The Difference Between Dry-Type and Oil-Filled Transformers (3)
Those are the main differences that exist between the oil-filled and dry-type transformers. Your choice of transformer will depend on your safety requirements and the budget set aside for the purchase.
Although these differences are accepted as general rules, be on the lookout for exceptions. Many leading manufacturers of transformers are making huge advances in the technology used to create them. There is a big push towards the use of non-flammable, liquid-filled transformers that use naturally degradable fluids like veggie oils and animal fats. They are safer for the environment and are still more efficient than dry-type transformers. Look out for these changes to take place in the near future.
Whether you are buying an oil-filled transformer or a dry-type transformer, you always want to choose a reliable source that provides the best products on the market for a good price. You will need to look at your installation and safety requirements when making your final decision.