Transformer station with improved cooling

摘要

The subject of the invention relates to a transformer station with improved cooling, which has a basic body (10) containing in it an internal space (15) bordered by a foundation (11) made from a post-hardening material at least a part of which is under ground level, side walls (12) and a roof (14), the internal space (15) of the basic body (10) contains a transformer chamber (17), a switching area (16) separated from it with a dividing wall (13), and a ventilation passage linking the internal space (15) with the external environment, and located on the roof (14) of the basic body (10) there is an access opening (14a) with a cover (14b), and a grid at least partially covering the ventilation passage. The characteristic feature of the invention is that the grid is separated into an inlet grid (14c) and an outlet grid (14d) by a gap (T), while the ventilation passage is divided into separately arranged inlet air duct (18) and outlet air duct (19), where the inlet air duct (18) is located between the inlet grid (14c) on the roof (14) and the lower part (16b) of the switching area (16) of the internal space (15), while the outlet air duct (19) is located between the outlet grid (14d) on the roof (14) and the upper part (17a) of the transformer chamber (17), in this way the inlet air duct (18) and the outlet air duct (19) are arranged on the two sides of the dividing wall (13), and located in the dividing wall (13) there is a passage opening (13b) permitting the flow of air between the inlet air duct (18) and the outlet air duct (19).