Modernization of the 110 / 20kV Sejny station

Elmont Grupa – Infrastruktura Energetyczna

This is the third time that we carry out modernization works at this station. The first time we equipped the station with a telemechanics system – 2008. During the works in 2011, we installed an automatic voltage regulator 20 / 20kV imported by us from the United States.

The current scope of work to be carried out included the:

  • delivery of HV and MV equipment, foundations and structures,
  • construction of a second 110kV switching station,
  • construction of TR2, TR1 stations,
  • construction of teletechnical sewage system,
  • construction of a 20kV busbar bridge,
  • construction of a TRU1, TRU2 station,
  • modernization of MV bays (TRU1 TRU2 i TR1 TR2),
  • 110kV line overvoltage with insulation replacement,
  • disassembly of old equipment of 110kV switching station,
  • delivery, assembly and commissioning of auxiliary cabinets,
  • delivery, assembly and commissioning of FR security cabinets,
  • execution of the technical protection system,
  • construction of area lighting, fibre optic lines and lightning protection system,
  • execution of sanitary installations,
  • construction of roads and station fencing,
  • post-completion documentation.


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