Advantages and disadvantages of dry-type transformers and oil transformers

1, dry, oil-immersed transformers occasions What is the difference? What are the advantages and disadvantages of each? Which thermal performance good?
A: The dry cast resin transformer are usually used indoors, fire safety requirements are relatively high occasions. Oil-filled transformers are usually outdoors, of course, also be used indoors, but oil immersed transformer possible in the event of a fault injection and combustion, so indoor use more dangerous. Dry-type transformers are usually not spontaneous, but also high-quality products with flame retardant capabilities. Advantages of dry-type transformers are safe, clean, the disadvantage is the high price, large area, outdoor use difficult; the advantages of oil-immersed transformer is the voltage level can be very high, small footprint, using a wide range, the disadvantage is oil spills, pollution of the environment when failure. Two kinds of transformers follow different standards, temperature requirements are different, different heat dissipation structure is unfair. Structurally speaking, good oil-immersed transformer thermal performance.