If a 12-pole three-phase synchronous...

Question 1 / 205eccefa4bacbc34ba4d48175

Question 1 of 205eccefa4bacbc34ba4d48175

If a 12-pole three-phase synchronous alternator is operating at 590 rpm, what will be its output frequency?

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Question 1 of 20

5eccefa4bacbc34ba4d48175

If a 12-pole three-phase synchronous alternator is operating at 590 rpm, what will be its output frequency?

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🔍 Key Concepts

• Relationship between mechanical speed (rpm) and electrical frequency (Hz) in synchronous machines • Formula for synchronous speed of a 3-phase alternator using the number of poles • How to convert rpm (revolutions per minute) to rps (revolutions per second) conceptually

💭 Think About

• Which formula links frequency, speed, and number of poles in a synchronous alternator? Write it down before doing any calculations. • First, express the given rpm in the formula directly, then plug in the number of poles and see what frequency range you get. • Compare your computed value to the answer choices and think: is the result likely to be slightly below, at, or slightly above 60 Hz based on the given rpm?

✅ Before You Answer

• Be sure you are using the correct formula for synchronous frequency in a multipole machine, not the one for 2-pole only. • Check that you keep units consistent (rpm vs Hz) when applying the formula. • After calculating, verify that your answer is very close to one of the options; if it is not, recheck the number of poles used in your formula.

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Question 1 of 20

If a 12-pole three-phase synchronous alternator is operating at 590 rpm, what will be its output frequency?

58 Hz

59 Hz

60 Hz

61 Hz

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Question 1 / 205eccefa4bacbc34ba4d48175

Question 1 of 205eccefa4bacbc34ba4d48175

If a 12-pole three-phase synchronous alternator is operating at 590 rpm, what will be its output frequency?

Back

Question 1 of 20

5eccefa4bacbc34ba4d48175

If a 12-pole three-phase synchronous alternator is operating at 590 rpm, what will be its output frequency?

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