Project: Reconstruction of  TS TRAYAL 35/10 kV, 1x8MVA with expanding capacites to 2x8MVA

Year of execution:  2016./2017.

Investment and end user:  Cooper Tire & Rubber Company Serbia d.o.o. Kruševac

In 2016. implementation of the project of reconstruction of  TS 35/10 kV was started, with an aim to replace the outdated medium voltage equipment and increase the capacity of the transformer station. The scope of reconstruction included supply and installation of a new  MV 10kV and 35kV plant, supply and installation of a new oil power transformer,  supply and installation of a new cabinet for general consumption and implementation of visualization system.

In the course of the project implementation, the following actions were completed:

  • Preparation of project for execution;
  • Reconstruction of connections and replacement of cable connections at the 10kV and 35kV side of the existing transformer;
  • supply and installation of new oil transformer made in accordance with IEC 60076 35±2×2,5%/10,5 kV, 8MVA;
  • preparation of connections and cable links at the 10kV and 35kV side of the new transformer;
  • demounting of the existing MV 35kV plant and supply and installation of the new MV 35kV plant – type SM6, manufactured by Schneider Electric;
  • demounting of the existing MV 10kV plant and supply and installation of the new MV 10kV plant – type SM6, manufactured by Schneider Electric;
  • supply and installation of cabinets for own consumption and upgrading the equipment in the rack cabinet;
  • design of systems for visualisation of measuring results using integrated measuring devices at 10 kV  and  35 kV voltage level in  TS 35/10 kV/kV and keeping of data;
  • functional testing of the plant, adjustment and testing of relay protection, commissioning the plant;
  • testing and commissioning of the visualisation system;
  • Preparation of the as-built design.

The works were completed in January  2017.

Figure  1- II section of  MV 10kV plant after the reconstruction

Figure  2- II section of  MV 35kV plant after the reconstruction

Figure  3- Overview of  TS 35/10 at the visualisation system

Figure  4- New upgraded  transformer 35/10kV, 8MVA in  TS TRAYAL