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Which of the following motor has simplest and rugged construction?
Squirrel Cage Motor (Three-phase induction motor)
Wound Rotor Motor (Three-phase induction motor)
Synchronous Motor
DC Motor
Squirrel Cage Motor (Three-phase induction motor)
The Squirrel Cage Motor, which is a type of three-phase induction motor, has the simplest and most rugged construction among the listed options. It consists of a rotor that is made of laminated iron and a simple cylindrical structure, making it highly durable and easy to manufacture.
The Squirrel Cage Motor, which is a type of three-phase induction motor, has the simplest and most rugged construction among the listed options. It consists of a rotor that is made of laminated iron and a simple cylindrical structure, making it highly durable and easy to manufacture.
This motor operates based on the principle of electromagnetic induction. When alternating current flows through the stator winding, it creates a rotating magnetic field, which induces current in the rotor and produces torque to turn the rotor. The rotor bars are short-circuited at both ends, providing a robust and maintenance-free operation.
The rotor of a Squirrel Cage Motor is designed to be short-circuited, enhancing its simplicity.
It does not require brushes or slip rings, making it more reliable and easier to maintain.
Robust construction leading to less wear and tear.
Lower maintenance due to the absence of brushes.
Reduced starting torque compared to wound rotor motors.
Less adaptable in terms of speed control.
Used in industrial applications for fans, pumps, and conveyors.
Common in domestic appliances like washing machines.
The Squirrel Cage Motor has a lower cost of production compared to other motor types.
Option B (Wound Rotor Motor) has a more complex design due to the need for external resistors.
A is correct тАФ The Squirrel Cage Motor is known for its simplicity and ruggedness in construction.
Understanding the construction and working principle of motors can help in identifying their applications and advantages in competitive exams.