You are attempting to parallel two AC...

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Question 1 of 205eccefa4bacbc34ba4d481b3

You are attempting to parallel two AC generators and the synchroscope pointer stops at a position other than 0°. What would happen if you close the circuit breaker at this position?

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5eccefa4bacbc34ba4d481b3

You are attempting to parallel two AC generators and the synchroscope pointer stops at a position other than 0°. What would happen if you close the circuit breaker at this position?

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🔍 Key Concepts

• Synchronizing AC generators: voltage, frequency, and phase angle must match before closing the breaker • Synchroscope reading: what 0° means and what it means when the pointer is off 0° • Cross current and torque between machines when they are out of phase

💭 Think About

• Think about what it physically means if you connect two AC sources that are not in phase with each other. • Consider whether the problem is about load sharing, frequency difference, or the instantaneous phase angle at the moment of closing. • Ask yourself what kind of current will flow if the voltages are equal in magnitude but not aligned in phase.

✅ Before You Answer

• Verify what the synchroscope pointer position represents: phase angle between bus and incoming generator. • Check which choice mentions a condition caused by out-of-phase closing, not just wrong load sharing or frequency alone. • Consider whether the most immediate effect is on load distribution or on circulating current/torque between the machines.

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Question 1 of 205eccefa4bacbc34ba4d481b3

You are attempting to parallel two AC generators and the synchroscope pointer stops at a position other than 0°. What would happen if you close the circuit breaker at this position?

Back

Question 1 of 20

5eccefa4bacbc34ba4d481b3

You are attempting to parallel two AC generators and the synchroscope pointer stops at a position other than 0°. What would happen if you close the circuit breaker at this position?

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