The architecture design

The architecture design considered in this document starts at the preliminary design stage (see Fig. D3 step1). It generally covers the levels of MV/LV main distribution, LV power distribution, and exceptionally the terminal distribution level. (see Fig. D2).

In buildings all consumers are connected in low voltage. It means that MV distribution consists in:

• connection to utility,
• distribution to MV/LV substation(s),
• MV/LV substation(s) itself.

Fig. D2 – Example of single-line diagram

The design of an electrical distribution architecture can be described by a 3-stage process, with iterative possibilities. This process is based on taking into account of the installation characteristics and criteria to be satisfied.

Related technical guides

Power Availability and Reliability Guide

The guide outlines innovative solutions from Schneider Electric™ covering the four main areas of Power Availability and Reliability:

• Digital and power systems reference designs
• How selectivity enhances uptime
• Electrical asset management
• Fault localization, root cause analysis, and power recovery

Download the guide (.pdf)