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← TechnologyWhich risk increases when a power transformer's differential protection scheme desensitizes due to heavy current fault involving delayed breaker action?
A)Internal winding damage intensifies.✓
B)System voltage sags become excessive.
C)Feeder breaker trips are spurious.
D)Harmonic resonance becomes pronounced.
💡 Explanation
Increased risk of internal winding damage is the main result because differential desensitization suppresses fault current detection; therefore, the transformer faults intensify, rather than preventing issues like voltage sag unrelated to breakers or spurious tripping.
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