What is synchronous motor? 

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Todays topic is Synchronous motor and its working
1. Constant Speed Operation: Synchronous motors operate at a constant speed regardless of load variations, making them suitable for applications where precise speed control is needed.
2. AC Power: They run on AC power and maintain synchronization with the frequency of the power source.
3. Rotor and Stator: Like other AC motors, synchronous motors have a stator and a rotor. However, the rotor turns at the same speed as the magnetic field generated by the stator.
4. Excitation Source: Synchronous motors require a separate DC power source for excitation, typically provided by either permanent magnets or a separate DC power supply.
5. High Efficiency: Due to their design, synchronous motors can be highly efficient, making them suitable for applications where energy efficiency is important.
6. Applications: They are commonly used in power plants, industrial processes, and applications requiring high precision and constant speed.
7. Power Factor Correction: Synchronous motors can improve power factor in electrical systems when used in conjunction with capacitors.
8. No Slip: Unlike asynchronous motors, synchronous motors have no slip between the rotating magnetic field and the rotor, resulting in precise speed control.
9. Size and Weight: Synchronous motors are generally larger and heavier than equivalent asynchronous motors due to the additional components required for excitation.
10. Starting Mechanisms: They require special starting mechanisms such as a variable frequency drive (VFD) or a starting motor to bring them up to synchronous speed before connecting them to the power source.
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