Performance of large dc machines regarding commutation and temperature rise etc. at full load can be checked by .……. test.
A. brake
B. Swinburne’s
C. Hopkinson’s
D. running down
Answer:C
Performance of large dc machines regarding commutation and temperature rise etc. at full load can be checked by .……. test.
A. brake B. Swinburne’s C. Hopkinson’s D. running down