Differences between dry-type transformers and oil-immersed transformers and their advantages and disadvantages: in-depth analysis
Release time:
2024-04-01
First, let's look at dry-type transformers. Dry-type transformer is a transformer that does not use any oil as an insulating medium. It mainly relies on air convection and heat sink for cooling, so it has high fire resistance. This kind of transformer is simple to maintain, low operating cost, and has less impact on the environment. In addition, dry-type transformers perform well in terms of overload capacity, can withstand higher loads in a short period of time, and can respond well to sudden peaks in power demand. However, the heat dissipation performance of dry-type transformers is relatively weak, so they may face the risk of overheating during continuous high-load operation.
Next is the oil-immersed transformer. Oil immersed transformer is through the oil as the main medium of insulation and heat dissipation. Its internal coil is soaked in insulating oil and dissipates heat through the circulating flow of the oil. This kind of transformer has high operating efficiency and excellent heat dissipation performance, so that it can still maintain stability under continuous long-term operation. In addition, oil-immersed transformers are more economical in terms of cost and are widely used in various power systems. However, due to the use of oil as an insulating medium, oil-immersed transformers are slightly insufficient in terms of fire resistance and require regular maintenance and monitoring to prevent oil aging and leakage.
In general, dry-type transformers and oil-immersed transformers have their own unique advantages and disadvantages. Dry-type transformers are favored for their good fireproof performance and low operating cost, but their heat dissipation performance is relatively weak, while oil-immersed transformers are widely used for their efficient, stable operation and low economic cost, but they need more attention in fireproof performance. The choice of transformer depends mainly on the specific power demand, operating environment and cost budget and other factors.
With the continuous development of science and technology, two kinds of transformers are constantly improved and optimized. We look forward to more innovative technologies in the future to bring more efficient, safer and more environmentally friendly solutions to the power system.
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