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Question 1 of 205eccefa4bacbc34ba4d4823c

What statement is TRUE concerning the speed of a synchronous AC propulsion motor?

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5eccefa4bacbc34ba4d4823c

What statement is TRUE concerning the speed of a synchronous AC propulsion motor?

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🔍 Key Concepts

• Synchronous AC motor speed equation and what "synchronous" means • Which part of the motor (stator vs rotor) is supplied with AC power in a typical synchronous propulsion motor • Relationship between supply frequency, number of poles, and synchronous speed

💭 Think About

• Ask yourself: In a synchronous AC motor, which windings are actually connected to the ship’s AC power bus – the stator or the rotor? • Think about the formula for synchronous speed in revolutions per minute (RPM). How does changing frequency in that formula affect speed? • Consider whether the rotor frequency is normally the controlled variable in shipboard AC propulsion, or if it follows what happens in the stator field.

✅ Before You Answer

• Identify which winding (stator or rotor) sets up the rotating magnetic field whose speed the rotor locks onto. • Recall that for a synchronous machine, the rotor speed is tied to the synchronous speed of the stator field, not slipping like an induction motor. • Check whether the relationship between frequency and speed in the synchronous speed formula is direct (both go up together) or inverse (one goes up while the other goes down).

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Question 1 of 205eccefa4bacbc34ba4d4823c

What statement is TRUE concerning the speed of a synchronous AC propulsion motor?

Back

Question 1 of 20

5eccefa4bacbc34ba4d4823c

What statement is TRUE concerning the speed of a synchronous AC propulsion motor?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

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