Which of the following methods should be...

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Question 1 of 205eccefa4bacbc34ba4d48535

Which of the following methods should be used to test for an 'open' stator winding coil in a wye-connected AC squirrel cage induction motor?

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5eccefa4bacbc34ba4d48535

Which of the following methods should be used to test for an 'open' stator winding coil in a wye-connected AC squirrel cage induction motor?

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🔍 Key Concepts

• Stator winding tests with an ohmmeter on a wye-connected (star-connected) motor • Difference between checking for a grounded winding (short to the frame/shaft) vs checking for an open coil (break in the circuit) • Purpose and normal use of a growler when testing motor windings

💭 Think About

• Ask yourself: When a coil is open, are you trying to detect continuity between two winding leads, or between a winding and the motor frame/shaft? • Think about what readings you would expect from an ohmmeter when comparing the three phase windings of a healthy wye-connected motor vs one with an open coil. • Consider what a growler is mainly used to detect: does it better reveal shorted turns or broken (open) turns, and how would the sound or vibration typically change?

✅ Before You Answer

• Verify which test method actually compares the resistance between the three phase windings to find an imbalance. • Confirm whether placing a meter lead on the shaft/frame is aimed at finding a ground fault rather than an open circuit in a coil. • Recall that a growler is primarily used to find shorted turns, and think about whether the question is asking about shorts or opens.

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Question 1 of 205eccefa4bacbc34ba4d48535

Which of the following methods should be used to test for an 'open' stator winding coil in a wye-connected AC squirrel cage induction motor?

Back

Question 1 of 20

5eccefa4bacbc34ba4d48535

Which of the following methods should be used to test for an 'open' stator winding coil in a wye-connected AC squirrel cage induction 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?

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