Which outcome occurs when current through a transformer's primary circuit abruptly ceases?

💡 Explanation

A sudden stop in primary current leads to a large voltage spike because the transformer experiences inductive kickback as the collapsing magnetic field attempts to sustain the current flow, therefore a dangerous voltage surge occurs rather than diminished eddy currents.

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• Which outcome results in a three-phase power distribution transformer when hysteresis losses increase excessively due to elevated operating temperatures?
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