Number and localisation of MV/LV transformer substations: Difference between revisions
From Electrical Installation Guide
(Created page with '{{Menu_MV_&_LV_architecture_selection_guide}} <br> Main characteristics to consider to determine the transformation substations: *Surface area of building or site *Power deman…') |
m (Review Format) |
||
| Line 18: | Line 18: | ||
<br> | <br> | ||
{| style="width: | {| style="width: 65%; height: 93px" cellspacing="1" cellpadding="1" border="1" | ||
|- | |- | ||
| | | | ||
Revision as of 09:34, 17 August 2012
Main characteristics to consider to determine the transformation substations:
- Surface area of building or site
- Power demand, (to be compared with standardized transformer power),
- Load distribution
The preferred basic configuration comprises one single substation.Certain factors contribute to increasing the number of substations (>1):
- A large surface area (> 25000m²),
- The site configuration: several buildings,
- Total power > 2500kVA,
- Sensitivity to interruption: need for redundancy in the case of a fire.
| Configuration | |||
| Characteristic to consider | 1 substation with N transformers |
N substations N transformers (identical substations) |
N substations M transformers (different powers) |
| Building configuration | < 25000m² | ≥ 25000m² 1 building with several floors |
≥ 25000m² several buildings |
| Power demand | < 2500kVA | ≥ 2500kVA | ≥ 2500kVA |
| Load distribution | Localized loads | Uniform distribution | Medium density |
Fig. D11: Typical characteristics of the different configurations
