How does fuel oil ignition affect transformer performance in power transformers?

Fuel oil ignition can significantly affect transformer performance in power transformers by introducing contaminants and increasing the risk of overheating. When fuel oil ignites, it can lead to the formation of carbon deposits and other byproducts that compromise the insulating properties of transformer oil. This degradation can result in reduced dielectric strength, increased risk of electrical faults, and ultimately, a decrease in the reliability and efficiency of the power transformer.