ___________
What is the correct formula of efficiency of a device?
A transformer having maximum efficiency at 75% full load will have ratio of iron loss and full load copper loss equal to ___________
The efficiencies of transformers compared to electric motors of the same power are ___________
Why efficiency of a transformer, under heavy loads, is comparatively low?
For a transformer given, operating at constant load current, maximum efficiency will occur at ______
Power transformers other than distribution transformers are generally designed to have maximum efficiency around ______
At which load condition maximum efficiency of a distribution transformer will be achieved?