Feeder systems. A schematic diagram. for renewable energies

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1 Competence... With over 60 employees the department Energy distribution and infrastructure has an experienced core of installers, foremen and engineers for the realisation of the most diverse customer requirements. Embedded in a comprehensive project management we plan, deliver and build turnkey electrical plants for you in high, medium and low-voltage ranges. In addition to construction our range includes renovation, modernisation and extension of existing systems, including the complete renewal of primary, secondary, control and protection systems. As a manufacturer-independent partner we fulfil the individual requirements of our customers by the use of modern technologies and state-ofthe-art generations of equipment. Quality and meeting deadlines are paramount. 2

2 with a future Renewable energies are gaining more and more in importance due to the limited availability of fossil fuels and in relation to environmental and climate protection, as well as increasing the security of supply. We are taking this development increa singly into account, too. Our engineers ensure a maximum grid quality through innovative technologies and intelligent systems. We ensure that renewable energies can be fed to meet the demand and with a high level of efficiency into the distribution network of the power supply companies, to reach the end user regardless of the temporal availability of the power source. 3

3 Professionalism... Our engineers plan each system according to individual customer requirements with database-supported CAE systems, such as for example: Ruplan + EVU-module for secondary technical plants and AutoCAD for primary technical plants. This guarantees consistency and plausibility in customer-specific design and end documentation. Our services within our specialist fields include: Project management E-planning and design Construction site management Provision of electrical installation specialists Functional tests and commissioning Plant documentation. 4

4 and quality The introduction of a quality management system (QMS) contributes significantly to quality assurance and customer satisfaction. It is subject to regular certification. The implementation of our QMS is performed on the basis of the DIN EN ISO 9001:2008 standard in the following three stages: Determination of the framework conditions for management of the company in the quality management handbook (QMH) Regulation of the business and operational processes in the process management handbook (PMH) Activity regulations supported by operating instructions and forms. In addition, we can demonstrate the following qualifications: Q1 supplier of Deutsche Bahn AG Registration in the business and suppliers directory for public contracts (ULV) Pre-qualification for the planning, delivery and assembly of 110/15 kv 16.7 Hz switchgear for DB Energie GmbH Pre-qualification for the planning, delivery and assembly of 110 kv switchgear for EnBW Regional AG Pre-qualification for the delivery and assembly of station control and protection technology for 50 Hz switchgear for DB Energie GmbH Qualifying for the construction and maintenance of electrical points heating systems (EWHA) of DB AG Approval for the construction of 30 kv catenary and return conductor cable systems for the Berlin and Hamburg S-Bahn systems. 5

5 Feeder systems for renewable energies Example 1 Construction 110/20 kv Cottbus Halde substation Wind farm capacity: 31,5 MVA Ostwind Gewerbebau GmbH Distribution system operator (DSO): enviam Year: 2008 Turn-key construction of a 110/20 kv substation Connection of transformer to 110 kv switch-yard via cable connection Grid connection via bus-runs below the overhead line by means of single spurline A schematic diagram of a wind energy feed from a wind farm 6

6 Example 2 Construction 110/30 kv Genthin Wind substation Wind farm capacity: 40 MVA UW Genthin GmbH Distribution system operator: E.ON Avacon Year: 2009 turn-key construction of a 110/30 kv substation Connection of transformer to 110 kv switch-yard via cable connection grid connection with a single spurline to the 110 kv overhead line 7

7 Power distribution for public utility companies Example 1 Conversion and construction 110/10 kv Fennpfuhl substation during operation Vattenfall Europe Berlin Year: step-by-step conversion of the 110/10 kv transformer protection Implementation of the 10 kv outgoing protection Renewal of the station control technology including telecontrol systems Example 2 Conversion 110/10 kv Schlachtensee substation during operation Vattenfall Europe Berlin Year: Renewal of the protection and control systems in the transformer branches and the 110 kv switchgears of the partnersubstations including commissioning Renewal of the protection and control systems in the panels of the 10 kv switchgear partial renewal of the auxiliary power system (construction of the 400 V AC incoming distribution as well as adaptation and extension of the DC distribution) 8

8 Example 1 Restructuring and expansion 110/20 kv Eisenhüttenstadt (Pohlitz) substation EnBW Energy Solution GmbH Year: 2009 Construction of the grid feed for the largest paper mill in Europe Extension of the existing 110 kv distribution substation of E.ON Edis with two 110 kv transformer panels Construction of the 110 kv switch-yard Paper mill Construction of the 20 kv cable system and expansion of control system Example 2 Conversion 110/20 kv Merklingen substation during operation EnBW Regional AG Year: Extension of the 110 kv switchgear including commissioning Construction of the 110 kv busbar II Adaptation of the protection and control systems 9

9 Traction power for Deutsche Bahn Example 1 Conversion 110/15 kv 16.7 Hz substation Gerresheim DB Energie GmbH (RB West) Year: Dismantling and turn-key construction of a 110/15 kv substation Setting up auxiliary power supply with 10 kv incoming feed Integration of the 110 kv traction power line Example 2 Turn-key construction Aschaffenburg converter plant DB Energie GmbH (EV Mitte) Year: Construction 110 kv/16.7 Hz switch-yard with six railway line feeds and two 110/15 kv transformers Construction 110 kv/50 Hz switch-yard (according to E.ON standard) Construction 15 kv/16.7 Hz indoor switchgear with six catenary outputs Fitting with protection and control systems as well as with grid quality measuring systems Construction of the 400 V/50 Hz auxiliary system with feed from the 20 KV/50 Hz and 15 kv/16.7 Hz grid; including DC and UPS systems 10

10 Electrical equipment for railway systems Example 1 Tunnel retrofitting high-speed section 4 Hannover - Würzburg Deutsche Bahn AG/ DB Projekt Verkehrsbau Year: On the high-speed section 4 six tunnels with a total length of 19 km were equipped. The following was realised: Tunnel Safety Lighting Transformer stations 10/0.4 kv MV and LV switchgears Tunnel monitoring centres Example 2 Magdeburg Node - 2nd Expansion stage Deutsche Bahn AG/ Eichholz Rail GmbH Year: Construction of 10 kv medium voltage ring with a 10 kv transfer station (Feed from the public grid) and three transformer stations (10/0.4 kv) including telecontrol technology Track field and staff way lighting with steel pylons Lph = 12m Construction and upgrading of the electrical points heating system 11

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12 Energy distribution and infrastructure