Which consequence often results when a high-voltage transformer experiences insulation breakdown?

💡 Explanation

Arcing initiates because reduced insulation resistance permits unintended current flow, resulting from dielectric breakdown and forming ionized channels. The voltage flashover path causes localized heating, therefore arcing occurs rather than magnetic field amplification or changing capacitance where no breakdown exists, or wave distortion which requires high-frequency variations.

• Which consequence results when excessive inductance causes transformer saturation?
• Which outcome occurs when Zeolite catalyst active sites are exposed to high sulfur concentrations during hydrocarbon cracking?
• Which consequence results when an irreversible catalyst poison contaminantes a packed bed reactor?
• Which consequence arises when maximum spatial separation prevents wavefunction overlap in an entangled pair of barium atoms used for quantum key generation?
• Which outcome sharply CURTAILS nuclear fusion inside a collapsing star, if the increased density elevates electron capture rates on certain isotopes?
• Which consequence occurs when rapid depressurization exceeds a liquid's vaporization rate?