The electromagnetic torque in non salient pole machines depends on
A. number of poles
B. machine dimensions at the air gap
C. peak value of stator and rotor MMF
D. Any of the mentioned
Answer:A
The electromagnetic torque in non salient pole machines depends on
A. number of poles B. machine dimensions at the air gap C. peak value of stator and rotor MMF D. Any of the mentioned
Explanation: Te also depends on the sine of the angle between the axis of the two fields(or MMFs) Te =-(P/2)(μoΠrl/g)(FsFr)sinλNm. 2. The torque equation for non salient pole machine is Te =-(P/2)(μoΠrl/g)(FsFr)sinλNm. What does the negative sign in the torque expression indicates?