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Tailor-made solutions in response to increased demands on supply quality

Tailor-made solutions in response to increased demands on supply quality. … paper 2.66 by DREWAG – Stadtwerke Dresden GmbH (Germany). Dresden - capital of Saxony. DRESDEN is a symbiosis of high technology and baroque. Sachsen.  also known as "Silicon Saxony". Fundamental statements.

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Tailor-made solutions in response to increased demands on supply quality

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  1. Tailor-made solutions in response to increased demands on supply quality … paper 2.66 by DREWAG – Stadtwerke Dresden GmbH (Germany)

  2. Dresden -capital of Saxony DRESDEN is a symbiosis of high technology and baroque Sachsen  also known as "Silicon Saxony"

  3. Fundamental statements • The basic standard of supply quality is a balance between the customers’ quality demands and the acceptance of the resulting costs in general. • Changes in the basic standard are only possible in the long term and at great expense. • Increased requirements for supply quality call for customer-specific solutions.

  4. G 110 kV grid of Dresden Location of mask house 380 kV Caption: 110 kV overhead line 110 kV underground line 110 kV undergrond line (planned) 110-kV/MV-substation 110-kV/MV-substation (planned) power plant with 110-kV/MV-substation Elbe 380-kV/110-kV/MV-substation pumped-storage power station with 110 kV network node 380 kV

  5. Connection of switchgear to 20 kV grid Wilschdorf substation Klotzsche substation n.o. C n.o. C D Automatic transfer gear n.o. GQ MV switchgear mask house A B C n.o. n.o. automaticbypass UPS 1 UPS 2 UPS 3 UPS 4 hand bypass D E HQ Connection to customer

  6. Commissioning tests – Power failure Measuring-point GQ Current L1 (GQ busbar)  GQ Current L1 (HQ busbar) UPS 2 UPS 3 UPS 4 HQ Phase-to-earth voltage L1 (HQ busbar) Measuring-point HQ

  7. Principal conclusions • Cooperation as partners is necessary already in the planning stage  economic efficiency is the scale. • Simply configured customer plants for: • classification of consumption points • economical system management. • Desensitisation of plants and equipment sensitively to faults.

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