Comparison between Power System Architectures for the Commercial Buildings


In the previous five topics, I explain the Famous Power system architectures for the commercial buildings. Of course there are other types which differed from these famous ones due to one or more design factor from the following:
  1. The respective supply task. 
  2. The building dimensions. 
  3. The number of stories above / below ground. 
  4. The building use. 
  5. The building equipment and power density. 
  6. Number of feeder points. 
  7. Type of meshing and size of the power outage reserve. 
  8. Size and type of power sources. 

Today, we need to make a comprehensive comparison between these Famous Power systems architectures for the commercial buildings which included in the past five topics listed in below:


The comparison will be as follows:

Module
Building type
Supply
Wiring /main route
Floors
Floor area
Total area
Power required
1
Low-rise building
1 supply section
Cable
≤ 4
2,500 m2
10,000 m2
1,000 – 2,000 kW
2
Low-rise building
2 supply section
Busbar
≤ 4
2,500 m2
20,000 m2
> 2,000 KW
3
High-rise building
1 supply section, central power supply
Cable
≤ 10
1,000 m2
10,000 m2
≤ 1800 kW
High-rise building
1 supply section, central
Busbar
≤ 10
1,000 m2
10,000 m2
≤ 1800 kW
4
High-rise building
1 supply section, transformers at remote location
Cable
10 – 20
1,000 m2
20,000 m2
≥ 1,500 kW
5
High-rise building
1 supply section, distributed
Cable
> 20
1,000 m2
> 20,000 m2
≥ 2,000 kW
High-rise building
1 supply section, distributed
Busbar
> 20
1,000 m2
> 20,000 m2
≥ 2,000 kW

And you can use the following Flow chart as a guide for good selection of appropriate power system architecture for commercial building projects.

Flow chart  for good selection of appropriate power
system architecture for commercial building projects
 

In the next topic, I will explain the electrical requirements for healthcare facilities. So, please keep following. 





2 comments:

  1. Could you please elaborate on the tip regarding the power demand. What is this 630 kVA rule?

    ReplyDelete
    Replies
    1. 630 KVA rule here give approximate value for Ukr (Transformer rated short circuit voltage which is one of the electrical parameters for any transformer and is given in %) based on the value of Smax (max. apparent power of the transformer)

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