Transformer explosions can be found on Internet almost on a daily basis, and the consequences vary for each of them. The risks cannot be denied. Insurers and risks managers consider the transformers as critical due to the consequences that a failure can lead to.

It has been observed on many occasions:

• Damaged Plants and substations damaged
• Outage that can reach several months, leading to loss of production
• Large fire becoming wild, devasting the environment, residential areas and industries
• Outstanding investment loss, especially loss of production often not covered in the insurance contract
• Insurance Premium Increase
• Human life risks, up to injuring or killing people
• Environmental pollution, as transformers contain several tons of oil
• Communities and Political consequences, which can lead to plant closure
• People evacuation in buildings, plants, hospital, hotels, etc.

Transformer explosion risks should not be neglected. Transformers should all follow the National Fire Protection Association recommendations NFPA 850, which include a Fast Depressurization System.