Permanent magnet synchronous motor(PMSM)

PMSM stands for

• Permanent magnet synchronous motor

• Permanent magnet silk machine

• Permanent magnet synchronous material

• None of the above

PMSM stator construction is simillar to

• synchronous motor

• Induction motor

• Compound motor

• All of the above

PMSM rotor is made up of

• field winding

• Permanent magnet

• sillicon steel

• None of the above

The following are the permanent magnet material

• ALNICO

• CERAMIC

• SmCo

• ALL OF THE ABOVE

The main advantages of using permanent magnet in rotor

• Field winding Copper loss is reduced

• High efficient

• more losses

• Option A & B

Synchronous motor operate at various power factor like

• Lagging

• leading

• unity

• all of the above

synchronous motor is

• not a self starting machine

• self starting machine

synchronous motor.......................not varied even applying any load

• Frequency

• Voltage

• Speed

• None of the above

In synchronous machine,Hunting effect can be reduced by

• lap winding

• wave winding

• damper winding

• none of the above

pmsm stator has

• 3phase winding

• 2phase winding

• 1phase winding

• None of the above