Question 293Electricity & Electronics - QMED
70% to passWhat should be included in the performance of routine maintenance of dry-type transformers?
Ameasuring and recording the winding temperature with an accurate mercury thermometer
Bmaking sure that the units are close to bulkheads or corners to protect them from damage
Cperiodic cleaning of the winding insulation with an approved solvent
Dcleaning the windings, if accessible, with a vacuum cleaner or very low-pressure air
AI Explanation
The correct answer is D) cleaning the windings, if accessible, with a vacuum cleaner or very low-pressure air. This is the correct answer because routine maintenance of dry-type transformers typically involves periodically cleaning the windings and insulation to remove any accumulated dust or debris. Using a vacuum cleaner or very low-pressure air is a safe and effective way to clean the windings without damaging the insulation. The other options are either incorrect or not directly related to the routine maintenance of dry-type transformers.
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