Ennskraft

PROjEcT

New planning and construction of a transformer cooling system using air and backwater cooling.

TAsk / PROBLEM

In the St. Pantaleon Enns power plant, transformers are used to convert the generator voltage from medium to high voltage, and their permissible temperature is exceeded during peak loads. Therefore, the grid operator requested an air conditioning system in the transformer room to bring the transformers back into their ideal operating range. To keep the energy input as low as possible, the requirement was a combination of air and water cooling.

solution

The cooling requirements of the transformers were met by a combination of air coolers, which compensate for the base load, and water cooling to cover the peak outputs. In addition to the minimum energy consumption, the requirement was for the lowest possible consumption of the accumulated cool head water.  In the course of implementation, two digital controllers were integrated in a programmable logic controller to ensure optimum cooling while minimizing water consumption. In order to be able to observe and change the behavior of the plant, the entire plant was visualized.