as a motor armature speed increases,the net current in the motor windings decreases due to MAGNETIC DRAG. which is a common phenomenon in the ac machines.
Typically the armature windings are in the stator of a generator, which does not rotate. Typically the field windings are on the rotor, which rotates.
For a D.C motor it is the field windings which must always be in series with the armature windings.
The windings of the armature are constantly cutting magnetic lines of force of opposite polarities
series field in series with the armature shunt in parallel with the voltage supply the shut field increases the strength of the magnetic field with heavy loads to reverse the motors direction the fields remain the same you swap the armature leads
The terms 'shunt' and 'armature' apply to a particular type of d.c. motor, in which the field windings are connected in parallel with the armature windings. 'Shunt' is an archaic term for 'parallel', so the term 'shunt', in this context, means that the field winding is connected in parallel with the armature winding. The terms 'shunt current' and 'armature current', then describe the currents flowing in the shunt winding and armature winding, respectively.
Typically the armature windings are in the stator of a generator, which does not rotate. Typically the field windings are on the rotor, which rotates.
The stator and the armature are both wound. An excitation current is applied to the field(stator) windings from a DC source like a battery in order to produce a magnetic field. The armature is connected to a turbine or diesel engine via a shaft. As the armature turns, it's windings cut the magnetic flux of the field windings inducing an emf in the armature windings.
No.
Commutating field windings are connected in series with the armature windings so that the current flowing in the coils is always equal to the armature current. The number of turns in the commutating field windings are also equal to the number of armature turns. This means that the field strength of the commutating windings and the field strength of the armature are always equal. A DC motor is constructed so that these two fields of equal strength oppose one another, they therefore cancel one another out. The main field is now unaffected by armature reaction.
For a D.C motor it is the field windings which must always be in series with the armature windings.
compensating windings are used to overcome armature reaction
The windings of the armature are constantly cutting magnetic lines of force of opposite polarities
series field in series with the armature shunt in parallel with the voltage supply the shut field increases the strength of the magnetic field with heavy loads to reverse the motors direction the fields remain the same you swap the armature leads
The terms 'shunt' and 'armature' apply to a particular type of d.c. motor, in which the field windings are connected in parallel with the armature windings. 'Shunt' is an archaic term for 'parallel', so the term 'shunt', in this context, means that the field winding is connected in parallel with the armature winding. The terms 'shunt current' and 'armature current', then describe the currents flowing in the shunt winding and armature winding, respectively.
Increasing flux, torque of the dc motor will be increased and speed of the dc motor will be decreased as speed of the dc motor is inversely proportional to that of the flux and the torque of the dc motor is directly proportional to the flux.
Shunt Motor
Reverse the polarity of armature windings of the motor.