Which equipment failure occurs when a power transformer's internal protection relay fails to activate during a short circuit fault?

💡 Explanation

A persistent overcurrent happens because the breaker tripping *circuit* does not activate; *differential protection fails*, leading to sustained fault current, which damages equipment. Therefore the overcurrent persists rather than being interrupted, while voltage and frequency remain affected downstream.

• Which outcome arises when excessive fuel accumulates in an internal combustion engine's catalytic converter?
• Which risk increases in a fuel injection system when fuel temperature exceeds its Reid Vapor Pressure (RVP) specification?
• Which risk increases when impedance mismatches occur in a high-frequency transmission circuit?
• Which failure is indicated when mobile robot LiDAR sensors experience prolonged vibration?
• Which outcome occurs when an aircraft’s landing gear extends above V_LO (landing gear operating speed)?
• Which risk increases when a turbocharger operates constantly at maximum compressor speed?