Berlin 380-kV electric line

The 380 kV Transversal Berlin is the for the most part designed as underground cable 380 kV line through the urban area of Berlin. The first section was put into operation in 1978 and consists of a double circuit transmission line from the substation Reuter to the city highway. In this overhead line masts are all designed as tension towers and it arrived first plastic insulators for use, usual porcelain insulators.

From the city motorway the line to the substation middle than 11.5 km-long underground cable runs. A comparable long high-voltage cable, there is in London with the length of 20 km and at the Vienna Energy power grid. One problem is the enormous capacitive load of this line with 2.2uF dar. In order to load these with 50 Hz, a reactive current of 277 A must be applied, which corresponds to a reactive power of 110 MVAr. This reactive power is applied to the ends by compensating coils.

This cable is water-cooled and transferred to a walk-in tunnels. The substation middle is like the substation at the power plant Reuter designed as encapsulated SF6 system, that is, the switchgear is filled with sulfur hexafluoride ( SF6) for insulation and therefore could be made smaller. It's like this is the oldest performed in SF6 technology 380 kV substation in Germany.

After the reunification of the 380 kV Transversal Berlin was continued west to the substation Teufelsbruch and in an easterly direction to the transformer station Friedrichshain. Also, this line was transferred to a walk- in tunnels up to 30 m depth, which is even provided for better inspection with a small train.

From the substation center leads a 6.3-kilometer long cable to the transformer station Friedrichshain, which went into operation in 1998. From the substation Friedrichshain, a 5.2 km long cable leads to the transformer station Marzahn, which went into operation in 2000, from there take the overhead line substation New Hagen.

Another special feature of the Berlin electricity grid is that the first pole of the 380 - kV transmission line that leads from the power station Reuter West to the power plant Reuter, is performed for aesthetic reasons than 66 m high chimney -like concrete pole with steel lattice trusses.

Location

  • Substation Teufelsbruch: 52 ° 34 ' 50 "N, 13 ° 12' 41 " O52.58055555555613.211388888889
  • Substation power plant Reuter: 52 ° 31 ' 53 "N, 13 ° 14' 56 " O52.53138888888913.248888888889
  • Similar chimney concrete poles: 52 ° 32 ' 8 " N, 13 ° 14' 25 " O52.53555555555613.240277777778
  • Finishing period 380 kV line: 52 ° 31 '35 " N, 13 ° 16' 51" O52.52638888888913.280833333333
  • Substation center: 52 ° 30 ' 12 " N, 13 ° 22' 9" O52.50331813.369149
  • Substation Friedrichshain: 52 ° 31 ' 20 " N, 13 ° 27' 25 " O52.52222222222213.456944444444
  • Substation Marzahn: 52 ° 32 '7 "N, 13 ° 31' 26" O52.53527777777813.523888888889
  • New substation Hagen: 52 ° 32 ' 23 " N, 13 ° 42' 36 " O52.53972222222213.71
Dead-end tower
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