If a three-phase induction motor is operated...

Question 1 / 205eccefa4bacbc34ba4d48214

Question 1 of 205eccefa4bacbc34ba4d48214

If a three-phase induction motor is operated under a light load and it develops an open in one of its supply lines, what will be the result?

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Question 1 of 20

5eccefa4bacbc34ba4d48214

If a three-phase induction motor is operated under a light load and it develops an open in one of its supply lines, what will be the result?

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🔍 Key Concepts

• Three-phase induction motor behavior when one line opens (single-phasing) • Effects of light load vs. heavy load during single-phasing • Changes in torque, vibration, and heating when a motor loses one phase

💭 Think About

• Think about what happens to the rotating magnetic field in a three-phase motor if one of the three supply lines is lost—does the field stay smooth or become unbalanced? • Under a light load, can the motor coast and keep turning even with a problem in the supply, or must it stop immediately? • How would unbalanced current in the remaining two phases affect torque, temperature, and mechanical smoothness of operation?

✅ Before You Answer

• Confirm what single-phasing means in a three-phase motor and whether the motor can still turn if already running under light load • Consider whether torque increases or decreases when one phase is lost, and how that would affect the ability to drive a load • Check whether unbalanced operation would more likely cause cooler operation or overheating and vibration

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Question 1 of 20

If a three-phase induction motor is operated under a light load and it develops an open in one of its supply lines, what will be the result?

the motor will speed up due to the reduced number of poles

the motor will run cooler due to reduced current flow

the motor will continue to run, but will vibrate and have reduced torque

the motor will stop

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Question 1 / 205eccefa4bacbc34ba4d48214

Question 1 of 205eccefa4bacbc34ba4d48214

If a three-phase induction motor is operated under a light load and it develops an open in one of its supply lines, what will be the result?

Back

Question 1 of 20

5eccefa4bacbc34ba4d48214

If a three-phase induction motor is operated under a light load and it develops an open in one of its supply lines, what will be the result?

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