Voltage Transformer for Office Building is used to convert incoming electrical power into suitable voltage levels for office lighting, HVAC systems, elevators, computer rooms, access control, and general building distribution. In office environments, stable voltage and low noise are important for both equipment protection and workplace comfort. Voltage Transformer for Office Building can be designed as dry type equipment for indoor electrical rooms, with customized voltage ratio, rated capacity, enclosure protection, cooling method, and temperature monitoring.