As an electrical, the electrical motor is an electro-mechanical device that converts electrical energy into mechanical energy.
What is a synchronous motor?
The definition of the synchronous motor states that, An AC motor in which at steady state, rotation of the shaft is in sync with the frequency of the applied current. The synchronous motor works as an AC motor but here the total number of rotation made by the shaft is equal to the interference multiple of the frequency of the applied current.
Working principle of synchronous motor
- The synchronous motor will work on the basic principle of magnetic locking.
- When two unlike strong unlike magnets poles are brought together in the motor. There exists a tremendous force of extraction between those two poles. In such a condition, the two magnets said to be magnetically locked.
- The stator and the rotor are two main parts of the synchronous motor. The stator is the stationary part of the motor while the rotor is their rotating part. The stator excited by the three-phase supply, and the rotor is excited by the DC supply.
- The term excitation means the magnetic field induces in the stator and rotor both of the motor. The main aim of the excitation is to convert the stator and rotor both into an electromagnet.
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Synchronous Motor |
Main features of synchronous motor:
- Synchronous motor is inherently not self-starting. They require some external means to bring their speed close to synchronous speed before they are synchronized.
- In constant supply frequency, they behave as constant speed motor irrespective of load condition.
- This motor has the unique characteristics of operating under any electrical power factor. This makes it is used in electrical power factor improvement.
Application of synchronous motor:
- Synchronous motor is inherently not self-starting. They require some external means to bring their speed close to synchronous speed before they are synchronized.
- In constant supply frequency, they behave as constant speed motor irrespective of load condition.
- This motor has the unique characteristics of operating under any electrical power factor. This makes it is used in electrical power factor improvement.
- Power factor correction
- Reciprocating pump
- rolling mills
- Voltage regulation
- Constant speed
- Constant load drives.
As an electrical, the electrical motor is an electro-mechanical device that converts electrical energy into mechanical energy.
What is a synchronous motor?
The definition of the synchronous motor states that, An AC motor in which at steady state, rotation of the shaft is in sync with the frequency of the applied current. The synchronous motor works as an AC motor but here the total number of rotation made by the shaft is equal to the interference multiple of the frequency of the applied current.
Working principle of synchronous motor
- The synchronous motor will work on the basic principle of magnetic locking.
- When two unlike strong unlike magnets poles are brought together in the motor. There exists a tremendous force of extraction between those two poles. In such a condition, the two magnets said to be magnetically locked.
- The stator and the rotor are two main parts of the synchronous motor. The stator is the stationary part of the motor while the rotor is their rotating part. The stator excited by the three-phase supply, and the rotor is excited by the DC supply.
- The term excitation means the magnetic field induces in the stator and rotor both of the motor. The main aim of the excitation is to convert the stator and rotor both into an electromagnet.
![]() |
Synchronous Motor |
Main features of synchronous motor:
- Synchronous motor is inherently not self-starting. They require some external means to bring their speed close to synchronous speed before they are synchronized.
- In constant supply frequency, they behave as constant speed motor irrespective of load condition.
- This motor has the unique characteristics of operating under any electrical power factor. This makes it is used in electrical power factor improvement.
Application of synchronous motor:
- Synchronous motor is inherently not self-starting. They require some external means to bring their speed close to synchronous speed before they are synchronized.
- In constant supply frequency, they behave as constant speed motor irrespective of load condition.
- This motor has the unique characteristics of operating under any electrical power factor. This makes it is used in electrical power factor improvement.
- Power factor correction
- Reciprocating pump
- rolling mills
- Voltage regulation
- Constant speed
- Constant load drives.
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