You are reconnecting a three-phase induction...

Question 1 / 205eccefa4bacbc34ba4d48212

Question 1 of 205eccefa4bacbc34ba4d48212

You are reconnecting a three-phase induction motor to the supply line. To prevent possible damage to the load, due to the wrong direction of rotation, what should be done?

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Question 1 of 20

5eccefa4bacbc34ba4d48212

You are reconnecting a three-phase induction motor to the supply line. To prevent possible damage to the load, due to the wrong direction of rotation, what should be done?

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🔍 Key Concepts

• Phase sequence of a three‑phase supply and its effect on motor rotation direction • How a phase rotation (sequence) indicator is used on both the supply and the motor leads • Why you must be certain of direction of rotation before full connection under load to avoid damage

💭 Think About

• Which option makes you verify both the supply’s phase sequence AND how the motor will rotate before you finally tie the motor leads into the line? • Which methods rely on indicators and markings (systematic and repeatable), and which rely on trial‑and‑error with the motor actually running? • On a ship, which procedure would be considered safest and most professional when reconnecting a critical three‑phase load?

✅ Before You Answer

• Make sure the method does not require running the motor at normal conditions without first knowing its rotation direction • Confirm that the procedure uses a proper phase‑sequence/rotation indicator, not just visual guessing or hand‑rotation • Check whether the steps include matching marked motor leads to the known phase order of the supply before energizing the motor on load

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Question 1 of 20

You are reconnecting a three-phase induction motor to the supply line. To prevent possible damage to the load, due to the wrong direction of rotation, what should be done?

connect the motor and then use the 'jog' button to determine the direction of rotation

connect the phase indicator to the motor leads, rotate the motor by hand and then connect to the supply voltage

connect the phase indicator to the supply voltage then connect the motor

check the supply line phase sequence and motor rotation with appropriate indicators, then connect correspondingly marked leads

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Question 1 / 205eccefa4bacbc34ba4d48212

Question 1 of 205eccefa4bacbc34ba4d48212

You are reconnecting a three-phase induction motor to the supply line. To prevent possible damage to the load, due to the wrong direction of rotation, what should be done?

Back

Question 1 of 20

5eccefa4bacbc34ba4d48212

You are reconnecting a three-phase induction motor to the supply line. To prevent possible damage to the load, due to the wrong direction of rotation, what should 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