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?
A. stator and rotor MMF tend to reduce angle λ
B. stator and rotor MMF tend to increase angle λ
C. stator tend to reduce the air gap g
D. rotor tend to reduce the air gap g
Answer:A
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?
A. stator and rotor MMF tend to reduce angle λ B. stator and rotor MMF tend to increase angle λ C. stator tend to reduce the air gap g D. rotor tend to reduce the air gap g