The stator coil is exactly the same as a 3 phase induction motor. The difference being the rotar which has 3 phase wiring in star point or delta connection and also has the sliprings connected to the wiring of the rotor. Brushes are use for the contact between the surpply and the rotor. By controling the current we can control the torgue and speed of the motor. This is done with resistance. Resistance can be greated by means of a resistance bank, liquid resistance or a variable resistance. The basic Idee is: The higher the resistance, low starting current, high torque, high % slip. Motor runs slowly
Low resistance , Higher starting current, lower torgue, lower % slip Motor runs faster.
Thus by varing the rotor resistance the motor can be adapted for a spesific load.
The motor Are mainly used for Overhead cranes, Elevators in buldings, Pumps under pressure and large fans
Ac motor have slip ring, to remove the slip ring,connected to the commutator its a dc motor.
ring is dirty or brushes arent seated
To calculate the resistance for a slip ring motor, there is an equation that must be solved. This is Torque = S/R. S is the slip of the motor and R is the resistance of the motor.
A synchronous motor runs at synchronous speed, so there is no slip, or zero slip.
With a synchronous motor shorting the slip-rings together should make it work as an induction motor although perhaps not to an optimal degree.
Ac motor have slip ring, to remove the slip ring,connected to the commutator its a dc motor.
Yes a slip ring motor is there. There is a slip ring and a brush in the motor to add external resistance to the motor inorder to be able to control its speed.
ring is dirty or brushes arent seated
To calculate the resistance for a slip ring motor, there is an equation that must be solved. This is Torque = S/R. S is the slip of the motor and R is the resistance of the motor.
short the rotor terminals.
yes
it is related to Slip ring rotor max.currents and voltage ...
Slip Ring Induction Motor and Squirrel Cage Indution Motor
slip ring, synchronous, and squirrel cage induction motors....
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YES
The main difference is in how the carbon brushes are used. In an AC slip ring motor, the brushes transfer power to the rotor through slip rings, whereas in a DC commutator motor, the brushes switch the current direction on the rotating armature to maintain torque and rotation. Additionally, the design and composition of the brushes may vary to accommodate the specific requirements of each motor type.