What is the function of the autotransformers...

Question 1 / 205eccefa4bacbc34ba4d4836c

Question 1 of 205eccefa4bacbc34ba4d4836c

What is the function of the autotransformers used with autotransformer starters used on some large AC motors?

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Question 1 of 20

5eccefa4bacbc34ba4d4836c

What is the function of the autotransformers used with autotransformer starters used on some large AC motors?

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🔍 Key Concepts

• Autotransformer starter purpose in large AC motor installations • Relationship between starting current, starting voltage, and starting torque in AC motors • Why large motors usually do not start across-the-line at full voltage

💭 Think About

• When you use an autotransformer for starting, does the motor initially see full line voltage or something different? How does that choice affect inrush (starting) current? • If you change the applied voltage to an induction motor, what happens to torque? Think about whether torque is proportional to voltage, current, or something else. • Among the answer choices, which option best matches the main electrical protection reason for using an autotransformer with a large motor?

✅ Before You Answer

• Recall that starting current of large induction motors can be very high at full voltage; what do engineers usually want to do about that? • Consider whether increasing the applied voltage is ever realistic for shipboard power systems, or whether the system is designed around a fixed line voltage. • Be sure the function you pick matches the phrase "used on some large AC motors", focusing on reducing stress on shipboard power systems during starting.

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Question 1 of 20

What is the function of the autotransformers used with autotransformer starters used on some large AC motors?

provide increased voltage for starting

provide increased torque for starting

provide reduced voltage for starting

provide speed control

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Question 1 / 205eccefa4bacbc34ba4d4836c

Question 1 of 205eccefa4bacbc34ba4d4836c

What is the function of the autotransformers used with autotransformer starters used on some large AC motors?

Back

Question 1 of 20

5eccefa4bacbc34ba4d4836c

What is the function of the autotransformers used with autotransformer starters used on some large AC motors?

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

— No credit card needed