A shunt motor connected across a 400 V supply takes a total power of 8 kW and runs at 600 rev/min. The filed coil and armature has a resistance of 200 N and 0.6 N, respectively. Calculate: (i) The field current and the armature current, (ii) The back e.m.f., (iii) The values of the armature current and of the speed if the magnetic flux is reduced by 30% and the load torque is increased by 40%.

Q: Q.36 Name three factors that determine the torque produced by an induction motor. Select one or…

A: Those  three factors are following in which torque depends upon:- i) the magnitude of rotor current.…

Q: 1.- The production of a force in a conductor carrying current that is inside a magnetic field, is…

A: 1.- The production of a force in a conductor carrying current that is inside a magnetic field, is…

Q: The voltage induced by a 6-pole DC generator running at 600 [RPM] with 100 slots on the armature and…

A: Given,  A DC generator has,  Number of poles,  p = 6  Speed of rotor,  N = 600 rpm  Flux per pole =…

Q: A 4 pole machine generates 250 volts when operated at 1500 rpm. If the flux per pole is 1.85 x…

A: It is given that: P=4Ea=250 voltsN=1500 rpmϕp-p=1.85×106 maxwell=1.85×106×10-8WbA=2no. of armature…

Stator and Rotor Magnetic Field

The stator and rotor magnetic field is the resulting magnetic field generated by a system of coils that are symmetrically aligned. They are supplied with polyphase currents. The magnetic field is generated by poly-phase (two or more phases) current or single-phase current. In the latter case, two field stator windings are supplied and two resulting electromagnetic fields are generated beyond the stage.