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Difference Between Synchronous and Induction Motor Video Lecture | Electrical Engineering SSC JE (Technical) - Electrical Engineering (EE)
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FAQs on Difference Between Synchronous and Induction Motor Video Lecture - Electrical Engineering SSC JE (Technical) - Electrical Engineering (EE)
| 1. What is the difference between a synchronous motor and an induction motor? |  |
Ans. A synchronous motor operates at a constant speed determined by the frequency of the electrical supply, while an induction motor operates at a speed slightly lower than the synchronous speed. Additionally, a synchronous motor requires external means to start, whereas an induction motor is self-starting.
| 2. How does a synchronous motor maintain constant speed? | |
Ans. A synchronous motor maintains constant speed by synchronizing with the frequency of the electrical supply. The motor's rotor locks onto the rotating magnetic field created by the stator, ensuring that the motor rotates at the same speed as the supply frequency.
| 3. What are the advantages of an induction motor over a synchronous motor? | |
Ans. Induction motors are more cost-effective and simpler in design compared to synchronous motors. They also have better starting torque and are more suitable for high inertia loads. Additionally, induction motors do not require external means for synchronization, making them easier to operate.
| 4. Can an induction motor be used for applications that require constant speed? | |
Ans. Yes, an induction motor can be used for applications that require constant speed by utilizing additional control systems. These systems adjust the voltage and frequency supplied to the motor, allowing it to maintain a constant speed. However, synchronous motors are typically more suitable for such applications.
| 5. Are synchronous motors more efficient than induction motors? | |
Ans. In general, synchronous motors have higher efficiency than induction motors. This is primarily due to the absence of rotor losses in synchronous motors. However, the overall efficiency also depends on various factors such as load conditions, power factor, and motor design, so it is essential to consider these factors when comparing the efficiency of synchronous and induction motors.
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Nov 24, 2024 Last updated |
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