Which failure occurs when a liquid-cooled transformer hits transient overpower?

💡 Explanation

When oil in a transformer overheats due to transient overpower it will undergo a liquid to gas phase transition (boiling). The mechanism of vapor-core corona discharge follows, because the gas bubbles form void areas that lower breakdown voltage, therefore increasing electrical arcing rather than providing adequate cooling.

• Which outcome occurs when humidity reaches 100% during adiabatic expansion in an industrial cloud chamber?
• Which change results when a viscous fluid in a pipe exceeds a critical Reynolds Number?
• Which risk increases when precise atomic clocks aboard navigational satellites experience relativistic effects on spacetime?
• Which risk increases significantly when exceeding an engine's maximum Carnot efficiency?
• Which outcome occurs when UV radiation damages molecular DNA?
• Which outcome occurs when incompressible fluid viscosity increases in Bernoulli's equation for pipeline flow?