Abstract:
A stable and reliable electric power supply system is an inevitable
pre-requisite for the technological and economic growth of any nation.
Due to this, utilities must strive and ensure that the customer’s reliability
requirements are met and the regulators requirements satisfied at the
lowest possible cost. It is known fact around the world that 90% of the of
the customer service interruptions are caused due to failure in distribution
system.
The system modeling and simulation study is carried out on one of
the district’s distribution system which consists of 11kV network in Burri
Area by using Neplan software. The reliability assessment is done on
11kV system to assess the performance of the present system. The
alternative which gives low SAIDI, SAIFI and minimum breakeven costs
are being assessed and considered. The reliability of 11kV system could
be further improved by installation of load break switch, auto recloser and
connecting with line coming from other district (reserve) in strategic
portions at reasonable break even cost.
