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1402 زییاپ - 41 هرامش ابرهک - رتویپماک و قرب یسدنهم یصصخت همانلصف

Optimizing connections in medium pressure

networks and its effect on reducing losses and

shutdowns

Mohammad Ali ahmadi Mashhad Electricity Distribution
Company, Khorasan, Iran,
Maa.ahmadi@yahoo.com
Seyed Abolfazl Ashrafzadeh

Abstract: In recent years, very appropriate measures have been taken to reduce

losses and shutdowns in distribution networks. Substitution of self-supporting cables
instead of bare copper wires in order to reduce losses and theft from networks,
removing weak pressure networks or reducing their feeding radius, controlling and
optimizing connections in networks and many other measures that have been taken
have caused casualties in 1989. And 90, in total, the country's distribution networks
decreased by about 7% and reached from about 23% at the end of 2008 to about 16%
at the end of 2010[5], which is a very hopeful trend. Losses in Mashhad electricity

distribution company at the end of 2010 was less than 12%, which is more than 4%
better than the national average [5]. One of the factors that has been effective in this
loss reduction is the optimization of connections in medium pressure networks,
especially the use of bushings instead of locks and fasteners and the complete
elimination of connections in these networks. This action, which started in Mashhad

electricity about ten years ago, in addition to reducing losses, improves the stability
of networks and reduces blackouts, especially blackouts that are caused by burning or
opening the connection from the jumper, loosening of the lock and occurrence of
arcing or The rupture of the conductor occurs at the connection point.

Keywords: Telecom, jumper, Losses, Lock and best, silence

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