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Reconstruction of electrical substations 110/10 KW «Porshen»
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Reconstruction of electrical substations 110/10 KW «Porshen»

Power: 110/10 kV
The construction period: 07.2018 - 06.2019
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1 Type of
works
2 Reviews
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Technical
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City: Konotop, sums'ka oblast

1
Type of
works

Dismantling work :

  • dismantling the foundations of power transformers;
  • dismantling the existing oil receivers, oil pans, oil pipelines accidental discharge of transformer oil;
  • dismantling of reinforced concrete portals and busbars arrangement оf 110 kV;
  • dismantling of reinforced concrete cable trays;
  • dismantling of reinforced concrete racks of high-voltage equipment;
  • dismantling of old railway cross-country tracks.


Mounting and installation:

  • a new oil pipe for emergency oil drain, as well as foundations for SF6 gas circuit-breakers of 110 kV;
  • new portals for outdoor switchgear of 110 kV;
  • new foundations with oil receivers for power transformers;
  • new foundations with oil receivers for power transformers;
  • a new tray system of precast concrete.

Electrical work on the open switchgear of 110 kV:

  • installation of 2 power transformer of type TRDN 25000/110 kV ZTR;
  • installation of 2 gas-insulated 110 kV circuit breakers Siemens;
  • installation of 6 current transformers of 110 kV Arteche production on the prepared metal;
  • installation of 6 disconnectors of 110 kV manufactured by HVT;
  • installation of 8 surge suppressors of 110 kV manufactured by ABB;
  • busbar of outdoor switchgear equipment of 110 kV with AC 185/19 wire with a total length of 560 meters.

Electrical work on indoor switchgear of 10 kV:

  • replacement of 6 oil circuit breakers of 10 kV into VR-35 vacuum circuit breakers manufactured by RZVA with adaptation for withdrawable elements;
  • installation of current transformers of CT of 10 kV, voltage transformers of VT of 10 kV in the amount of 24 pcs. And the reconstruction of a rigid busbar of 10 kV;
  • completion of cable and wire products with a total length of about 22 km through an electrical conduit and substation equipment with subsequent wiring and connection;
  • reconstruction of the heating system of indoor switchgear of 10 kV, installation of lighting for indoor switchgear of 10 kV, and outdoor switchgear of 110 kV.
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