What would be the effect of carrying field...

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Question 1 of 205eccefa4bacbc34ba4d48235

What would be the effect of carrying field excitation excessively high on a synchronous motor?

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5eccefa4bacbc34ba4d48235

What would be the effect of carrying field excitation excessively high on a synchronous motor?

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🔍 Key Concepts

• Synchronous motor power factor control using field excitation • Relationship between field current, stator current, and heating in windings • What happens to a synchronous motor when it is overexcited vs underexcited

💭 Think About

• Think about how increasing field excitation affects the motor’s reactive power: does overexcitation make the motor act more like an inductor or a capacitor? • If field excitation is made very high, what happens to the magnitude of the armature (stator) current and associated I²R losses? • Does changing field excitation alone normally change synchronous speed, or does it mainly affect power factor and current?

✅ Before You Answer

• Verify whether synchronous speed is fixed by supply frequency or by field excitation. • Consider which option is most directly related to increased current and I²R losses when the machine is overexcited. • Eliminate any choices that describe behaviors more typical of a motor that loses synchronism or has mechanical speed instability, rather than electrical overexcitation effects.

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Question 1 of 205eccefa4bacbc34ba4d48235

What would be the effect of carrying field excitation excessively high on a synchronous motor?

Back

Question 1 of 20

5eccefa4bacbc34ba4d48235

What would be the effect of carrying field excitation excessively high on a synchronous motor?

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