As part of this project, the transformer with the end-of-life T203 will be renewed and will be replaced by a new transformer of higher performance due to insufficient infrastructure and network capacity for increased demands for electricity supply and thus will be innovated and capacity increased for the connection areas of the Sokolnice substation. The proposed action supports the concept of using transformers to strengthen the transformation power of PS/DS in the Sokolnice node. The event is thus in line with the policy of recovery and development of PS a. a.