The main disadvantage of Hopkinson’s test is that
A. it needs large power.
B. it needs two identical machines.
C. no account is taken for change in iron losses due to flux distortion on full load conditions.
D. all of the above.
Answer:B
The main disadvantage of Hopkinson’s test is that
A. it needs large power. B. it needs two identical machines. C. no account is taken for change in iron losses due to flux distortion on full load conditions. D. all of the above.