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Which of the following is the most important quality required for chemical in breather, so that it can be used perfectly in an electrical transformer?

Which of the following is the most important quality required for chemical in breather, so that it can be used perfectly in an electrical transformer? Correct Answer Absorbing moisture

Most of the power generation plants use silica gel breathers fitted to the conservator of oil filled transformers. The purpose of silica gel breathers is to absorb the moisture in the air sucked in by the transformer during the breathing process.

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The chemical used in breather for transformer should have the quality of
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What is the material used inside the breather to prevent moisture entering the transformer?
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