Which failure increases when utility grid load imbalances induce significant neutral currents?

💡 Explanation

Transformer core saturates because excessive neutral current creates a DC bias, leading to increased magnetizing current through the core's B-H curve. Therefore, saturation is the most likely core failure, rather than line sag, which is a thermal expansion effect.

• Which consequence arises in aircraft wing design when exceeding the critical Mach number?
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• Which outcome occurs when significant harmonic distortion exists on a three-phase power system?
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