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The Induction motor is known as _______________ motor
Singly Excited
Doubly Excited
excitation less
Self Excited
Singly Excited
The Induction motor is known as a Singly Excited motor because it requires only one supply winding to create the magnetic field. Unlike other types of motors, it does not need an external source for excitation.
The Induction motor is known as a Singly Excited motor because it requires only one supply winding to create the magnetic field. Unlike other types of motors, it does not need an external source for excitation.
╬жтИЭI тАФ Magnetic flux is proportional to current
╧Г=VPтАЛ=AngularVelocityTorqueтАЛ тАФ Represents efficiency in motors
The working principle of an Induction motor is based on the phenomenon of electromagnetic induction. When alternating current flows through the stator winding, it generates a rotating magnetic field that induces current in the rotor, causing it to turn.
Induction motors are widely used due to their simple design and robustness.
They operate on the principle of electromagnetic induction without any external excitation.
Low maintenance due to the absence of brushes.
Self-starting characteristic, making them convenient for various applications.
Less efficient compared to other types of motors under certain conditions.
High starting current may affect the power supply.
Used in industrial applications for driving heavy machinery.
Commonly found in HVAC systems and appliances.
The standard efficiency of an Induction motor can vary, but it generally ranges from 85% to 95%.
Option B is incorrect as it's 'Doubly Excited,' which pertains to synchronous machines with separate excitation for both stator and rotor.
A is correct тАФ The Induction motor is designated as a Singly Excited motor because it needs only one winding for excitation.
Understand the differences between induction motors and synchronous motors, particularly in terms of excitation methods for better exam preparation.