At December 2019 the design office of Transconverter LLC completed the development of one-of-a-kind PS150 UHL4 converter for power supply of VelNII electromagnetic shake table.

The PS150 UHL4 converter forms from the three-phase voltage 400 V, 50 Hz the output single-phase voltage of effective value from 0 to 250 V and of frequency from 0 to 50 Hz.

This device has a maximum output power 250 kVA and is meant for replacement of current outmoded electric machine assembly having an unstable frequency of output voltage and a low efficiency.

The PS150 UHL4 converter passed the test cycle successfully and installed in VElNII.