In order to guarantee ideal test results we have installed two power supply units in the test cabinets, each with 15 kW electrical power. They not only serve as power source, but they can also simulate current collectors and for this they are designed in a bidirectional way.

To cool both supply units with a total performance of 30 kW, ventilation slots were planned at various places and supported in advance by calculations of the electrical power dissipation with a 3D model.

These two power supply units take over the complete control and connect the system to the SCADA system of the customer, which controls the whole testing station and changes settings.