What is meant by dielectric strength in transformers?

Dielectric strength in transformers refers to the maximum electric field that a material can withstand without experiencing breakdown or electrical failure. In the context of transformers, it is crucial for materials, such as transformer oil, to have high dielectric strength to prevent electrical discharges that could lead to equipment failure. This is why it’s essential to regularly test the dielectric strength of transformer oil using specific testers that measure its insulating properties. Ensuring that the dielectric strength is within acceptable limits guarantees the reliability and efficiency of transformer operations while preventing accidents. In my experience with Globecore products, using their advanced testers for dielectric strength assessment can provide accurate results, helping maintain optimal performance in transformers.