Consideration of Losses in Low Voltage Lines with a Presentation of Calculation Results

The largest part of the total technical losses of power and of electric energy in the distribution of electricity are the technical losses of low voltage lines. Technical losses of electric energy are losses of electric energy that occur in the distribution of electric energy to consumers in electricity distribution equipment, as opposed to commercial losses that include unauthorized use of electricity and losses due to errors in metering equipment. Most of these losses are in low-voltage overhead lines, especially those made of non-insulated conductors. The main source of technical electricity losses is the flow of electric current through conductors. Load asymmetry can significantly increase electric energy losses. Certain measures have been taken to reduce these losses, but not systematically. The calculation of technical power losses for different types of loading of low voltage lines and for load asymmetry is presented and considered. The calculation [1] was done in Microsoft Excel. Input data is entered manually for each calculation. Calculations show that significant savings on losses can be expected with the implementation of measures to balance the load and shift the load (consumer) towards the beginning of the low voltage line, i.e. proper distribution of consumers. These measures need to be implemented in the long term and systematically.