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2. You are performing an insulation resistance test on a 480V,

 

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2. You are performing an insulation resistance test on a 480V, ungrounded, 3∅, Wye Generator with a Fluke 1507 insulation resistance tester. From the choices below which one represents a good insulation resistance test?

a. A-B 50 MΩ, A-C 48 MΩ. C-B 51 MΩ
b. A-Ground 50 MΩ, B- Ground 52 MΩ, C- Ground 49 MΩ
c. A- Neutral 2 MΩ, B- Neutral 0 MΩ, C-Neutral 0 MΩ
d. All combinations above Infinite.

Submitted: 707 days and 22 hours ago.
Category: Electrical
Value: $25
Status: CLOSED

Accepted Answer

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Expert:  Craig replied 707 days and 13 hours ago.


Craig :

The answer is : b

Expert TypeElectrical Technician
Category: Electrical
Pos. Feedback: 100.0 %
Accepts: 735
Answered: 5/11/2011

Experience: 33 years experience electrical troubleshooting industrial equipment and control systems.

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