Which among the given harmonics are called belt harmonics?
A. 5,7,11,13
B. 3,6,9,12
C. 5,6,11,12
D. 7,11,13,15
Answer:A
Which among the given harmonics are called belt harmonics?
A. 5,7,11,13 B. 3,6,9,12 C. 5,6,11,12 D. 7,11,13,15
Explanation: The odd harmonics of the order 5,7,11,13 etc are called belt harmonics. 9. Machine A has 60° phase spread and machine B has 120° phase spread. Both the machines have uniformly distributed winding. The ratio of distribution factors of machine A to machine B is ____________