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More important projects and volume of the work carried out by DIT-" Ltd.:
I) On the territory of Republic of Bulgaria

PAHPP CHAIRA:

  • Replacement of bushings 400 kV of Main Transformer No 1;
  • Assembly of Main Transformer No 2;

HYDROELECTRIC POWER STATION SANDANSKI

  • Revision and repair of power transformer 20 MVA, 110 kV;

HYDROELECTRIC POWER STATION LILYANOVO

  • Revision and repair of power transformer 25 MVA, 110 kV;


HYDROELECTRIC POWER STATION KRICHIM

  • Reconstruction and upgrading of cooling systems of two pieces generating transformers 50 MVA 10.5/121 kV;

THERMAL POWER PLANT SOFIA IZTOK

  • Repair of power transformer 1: 31.5 MVA, 6.3/20/110 kV;
  • Emergency repair of transformer 80 MVA, 110/21/6.3 kV;
  • Capital repair of power transformer 40 MVA, 110 kV;
  • Diagnostics and repair of turbogenerator 30 MW/10kV;
  • Revamping of transformer 31.5 MVA, 110 kV;
  • Diagnostics of turbo-generator 30 MW/10kV.;

THERMAL POWER PLANT SOFIA

  • Diagnostics of turbo-generator type -60-20;
  • Capital repair of auto-transformer 180MVA, 220/121 kV.

THERMAL POWER PLANT MARITZA EAST 2

  • Diagnostics of turbogenerator -165-2;
  • Reconstruction and replacement of on-load tap changers;
  • Diagnostics of autotransformer 180 MVA , 220/121 kV;
  • Repair of two pieces block transformers 180 MVA, 242/18 kV;
  • Repair of block transformer 180 MVA, 242/18 kV;
  • Reconstruction and upgrading of cooling systems of transformers for proper needs of blocks No 3, No 5, No 6, No 7, No 8 32 MV, 18/6.3-6.3 kV and 15.75/6.3-6.3 kV;
  • Reconstruction and upgrading of the protection against oil oxidation and protection against inner overpressure of block transformer 3:180 MV, 242/18 kV;
  • Dehumidifying of block transformer 5:250 MV,15.75/242 kV;
  • Replacement of the bushings HV of block transformer 6:250 MV , 242/18 kV;
  • Capital repair with replacement of the on-load tap changers contacts of transformers 21 and 22:32 MV, 18/6.3-6.3 kV;
  • Capital repair and upgrading of the construction with increasing the power by 10% of transformer 21:32 MV, 18/6.3-6.3 kV;
  • Capital repair and upgrading with increasing the power of block transformer 1:200 MV, 121/18 kV;
  • Inspection and assessing the volume of revamping of transformers 1, 21, 2, 22, manufactured by Zaporozhtransformator-Ukraine;
  • Revision of the on-load tap changer and the active part of transformer 30:31,5 MV, 110/6.3-6.3 kV by opening the transformer;
  • Revision of the on-load tap changer and the active part of transformer 10:40 MVA, 220/6.3-6.3 by opening the transformer.