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Torque slip
Torque Slip Torque slip is a phenomenon that occurs when the flux (magnetic field) in an induction machine is not completely aligned with the rotor's magneti...
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Torque Slip Torque slip is a phenomenon that occurs when the flux (magnetic field) in an induction machine is not completely aligned with the rotor's magneti...
Torque slip is a phenomenon that occurs when the flux (magnetic field) in an induction machine is not completely aligned with the rotor's magnetic field. This leads to a decrease in the induced voltage and, consequently, a decrease in the torque developed by the machine.
Causes:
The most significant cause of torque slip is the reluctance of the rotor conductors. The rotor conductors have a higher resistance to changing magnetic field compared to the stator conductors.
As the rotor spins, the relative positions of the rotor and stator conductors change, causing the magnetic field to rotate at a different speed than the rotor.
Another factor contributing to torque slip is the slip ratio, which is the ratio of the rotor conductor resistance to the stator conductor resistance.
Effects:
Torque slip causes the motor to operate at a lower speed than its rated speed.
The output power of the motor also decreases due to the reduced torque.
Torque slip is a major factor affecting the performance of induction machines, especially in applications where high torque and speed are required, such as in industrial machinery and wind turbines.
Examples:
Torque slip can be observed in an induction motor when the load is increased or when the field current is increased.
In a synchronous motor, torque slip is typically very low and the motor operates at its rated speed.
Torque slip can be controlled by adjusting the field current, the rotor speed, and the load on the motor