With regard to the maintenance of electrical...

Question 1 / 205eccefa4bacbc34ba4d484c4

Question 1 of 205eccefa4bacbc34ba4d484c4

With regard to the maintenance of electrical generating machines with insulated pedestal bearings, what practice should be avoided?

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Question 1 of 20

5eccefa4bacbc34ba4d484c4

With regard to the maintenance of electrical generating machines with insulated pedestal bearings, what practice should be avoided?

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🔍 Key Concepts

• Insulated pedestal bearings are designed to prevent stray electrical currents from passing through the bearing surfaces • Stray current through bearings can cause pitting, overheating, and premature failure • Proper maintenance focuses on keeping the insulation effective, not defeating or masking it

💭 Think About

• Which option describes an action that would defeat or bypass the electrical insulation of the pedestal bearing rather than protect it? • Think about whether cleaning versus coating or contaminating an insulated surface is more likely to maintain its insulating properties. • Which practice could cause an unintended conductive path or hide damage in the insulated area over time?

✅ Before You Answer

• Identify which choice could reduce or short out insulation instead of preserving it. • Consider whether grease or paint on an insulated surface might change its electrical characteristics or hide defects. • Verify which practices are generally acceptable for checking insulation (such as megohmmeter use) when done under proper conditions.

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Question 1 of 20

With regard to the maintenance of electrical generating machines with insulated pedestal bearings, what practice should be avoided?

touching the bearing shell while the machine is running

cleaning and removing grease from the insulated area

painting or allowing grease build up on the insulated area

using a megohmmeter with the machine disassembled to determine insulation values

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Question 1 / 205eccefa4bacbc34ba4d484c4

Question 1 of 205eccefa4bacbc34ba4d484c4

With regard to the maintenance of electrical generating machines with insulated pedestal bearings, what practice should be avoided?

Back

Question 1 of 20

5eccefa4bacbc34ba4d484c4

With regard to the maintenance of electrical generating machines with insulated pedestal bearings, what practice should be avoided?

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