Some large A.C. motors are equipped with...

Question 1 / 205eccefa4bacbc34ba4d4827c

Question 1 of 205eccefa4bacbc34ba4d4827c

Some large A.C. motors are equipped with heaters. These could be __________. resistance heaters bolted directly to the frame low voltage windings embedded in the motor windings

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Question 1 of 20

5eccefa4bacbc34ba4d4827c

Some large A.C. motors are equipped with heaters. These could be __________. resistance heaters bolted directly to the frame low voltage windings embedded in the motor windings

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🔍 Key Concepts

• Space heaters in large electric motors and why they are used • Differences between separate resistance heaters and auxiliary (low-voltage) windings • How condensation prevention is accomplished in idle A.C. motors

💭 Think About

• Think about how you could keep the inside of a large motor warm and dry when it is secured/not running. • Ask yourself: can heat be safely applied from both outside the main windings and from within them, and what would each method look like in practice? • Consider typical shipboard practice: what types of anti-condensation heaters have you seen or read about in large motors and generators?

✅ Before You Answer

• Verify whether bolt-on resistance heaters on the frame are a recognized method of preventing condensation in machinery spaces. • Verify whether special low-voltage heater windings embedded in the stator are also used for this same purpose. • Make sure you are not confusing running (operating) windings with separate, dedicated heater or anti-condensation windings.

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Question 1 of 20

Some large A.C. motors are equipped with heaters. These could be __________. resistance heaters bolted directly to the frame low voltage windings embedded in the motor windings

I only

II only

either I or II

neither I nor II

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Question 1 / 205eccefa4bacbc34ba4d4827c

Question 1 of 205eccefa4bacbc34ba4d4827c

Some large A.C. motors are equipped with heaters. These could be __________. resistance heaters bolted directly to the frame low voltage windings embedded in the motor windings

Back

Question 1 of 20

5eccefa4bacbc34ba4d4827c

Some large A.C. motors are equipped with heaters. These could be __________. resistance heaters bolted directly to the frame low voltage windings embedded in the motor windings

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