Q. In a 3-phase, 4-pole, 50 Hz synchronous motor, the frequency, pole number and loadtorque all are halved. The motor speed will be (Solved)
1. 3000 r.p.m.
2. 1500 r.p.m.
3. 750 r.p.m.
4. none of the above
- b. 1500 r.p.m.
1. 3000 r.p.m.
2. 1500 r.p.m.
3. 750 r.p.m.
4. none of the above