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Analysis and Comparison of Distribution System Costs, Dependant on Underground Cable and Overhead Lines’ Fault Probabilities and Maintenance Cost Difference

By Ilze Priedīte, Aleksandrs Ļvovs and Vilnis Krēsliņš


This paper presents developed methodology for economical assessment of middle voltage overhead and underground cable line network related costs and results of case study made on real distribution network. Detailed calculations of construction, maintenance and fault elimination costs have been done. The results obtained from the calculations give well grounded base for distribution network exploiting engineers when trying to find network`s optimal reliability level by replacing overhead lines by underground cable lines as one of reliability centered maintenance activity

Topics: costs; power distribution faults; power system economics; power distribution lines; power system reliability.
Publisher: Istanbul Technical University
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