In testing a three-phase delta-connected...

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Question 1 of 205eccefa4bacbc34ba4d48538

In testing a three-phase delta-connected winding for an open circuit using an ohmmeter, what must be done?

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5eccefa4bacbc34ba4d48538

In testing a three-phase delta-connected winding for an open circuit using an ohmmeter, what must be done?

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🔍 Key Concepts

• Delta-connected three-phase windings and how the phases are tied together • How an ohmmeter measures resistance and what happens if a winding is shunted by other paths • Difference between testing a single phase winding versus testing with all connections intact

💭 Think About

• Think about what the ohmmeter is actually measuring when there are multiple parallel paths in a closed delta connection. • Ask yourself: if one phase is open, would the ohmmeter still show a low resistance because current can flow through the other two phases? • Which option best isolates each phase so that a single open in one phase will be detected by the ohmmeter?

✅ Before You Answer

• Verify which choice prevents parallel/shunt paths through the other windings during the test. • Check which method allows you to measure the resistance of only one phase at a time. • Eliminate any option that would keep all three windings permanently interconnected during the resistance test.

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Question 1 of 205eccefa4bacbc34ba4d48538

In testing a three-phase delta-connected winding for an open circuit using an ohmmeter, what must be done?

Back

Question 1 of 20

5eccefa4bacbc34ba4d48538

In testing a three-phase delta-connected winding for an open circuit using an ohmmeter, what must be done?

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