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← ScienceWhich consequence results when water intrusion breaches transformer oil's limit?
A)Accelerated oxidation reaction, sludge formation✓
B)Reduced magnetic hysteresis, core saturation
C)Increased dielectric strength above operational limit
D)Enhanced convective cooling, stabilized temperatures
💡 Explanation
The oxidation reaction accelerates because hydrolysis cleaves ester bonds, forming acids promoting oxidation—a process known as saponification. Therefore, insulation degrades via sludge formation, rather than improved dielectric strength under wet conditions.
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