On 27th of June 2012 the acceptance commission has given the letter “O1” to the design documentation package of IPBS26 380/110ZU U2 DC stabilized voltage power supply unit for on-board grid of EP2K DC passenger locomotive.

In June 2012 ООО “Transconverter” finished preparation of the declaration about conformity of EVB51 Y1 auxiliary supply converter to requirements of safety Norm NB ZT CL-CT 139-2003.