Electric Motors

How does the star configuration affect the voltage across each coil in an induction motor?

• Increases the voltage to 400 volts

• Keeps the voltage constant at 400 volts

• Has no effect on the voltage

• Reduces the voltage to 230 volts

What is the primary function of the shaft in an induction motor?

• To connect and drive mechanical components like pumps

• To generate electrical energy

• To cool the motor

• To support the stator

What role does the fan play in an induction motor?

• Transfers mechanical energy

• Cools the motor by blowing air over the casing

• Supports the rotor

• Generates electricity

Why are the rotor bars in a squirrel cage motor often skewed?

• To distribute the magnetic field evenly

• To reduce the efficiency of the motor

• To increase electrical resistance

• To improve the motor's aesthetic appearance

What is the purpose of using a delta configuration in an induction motor?

• To reduce the motor's power consumption

• To simplify the motor's design

• To allow electricity to flow between phases as electrons reverse direction

• To decrease the voltage across each coil