If the energy input is significantly reduced...

Question 1 / 205eccefa4bacbc34ba4d481ae

Question 1 of 205eccefa4bacbc34ba4d481ae

If the energy input is significantly reduced to the prime mover of one shipboard alternator operating in parallel with others, what will happen to that alternator?

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Question 1 of 20

5eccefa4bacbc34ba4d481ae

If the energy input is significantly reduced to the prime mover of one shipboard alternator operating in parallel with others, what will happen to that alternator?

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🔍 Key Concepts

• Parallel operation of alternators and how they share load based on prime mover input (mechanical power) • What happens to an alternator’s kW (real power) output when its driving torque is reduced while frequency and voltage are held by the bus • The difference between an alternator generating power vs motorizing (acting as a synchronous motor) when its mechanical input is too low

💭 Think About

• Think about what keeps an alternator in step with the other machines when they are all tied to the same bus. Can its speed (frequency) change much on its own? • If you keep the alternator connected to the switchboard, and you reduce the mechanical power from its prime mover, where does the electrical power to keep it spinning at system frequency come from? • At the moment where its mechanical input is less than its electrical output, is the alternator pushing power to the bus or is the bus pushing power into the machine?

✅ Before You Answer

• Verify that on a common bus, frequency and speed are effectively fixed by the system, not by one machine whose power is reduced • Check which option correctly describes a machine that is still synchronized to the bus but now has insufficient mechanical input, and what naturally happens in protection terms • Eliminate any option that implies the alternator can freely change speed/frequency while it remains connected in parallel to the other alternators

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Question 1 of 20

If the energy input is significantly reduced to the prime mover of one shipboard alternator operating in parallel with others, what will happen to that alternator?

continue to operate at no load

lose its load and over speed

begin to motorize and then trip out

slow down and operate at reduced load

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Question 1 / 205eccefa4bacbc34ba4d481ae

Question 1 of 205eccefa4bacbc34ba4d481ae

If the energy input is significantly reduced to the prime mover of one shipboard alternator operating in parallel with others, what will happen to that alternator?

Back

Question 1 of 20

5eccefa4bacbc34ba4d481ae

If the energy input is significantly reduced to the prime mover of one shipboard alternator operating in parallel with others, what will happen to that alternator?

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