Abstract: Systems and methods for transformer cooling by vertical airflow are described. One embodiment of an air transfer unit includes an assembly frame that includes an interior portion and defines a lateral side, an upper side, and a lower side, where the assembly frame includes a length that is substantially the same as a width of a plurality of cooling fins on a transformer. Some embodiments include a plurality of air directing apparatuses that are positioned in the interior portion and are aligned along the length of the assembly frame, where the plurality of air directing apparatuses receive airflow from the lateral side and direct the airflow vertically through the upper side to further cool the plurality of cooling fins. Similarly, some embodiments include an exhaust screen that is coupled to the upper side, wherein the exhaust screen further consolidates the airflow vertically toward the plurality of cooling fins.

Abstract: Systems and methods for liquid heat exchange for transformers are described. One embodiment of a fluid heat exchanger includes a transformer inlet port that is coupled to a transformer chamber and receives a dielectric fluid from the transformer chamber. Also included are a cooling fluid inlet for receiving a cooling fluid and a finned heat sink that includes a fluid communicator. The fluid communicator may receive, at a first chamber, the dielectric fluid from the transformer inlet port and directs the dielectric fluid across a first plurality of cooling fins. The fluid communicator may receive, at a second chamber, the cooling fluid from the cooling fluid inlet and may direct the cooling fluid across a second plurality of fins, where the fluid communicator separates the first chamber from the second chamber with a solid divider.