Compared to low voltage collector lines, medium voltage collector lines exhibit the following characteristics:
- Due to the high voltage, the control variable has shifted from line loss (voltage drop) to ampacity;
- Since line loss is a secondary factor, minimizing the total cable length can be taken as an optimization goal;
- The overall cable route is planned for the entire site, with multiple medium voltage switch cabinets sharing a common cable route;
- It may adopt a combination of Cable and Overhead Mark by Type;
- Some nodes may have Medium voltage connection boxes added.
The design function of the new version of the medium voltage power collection line is precisely based on the above characteristics. The specific design steps can be divided into the following seven steps:
- Put Start point (medium voltage switch cabinet) and Iron tower (mixed project of cable and overhead);
- Draw a common cable route for the entire site, and the route can form a loop;
- Manually specify which transformers and iron towers belong to which grid connection point;
- The software will automatically search for the connection path with the shortest total length on the common path for each grid point;
- Verify the connection relationship, manually Modify the connection relationship, or Add a Medium voltage connection box;
- Set the calculation conditions for the cable list, calculate and export the cable list;
- Export the medium voltage cable route to CAD and automatically draw the medium voltage connection diagram.
Below, a specific project involving the combination of Double circuit, Cable, and Overhead on the same tower will be demonstrated.
1. Put Start point
2. Place the Iron tower
3. Draw the public Cable route
4. Manually specify which transformers and iron towers belong to which grid connection point
5. Automatically find the connection path with the shortest Total Length
6. Verify connection relationships
7. Export cable list
8. Export the medium voltage cable route to CAD and automatically draw the medium voltage connection diagram
Summary:
The new version of the medium voltage cable collection line design feature aims to optimize the total cable length to be the shortest, which can assist designers in flexible and convenient design, significantly improving work efficiency.
Article Comments（0）