You are in the process of paralleling two AC...

Question 1 / 205eccefa4bacbc34ba4d481b5

Question 1 of 205eccefa4bacbc34ba4d481b5

You are in the process of paralleling two AC generators and the synchroscope pointer has stopped at a position other than 0°. What does this indicate?

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Question 1 of 20

5eccefa4bacbc34ba4d481b5

You are in the process of paralleling two AC generators and the synchroscope pointer has stopped at a position other than 0°. What does this indicate?

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🔍 Key Concepts

• Synchroscope indication when pointer is moving vs. stopped • Relationship between pointer position, phase angle, and frequency difference • Conditions required to safely close the generator breaker when paralleling

💭 Think About

• What does a moving synchroscope pointer normally tell you about the frequency of the incoming generator compared to the bus? • If the pointer is not at 0° (12 o’clock) but has stopped moving, what does that tell you about the phase angle and about any difference in frequency? • Under what exact condition (pointer position and motion) is it safe to close the breaker, and how does this compare to the condition described in the question?

✅ Before You Answer

• Be clear on what 0° on the synchroscope (12 o’clock) represents physically between the two voltages. • Decide what a stopped pointer means in terms of frequency equality or difference. • Check which option correctly describes: same frequency, but with a fixed phase displacement vs. same phase with different frequencies.

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Question 1 of 20

You are in the process of paralleling two AC generators and the synchroscope pointer has stopped at a position other than 0°. What does this indicate?

The frequency of the incoming machine is the same as the bus frequency.

The incoming machine is in phase with the bus, but the frequency is not the same.

The circuit breaker needs to be reset.

There is an existing cross current between generators.

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Question 1 / 205eccefa4bacbc34ba4d481b5

Question 1 of 205eccefa4bacbc34ba4d481b5

You are in the process of paralleling two AC generators and the synchroscope pointer has stopped at a position other than 0°. What does this indicate?

Back

Question 1 of 20

5eccefa4bacbc34ba4d481b5

You are in the process of paralleling two AC generators and the synchroscope pointer has stopped at a position other than 0°. What does this indicate?

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