A Critical Review of Distribution Substation System Reliability Evaluations
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The significance of a reliable distribution system is hinged on the fact that even if the generation and transmission of
a power system are highly reliable, an unreliable distribution system will mean that there will be poor supply of
energy to the consumers. Therefore, there must be ways of measuring the reliability of power distribution systems
according to given standards in order to help inform the system engineers on the causes of interruptions. This will in
turn help in proffering methods of accomplishing a more reliable distribution system. There are established basic
methods of assessing the reliability of this system and different researchers engage the one best suited for the
analysis they intend to carry out. Moreover, going through previous published works on distribution system
reliability evaluation, insight is given into why a distribution behaves below standard and how it could be possibly
improved. This paper presents an overview of the basic methods used in reliability assessment with the frequently
used reliability indices and a critical review of published works by authors in carrying out the reliability evaluation
of different power distribution systems based on these various methods.
Keywords
TK Electrical engineering. Electronics Nuclear engineering