In power transmission and distribution systems, oil-immersed transformers are widely used in power plants, substations, and distribution substations. In power plants, oil-immersed transformers step up the low voltage generated by generators to high voltage for long-distance transmission; in substations, they step down high voltage to appropriate levels for distribution to different users; and in distribution substations, they step down medium voltage to low voltage to provide daily electricity to residents and businesses.
In the industrial sector, oil-immersed transformers provide stable power for various industrial production equipment. Different industrial processes have different requirements for voltage and power quality, and oil-immersed transformers can be customized to meet the power needs of various industrial processes. For example, large-scale industrial enterprises such as steel, chemical, and metallurgical industries require large quantities of high-voltage, high-capacity electricity. Oil-immersed transformers can reliably provide this power, ensuring the continuity and stability of production processes.
Oil-immersed transformers also play an important role in commercial and residential electricity supply. In urban commercial areas, large commercial buildings such as shopping malls, office buildings, and hotels require large amounts of electricity. Oil-immersed transformers convert high-voltage grid power into voltage levels suitable for commercial equipment, ensuring the smooth operation of commercial activities. In residential communities, oil-immersed transformers step down medium-voltage power and distribute it to individual users, providing residents with safe and stable electricity.