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The function of a expansion tank (Conservator) in a power transformer is to:

AFilter out moisture from ambient air
BPrevent overvoltage transients
CTake up expansion and contraction of transformer oil during temperature changes
DCool the winding insulation directly

Explanation

The conservator provides space for oil to expand and contract smoothly as load and temperature fluctuate.

Submitted by: mcqstutor Team More Electrical Engineering MCQs →

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