Commercial buildings： In large shopping malls, office buildings, hotels, supermarkets and other commercial buildings, there are a large number of lighting equipment, air conditioning systems, elevators, electronic equipment, etc. that require electricity. The power transformer converts the mains voltage into a voltage suitable for these equipment, ensuring Normal operations of commercial buildings.
Residential buildings：Power transformers are installed in the power distribution rooms of residential areas to reduce the voltage on high-voltage transmission lines to 0.4kV, providing 220V single-phase power and 380V three-phase power to residential households to meet various needs in residents’ daily lives. Electricity needs of electrical equipment.
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