Question

Do AC motors have slip rings?

Answer 1

Hint: Here, an AC motor is defined as a motor that transforms the alternating current into mechanical power. There are two important parts of an AC motor such as the stator and the rotor. A slip ring is an electromechanical device that enables power and electrical information to be transferred from a static to a revolving structure.

Complete step by step solution:
We can say that the Slip rings are employed in an AC induction motor, also known as a wound rotor motor, to put a barrier into the rotor windings rather than to transmit power. Three copper slip rings are used in the motor. Each slip ring is attached to one of the three rotor winding phases. The brushes keep continual interaction with the slip rings as they spin with the rotor, transferring resistance to the rotor windings.

Therefore, the AC motors have slip rings (D).

Additional Information: Because of their versatility, efficiency, and ease of operation, alternating current motors are a power source for a range of applications. They are often seen in many appliances, equipment, and tools and are utilized on pumps, water heaters, garden equipment, and ovens. They are an exciting and interesting technology because they can readily fit into various applications.

Note: Many students generally think that slip rings are found in a DC motor but in reality split rings are present in DC motors. So, slip rings are present in Ac motors. Here, the main distinction between the slip ring and the split ring is that the slip ring is used to transmit power between the static and rotating parts. In contrast, the split ring is used in DC machines to reverse the polarity of the current.