Number and localisation of MV/LV transformer substations: Difference between revisions

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The main criteria to consider for determination of the number and the location of the MV/LV substations are the following:
Main characteristics to consider to determine the transformation substations:  
* Number of buildings
* Surface of each building
* Number of floors per building
* Repartition and power of the consumers
* Power demand per area, floor, building
* Sensitivity to interruption, need for redundancy


*Surface area of building or site
To determine the number and the location of the MV/LV substations, we may however give the following basic indications:
*Power demand, (to be compared with standardized transformer power),
* Small and medium size building: One single MV/LV substation
*Load distribution
* Large building: One or several MV/LV substations depending on the power and the repartition of the consumers
 
* Building with several floors: One or several MV/LV substations depending on the power and the repartition of the consumers. One MV/LV substation may be dedicated to each floor
The preferred basic configuration comprises one single substation.Certain factors contribute to increasing the number of substations (&gt;1):  
* Large site with several buildings: One MV/LV substation may be dedicated to each building.
 
*A large surface area (&gt; 25000m²),
*The site configuration: several buildings,
*Total power &gt; 2500kVA,
*Sensitivity to interruption: need for redundancy in the case of a fire.<br>
 
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{| style="width: 65%; height: 93px" cellspacing="1" cellpadding="1" border="1"
|-
| &nbsp;
| bgcolor="#0099cc" colspan="3" | '''Configuration'''
|-
| valign="top" bgcolor="#0099cc" | '''Characteristic to consider'''
| bgcolor="#0099cc" | '''1 substation with<br>N transformers'''
| bgcolor="#0099cc" | '''N substations<br>N transformers (identical substations)'''
| bgcolor="#0099cc" | '''N substations<br>M transformers (different powers)'''
|-
| valign="top" | Building configuration
| valign="top" | &lt; 25000m²
| valign="top" | ≥ 25000m²<br>1 building with several floors
| valign="top" | ≥ 25000m²<br>several buildings
|-
| Power demand
| &lt; 2500kVA
| ≥ 2500kVA
| ≥ 2500kVA
|-
| Load distribution
| Localized loads
| Uniform distribution
| Medium density
|}
 
'''''Fig. D11:'''&nbsp;Typical characteristics of the different configurations'' <br>
 
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[[ru:Число и расстановка трансформаторных подстанций высокого/низкого напряжения]]

Latest revision as of 09:48, 22 June 2022

The main criteria to consider for determination of the number and the location of the MV/LV substations are the following:

  • Number of buildings
  • Surface of each building
  • Number of floors per building
  • Repartition and power of the consumers
  • Power demand per area, floor, building
  • Sensitivity to interruption, need for redundancy

To determine the number and the location of the MV/LV substations, we may however give the following basic indications:

  • Small and medium size building: One single MV/LV substation
  • Large building: One or several MV/LV substations depending on the power and the repartition of the consumers
  • Building with several floors: One or several MV/LV substations depending on the power and the repartition of the consumers. One MV/LV substation may be dedicated to each floor
  • Large site with several buildings: One MV/LV substation may be dedicated to each building.
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