Substation in Ludersheim
| Substation in Ludersheim | ||
|---|---|---|
 Power transformer in the Ludersheim substation |
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| Data | ||
| place | Altdorf - Ludersheim | |
| Client | Elektrowerke AG | |
| Construction year | 1940 | |
| Floor space | 85,367 m² | |
| Coordinates | 49 ° 23 '38 " N , 11 ° 19' 32.5" E | |
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| particularities | ||
| First 220 kV substation in Bavaria, part of the Reichsammelschiene | ||
The Ludersheim substation is a substation in the Altdorf district of Ludersheim . As an important component of the power supply in the greater Nuremberg area , it has the voltage levels 220 and 110 kV. In addition, as the first system of this size in Bavaria and part of the Reichssammelschiene, it played an important role in the development of the Bavarian and all-German transmission network.
Today the substation is operated by TenneT TSO (220 kV) as well as N-ERGIE and the E.ON subsidiary Bayernwerk (110 kV).
Location and connection
The facility is located about 20 km southeast of Nuremberg city center and 2 km northwest of Altdorf, on whose municipal area it is located. The approximately 8.5 hectare site takes up a large part of the Ludersheim district. Immediately to the south of the site is the Feucht – Altdorf railway line with the Ludersheim stop of the Nuremberg S-Bahn .
There is a siding to the railway line in the direction of Altdorf for the transport of the transformers.
history
Construction of the facility
The construction of the substation goes back to the year 1938, when the construction of a high-voltage line called the Reichssammelschiene with 220 kV between the lignite mining areas in Central Germany and the hydropower plants in the Austrian Alps was ordered. Ludersheim was intended to supply the greater Nuremberg area with energy from these regions on the one hand, and to establish a connection to the Bayernwerk's 110 kV network, which has been in operation since 1924, on the other . The Berliner Elektrowerke , whose supply area was mainly in Central and Eastern Germany, were in charge of the construction of the line and the transformer stations .
The construction of the Ludersheimer plant by the electrical works began in 1939. At the time of construction, it was the only substation in all of Bavaria designed for this voltage level. The large open-air switchgear including the operational buildings was completed in 1940, so that the Reichsammelschiene could go into operation in January 1941. The delivery of lignite electricity from Central Germany to Bavaria was contractually secured in April 1941.
The 110 kV Nuremberg – Amberg line was interrupted and looped into the substation at both ends, so that the Nuremberg – Ludersheim connections were connected to the Bayernwerk's transmission network, which had covered Bavaria as a central ring line with individual branches since the 1920s and Ludersheim – Amberg resulted. Since the substation Nuremberg (later Nuernberg West or substation Gebersdorf ) the entry point of the I power plant francs of large power station Franken AG (GFA) represented and between Amberg and the power plant Schwandorf also was a connection, the power from these power plants could also be fed into the kingdom busbar become.
A second connection with the Nuremberg city area was built as a single-circuit overhead line to the Nürnberg-Ost substation (today Rehhof substation).
During the Second World War , the plant suffered a few war-related damage, but was still in operation. However, secret armament plants that were built near the plant at the end of the war and were to be supplied by the substation no longer went into operation.
After the war
With the end of the war and the occupation of Germany in four occupation zones, the Soviet occupying power cut the power supply from the area it occupied to Bavaria, which was under American military administration, and interrupted the Remptendorf – Ludersheim connection of the Reich busbar at the zone border. Since the most important energy suppliers for Bayernwerk were no longer available and the section from Ludersheim via St. Peter to Ernsthofen no longer had a connection to the rest of the 220 kV network - previously the connection via Helmstedt and the Lehrte substation was given to PreussenElektra - construction began a connection on purely West German territory is necessary.
The plans for a direct connection with the transmission network operators RWE and PreussenElektra , which were started in 1946, were followed by the construction of the 220 kV line Ludersheim – Aschaffenburg – Borken in 1949 . On the one hand, it connected the coal-fired power station in Aschaffenburg, which was then under construction, to the power grid and, on the other hand, re-established the connection to the PreussenElektra transmission network at the Borken power station . In the same year Bayernwerk signed a contract to exchange electricity with RWE, so that in 1950 the line from Aschaffenburg to the Kelsterbach substation on the north-south line could go into operation.
At the intersection of the Reichsammelschiene with the Bamberg – Kulmbach line from 1927, a second feed-in point into the subordinate network was created in 1958 with the Würgau substation. In addition, it represented the new northern end point of the line connection after the power grid of the GDR was completely separated from that of the Federal Republic.
With the onset of the economic miracle , electricity consumption grew enormously, so that numerous new power plants were connected to the grid or expanded. In the 1950s, a 220 kV line from the power station to Ludersheim went into operation in addition to the connection that had existed since 1924 and 1930. Other 220 kV substations went into operation in Bavaria and the Bayernwerk developed an ever-growing network of high-voltage lines.
In 1964, the substation, which was still the most important junction in the Bavarian electricity network, was upgraded for the first time and in 1967 the 220 kV switchgear was rebuilt so that the capacity of the system could be doubled. At this point in time, up to 24 employees were working in four shifts to manage the company. The line to Rehhof was expanded to two circuits.
In 1988, the management of the plant was transferred from Elektrowerke AG to Bayernwerk, which merged with PreussenElektra to form E.ON in 2000 under the leadership of VIAG .
After reunification until today
The first connection between the West and East German power grids went into operation in 1991 between Raitersaich , Redwitz and Remptendorf as a 380 kV line, but initially with 220 kV, and from Elsenberg mostly follows the course of the old Reich busbar. This relocated a circuit from Ludersheim starting from Würgau to Kriegenbrunn. With the closure of the Franken II power station and the conversion of the Kriegenbrunn substation to 380 kV in 2003, the Elsenberg – Ludersheim section was converted from 220 to 110 kV and connected to the Forchheim and Thuisbrunn substations .
The system, which originally comprised three power transformers and two busbars, was greatly reduced in 2007 as part of savings measures and converted into a so-called savings system. As a result, some 220 kV circuits were also downgraded to 110 kV, especially since the expansion of today's highest voltage level, 380 kV, was accelerated at the same time. Instead of the previous eight 220 kV circuits, there are now only three.
Two years later, the 110 kV system was also reduced from three to two busbars, although the number of circuits did not decrease. The line to Amberg was completely dismantled from 2009 to 2010; this task is now taken over by the second circuit on the line to Schwandorf, which is connected to the Amberg via an underground cable . The line to Nuremberg-Gebersdorf has not existed since 2006 either, it was connected to the Feucht substation.
The 110-kV circuit to Schwandorf was fed into the new Lauterhofen substation, which feeds the electricity from the numerous wind farms on the Franconian Alb that have been newly built in recent years .
Since January 1, 2010, E.ON's extra-high voltage network and thus also the 220 kV section of the Ludersheim substation has been operated by TenneT TSO. On December 31, 2012, the Ludersheim – Rehhof and Ludersheim – Feucht lines were taken over by N-ERGIE Netz GmbH .
business
technical structure
110 kV system
220 kV system
Power transformer
Clearly visible: largely unused area
Since the reduction in the number of technical components, only a small part of the factory premises has been taken up by the outdoor switchgear. The 220 kV system has a busbar and three outgoing circuits for this voltage, the 110 kV system includes two busbars and eight branching circuits.
Two power transformers convert the voltage between the two areas of the system. There is also another transformer as a reserve.
Overhead lines
All circuits leading away from the substation are designed as overhead lines . The following connections exist today:
| Network operator | tension | Power circle -No. |
Destination / station | Construction year | Cardinal direction |
Remarks |
|---|---|---|---|---|---|---|
 TenneT TSO |
220 kV | 237 | Raitersaich | 1949 | North | Originally part of the 220 kV line Ludersheim – Aschaffenburg – Borken , previously two 220 kV circuits, are now connected in parallel |
| 223 | Schwandorf | 1955 | Formerly two 220 kV circuits, one of which is now operated with 110 kV | |||
| 221 | Sittling | 1940 | Originally part of the Reichssammelschiene , previously two 220 kV circuits, are now connected in parallel |
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 N-ERGIE |
110 kV | 142 | Lauterhofen | 1955 | south | Operated with 220 kV until 2009 |
| 125 126 |
Rehhof | 1940 | Two-circuit line, was put into operation as a single-circuit connection when the substation was built and later expanded |
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| 131 | Wet | 1924/1940 | Original line Nuremberg West – Ludersheim, the section from Nuremberg to Feucht was dismantled in 2006 and the remaining connection led to the Feucht substation |
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 Bayernwerk |
143 | Neumarkt | ||||
| 153 | Forchheim | 1940 | North | Originally part of the Reichssammelschiene , operated with 220 kV until 2003 | ||
| 152 | Thuisbrunn |
Web links
Individual evidence
- ↑ www.bahnreligte.net: Feucht - Altdorf railway line (near Nuremberg) (Nuremberg S-Bahn line S2). Retrieved August 1, 2017 .
- ↑ http://www.lokschuppen-dominik.de/ : Ludersheim. Retrieved August 1, 2017 .
- ↑ N-ERGIE Annual Report 2012