Keywords
biradial structure
economic efficiency
integral effect
payback period
objective function
power loss електрична мережа
двопроменева структура
показники економічної ефективності
інтеграль- ний ефект
термін окупності
цільова функція
втрати потужності
How to Cite
Abstract
For biradial power supply networks it was derived an objective function that allows to analyze the effect of technological and economic factors on the efficiency of power supply. It was found that utilizing the voltage class of 20 kV in the urban power supply networks would be efficient only when they are constructed with transformers of unit capacity
630 kVA and aluminum cables of 240 mm2 or larger cross-section. Analytic expressions were derived and visualizations were created to analyze minimal specific density of electric load and maximum distance between electric substations for which construction of power supply network of 20 kV is justified as a function of allowed outage time for the network. References 6, figures 3.
References
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