Which consequence results when transient voltage exceeds MOV rating in a high-current distribution circuit?

💡 Explanation

Metal Oxide Varistors (MOV) use voltage clamping; exceeding their voltage rating results in dielectric breakdown creating a low impedance path and large heat dissipation because they shunt excess current. Therefore catastrophic circuit overvoltage dominates, rather than harmonic distortion or power factor errors, which arise from non-linear loads.

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