Excellent insulation and heat dissipation performance: Insulation oil has much higher insulation strength and thermal capacity than air, allowing oil immersed transformers to be designed with higher voltage levels and larger capacities.
High reliability: Mature technology and good protection measures ensure stable and reliable operation, with a long lifespan (usually up to 20-30 years or even longer).
Relatively low cost: In high-capacity, high-voltage applications, the cost is usually lower than that of dry-type transformers of the same specifications.
Strong overload capacity: The enormous thermal capacity of oil allows it to withstand short-term overload.
Suitable for harsh outdoor environments: Sealed fuel tanks can effectively prevent dust, moisture, and pollution, especially suitable for outdoor substation installation.
Oil immersed transformers play an indispensable role in power systems, especially in the field of high-power power transmission and distribution, due to their excellent insulation, heat dissipation capabilities, and mature technology.