Explanation: FR = 3/(2Fm) (for a 3 phase machine). A constant amplitude rotating MMF or rotating field is produced in the air gap of a three phase machine. 9. The amplitude of rotating MMF wave is proportional to
A. Nph and P
B. I and P
C. Nph and I
D. Nph, I and P
Answer:A
Explanation: FR = 3/(2Fm) (for a 3 phase machine). A constant amplitude rotating MMF or rotating field is produced in the air gap of a three phase machine. 9. The amplitude of rotating MMF wave is proportional to
A. Nph and P B. I and P C. Nph and I D. Nph, I and P
Explanation: FR = 3/(2Fm) = 3/(2 4√2/(ΠKw NphI/P)