Large power transformers are critical pieces of equipment making the backbone of the transmission and distribution networks. Failure of a transformer can cause a complete shutdown, which can cost hundreds of thousands if not few million dollars in property damage as well as significant business interruption. The highly combustible oil in large transformers poses serious risk to surroundings in case of a fire. It can also provide clues to the complex investigation of the cause of failure.
Winding failures in transformers, large motors and other rotating machinery are among the most frequent and costly failures. These failures can occur for a number of reasons, ranging from ageing to large transients. Deterioration, loosening or displacement of windings as well as foreign objects and contamination/breakdown of oil are some of the causes that will be discussed in details.
This webinar looks at the failure mechanisms in transformers and the different techniques used to investigate losses that arise in conjunction with transformer failure.
