Which risk increases when a transformer's load suddenly drops?

💡 Explanation

Ferroresonance can occur causing large voltage oscillations, because the sudden reduction in load causes the inductive reactance and the winding capacitance to form a resonant circuit. Therefore, ferroresonance results rather than copper losses, which decrease with lower load.

• Which consequence results from insufficient catalytic activity in hydrolysis?
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• Which mechanism causes arcing when a high-voltage DC circuit containing substantial inductance is rapidly opened?
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