Which risk increases when a transformer operates past rated voltage?

💡 Explanation

Excessive voltage causes increased magnetic flux, which elevates core losses induced by eddy currents heating leading to higher temperature; this is because core saturation is reached, therefore eddy current losses increase rather than dielectric breakdown that requires sharp field gradients.

• Which consequence results when exceeding the Curie temperature in a nickel-iron magnetic shield?
• Which consequence occurs when a heat engine's exhaust cooling fails?
• Which outcome occurs when transmitted light loses coherence?
• Which outcome occurs when a non-polar molecular liquid is subjected to an increasing electric field?
• Which risk increases when a voltage induces electron transition to higher orbitals in a transistor?
• Which outcome results when an electron's wave function overlaps multiple quantum wells in a semiconductor heterostructure?