Tag: three phase induction motor

Synchronous Motor Drives

Synchronous Motor Drives: Variable frequency drives employing synchronous motor are receiving consid¬≠erable interest, and are even becoming competitors to both induction motors and dc motors. These are popular as drives for very high power applications, such as pumps, fans, conveyors, etc. The stator of the synchronous motor is supplied from a thyristor power converter capable […]

Speed Control of Variable Frequency Induction Motor

Speed Control of Variable Frequency Induction Motor: Speed Control of Variable Frequency Induction Motor of a squirrel cage induction motor can be controlled very effectively by varying the stator frequency. Further, the operation of the motor is eco¬≠nomical and efficient, if it operates at very small slips. The speed of the motor is, therefore, varied […]

Speed Torque Characteristics of Induction Motor

Speed Torque Characteristics of Induction Motor: Speed Torque Characteristics of Induction Motor – From Eq. 1.27 it can be observed that the maximum torque is independent of rotor resistance. However, the slip at which the maximum torque occurs changes with rotor resistance. When the rotor resistance is increased, so is the slip for maximum torque, […]

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