4. Case studies: application to the power distribution systems
To illustrate our view in this work, we will give a general
description of the electrical distribution station located in the region
of RELIZANE north west of ALGERIA. The suggested alternative
for the power distribution systems can be schematized as follows
(Fig. 3):
Where:
1. Electrical line (EL).
2. Circuit breaker (CB).
3. Bus bar (BB).
4. Power transformer (PTR); fuse (F).
5. Sectionalizer (SW). EFS: Electric Feeder System
4.1. Classification of failures and estimated replacement cost for major
components
The failures of the various elements are at the base of the failures
of the EFS, however the reliability of the complex systems
as the EFS depend primarily on their structure of the type of connection
of the elements and of the dependability of operation of
the elements. It is known that from elements of a no high level
of reliability, the design of the reliable system can be obtained
on the basis of optimal redundant structure.