Maryam Hajinia - Dept. of Electrical and Computer Engineering, University of Tabriz Tabriz, Iran
Seyed Mehdi Mahaei - Azarbaijan Regional Electric Company Tabriz, Iran
Jafar Jafarzadeh - Tabriz Electric Power Distribution Company Tabriz, Iran

In this paper is proposed a new multi-objective function include energy losses cost and reliability indices for placement of reclosers and fuses in distribution networks. All of the indices is converted to economical factors for suitable optimization and physical concept the objective function. Increasing the annual energy cost and cost of reliability indices are considered because study term is more than a year. Also in this paper a new optimization algorithm is proposed that is named society development algorithm (SDA). Case studies on a Tabriz 115 busses network shows the SDA is optimize better than genetic algorithm (GA). Simultaneous placement oh reclosers and fuses have optimal results than non- Simultaneous placement.

recloser; fuse; reliability, Society Development Algorithm