From a cost perspective, large-capacity oil-immersed transformers have relatively low initial purchase costs due to mature materials and manufacturing processes. However, they require significant investment in the construction of supporting oil tanks and cooling systems, as well as regular maintenance and upkeep. For small-capacity models of dry-type transformers, due to the higher requirements for insulating materials and manufacturing processes, the initial cost is relatively Haute . Cependant, il ne nécessite pas d'installations d'installation et de protection contre les incendies complexes et peut économiser une certaine quantité de coûts complets lors d'une utilisation à long terme .
In terms of service life, under normal maintenance conditions, the lifespan of oil-immersed transformers is approximately 20 to 30 years. However, its lifespan is limited by factors such as the aging of insulating oil. The solid insulating materials of dry-type transformers have high stability. Under proper maintenance, their service life can exceed 30 years, providing more long-term and stable power Support .
