Which of the following statements describes...

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Question 1 of 2066636ef128f7522a1c52340f

Which of the following statements describes what will occur if the motor torque-speed and currentspeed curves shown in the illustration is required to carry 150% of full load? Illustration EL-0056

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Question 1 of 20

66636ef128f7522a1c52340f

Which of the following statements describes what will occur if the motor torque-speed and currentspeed curves shown in the illustration is required to carry 150% of full load? Illustration EL-0056

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🔍 Key Concepts

• Torque-speed curve for an induction motor and what happens when load torque increases above rated torque • Relationship between slip and motor load (how speed changes as load increases) • How stator current varies with slip and load on the current-speed curve

💭 Think About

• On the torque-speed graph, locate the point for rated torque, then find where 150% of rated torque lies. What happens to the motor speed at this higher torque? • Compare the speed at rated torque to the speed at the higher torque. From that change in speed, what happens to slip? • On the current-speed graph, if the motor slows down (more slip), what trend do you see for stator current as you move toward lower speeds?

✅ Before You Answer

• Be sure you know that slip increases when rotor speed moves farther below synchronous speed. • Confirm on the current-speed curve that current is highest at low speed / high slip and lowest near synchronous speed. • Verify that none of the curves in the figure actually "coincide"; instead, they are separate curves showing how torque and current change with speed.

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Question 1 of 2066636ef128f7522a1c52340f

Which of the following statements describes what will occur if the motor torque-speed and currentspeed curves shown in the illustration is required to carry 150% of full load? Illustration EL-0056

Back

Question 1 of 20

66636ef128f7522a1c52340f

Which of the following statements describes what will occur if the motor torque-speed and currentspeed curves shown in the illustration is required to carry 150% of full load? Illustration EL-0056

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

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