Office Building Solution

BU I LDI NG SOLUT IONS

11

— Scheme

— Fundamental diagrams of electricity distribution

The possible configurations that an electrical distribution system can assume can generally be traced back to three fundamental schemes in addition to the mesh scheme typical of distribution companies:

Features

Scheme simple radial

double radial

ring-shaped

Reliability

minimum minimum minimum

maximum average maximum medium (1) maximum medium (2)

Service continuity Voltage constancy

• the simple radial scheme; • the double radial scheme; • the ring scheme.

Energy Losses

maximum minimum

medium (2)

Initial Investment Cost

minimum

maximum medium maximum average maximum average

Cost of operation and maintenance minimum

The table shows, in summary form, the main characteristics and a comparative, qualitative assessment of these three schemes. Qualitative, comparative summary of the main characteristics of the three basic electricity distribution schemes

Flexibility

minimum

Simplicity (controllability) average (1) Provided that short interruptions in service are acceptable in the event of faults or work on the system. (2) It is a function of where the loop is kept open. maximum average

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