Load distribution plant
A load distribution plant (also known as a switchgear ) is used in the energy industry. It is a switchgear designed like a substation , but in contrast to a substation, only switching operations are carried out in the switchgear and there is no transformation of the electrical voltage into different levels.
From the outside, a pure load distribution plant looks like a substation, but the transformers and switchgear for various voltages are missing. A substation can also take on the tasks of a load distribution plant and in most cases it is also possible to convert a pure load distribution plant into substations by setting up transformers and building additional switchgear .
Pure load distribution plants are occasionally set up in the vicinity of power plants when it is not possible to install the load distribution in the switchgear of the power plant because, for various reasons, not enough lines can be led to the power plant, or because the plant is from several power plants located close together should be used. Examples of load distribution plants can be found east of Neckarwestheim (one each for traction current and one for 220 kV three-phase current) and in Stuttgart-Mühlhausen . The Neckarwestheim traction current load distribution plant is, along with the Nenndorf traction power switchgear and the Nitzahn traction power switchgear, the only switchgear for traction power that is not located near a railway line or on the site of a power plant that generates traction power.
Load distribution systems can also be used for long-distance transmissions, in order to be able to switch the current to parallel conductors in the event of a fault. An example of this is the HVDC Inga-Shaba .
literature
- Adolf J. Schwab: Electrical energy systems: generation, transport, transmission and distribution of electrical energy . 2nd Edition. Springer, 2009, ISBN 3-540-92226-1 .