Construction of Rotor
A rotor of an electrical machine such as motor consists of following important parts:
- Rotor Core
- Rotor Shaft
- Rotor Windings
- Slip Rings
- Brushes
- Rotor Conductors
- Rotor Core: It is the central part of the rotor assembly. It is made up of thin steel laminated to reduce eddy current losses. Rotor core provides a path for magnetic flux generated via stator windings. The parameters such as efficiency, performance vary with the designing of the core.
- Rotor Shaft: It is connected with the rotor core. It provides support and motion to the rotor assembly. It is generally a steel cylindrical shaft made to withhold the mechanical stress and load during the operation of machine. Proper alignment and balance are necessary for proper functioning of a rotor.
- Rotor Windings: Rotor windings are the coils/wire wounded around the rotor core. These windings are necessary as they interact with magnetic field generated by the stator windings which in turn produces torque in the machine. The windings vary as per the type of rotor used in the machine.
- Slip Rings: Slip rings are an essential part of rotor construction. They help in transferring electrical signals between rotor windings and stator windings. They are an integral part of wound type of rotor.
- Brushes: Brushes also play an integral part in wound type rotor construction. They help in transferring electrical or power signals between rotating and stationary parts of the machine.
- Rotor Conductors: They help in conduction of electrical current. They have an integral role in construction of wound type rotor machine.
What is Rotor?
Rotors are a fundamental part of electrical machines and play an important role in their operation. Rotor is the rotating part of an induction motor. It is connected to the mechanical load through the shaft. There are various designs of rotors available on the basis of application and type of machine, such as squirrel cage or wound type.
In this article we will go through the definition of the Rotor with its construction in detail with its diagram, we will also go through the classification of Rotors and difference between stator and rotor, At last we will conclude our article with some of its applications and FAQs.
Table of Content
- What is Rotor?
- Construction of Rotor
- Working of Rotor
- Classification of Rotors
- Difference Between Stator and Rotor
- Applications of Rotors