In most cases, the project of the construction of a new substation must be submitted before any further detailed studies to the approval of the utility operating the MV network that will feed the substation. The list of information to provide for this approval may be the result of preliminary discussions with the utility. A substation is a part of an electrical generation, transmission, and distribution system. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions.
Before carrying out any work, it is important to establish the work zone and fence it off to ensure the safety of the access points. Then, notices of work and site tags are installed to keep citizens informed throughout the construction period. In addition, other sources of information including a Web page, an Info-project line, project news bulletins and press releases — are generally available to citizens, who may also contact the project’s community relations advisor.
Throughout the project, site supervisors ensure that all the actions undertaken meet environmental, health and safety and quality standards.
At this step, any trees growing in the work zone are cut down. Then, the ground is levelled and earthwork is carried out. The construction team prepares the work site by carefully setting aside the topsoil, which will be reused
At this step, workers excavate the site, build the formwork, install the reinforcements and pour the concrete. In addition to laying the foundations, we build all the underground concrete structures, such as the recovery basin.
The grounding grid is installed to ensure the safety of people and the equipment. Buried underground, the grid redirects the fault current. Grounding grid: the metal wires that make up the grid will be buried.
As its name suggests, the command building houses the control and protection equipment. Most substations are automated and remotely controlled. Only the largest substations have permanent technical staff on site since most are maintained by mobile teams.
Once the foundations have been laid, we backfill them and level the yard with granular material (sand, gravel, rock, etc.) that is adapted to the site.
Once the concrete is set, steel structures are assembled to support the electrical equipment. Other structures will support the control building.
Once the concrete is set, steel structures are assembled to support the electrical equipment. Other structures will support the control building.
1)Voltage transformers
2)Current transformers
3)Power transformers
4)Surge arresters
5)Breakers
6)Switches
7)BED buses