Question

Problem 5 (5 points for circling just the correct answer. 3 points if 2 are circled and one is correct) A 4 pole permanent magnet synchronous machine is held at a constant angle. The torque on the shaft is T- 4.5 Nm. The current vector is given as a) What is the torque constant (KT)? ili) 4.5 6 ii) 4.5.6. 4.5 2 What is the mechanical angle of the shaft for θ.-60° ? i) 60+90 b) iii) 60을 ii) (60-90) 4 iv) 60.-90 4 c) What would be the mechanical angle for phase b current ib 0? 4 i)A-120-90 ii) 120 4 iii) 120+90 iv) .(120-90)-90

Answer 1

кі Li.S 0-0 남:0 2120 1