What is meant by the synchronous speed of an...

What is meant by the synchronous speed of an...

Question 1 of 270705eccefa4bacbc34ba4d481f0

What is meant by the synchronous speed of an AC induction motor?

Question 1 of 27070

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What is meant by the synchronous speed of an AC induction motor?

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🔍 Key Concepts

• AC induction motor basic parts: stator vs. rotor • How the rotating magnetic field is related to line frequency (in Hz) and number of poles • Difference between synchronous speed and actual rotor speed (slip)

💭 Think About

• Think about which part of the motor actually locks directly to the supply frequency: the rotor or the magnetic field in the stator? • How is synchronous speed usually calculated from line frequency and number of poles? (Recall the formula often given in RPM.) • Which term describes the difference between synchronous speed and rotor speed, expressed as a percentage?

✅ Before You Answer

• Identify which option refers specifically to a speed in RPM, not a percentage or a frequency in Hz • Make sure you can clearly distinguish rotor mechanical speed from the speed of the rotating magnetic field • Confirm that slip is the difference between two speeds, not itself the definition of synchronous speed