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Which outcome occurs when a differential relay misinterprets magnetizing inrush current in a power transformer?

A)Spurious breaker tripping occurs
B)Transformer core saturation worsens
C)Increased harmonic distortion appears
D)Decreased transformer winding impedance

💡 Explanation

Spurious tripping arises because the differential relay interprets inrush as a fault, activating circuit breakers through its protection logic; therefore, interrupting power service rather than maintaining stability if it were an over-flux; magnetizing inrush occurs during energization.

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