INFLUENCE OF LAYOUT OF CIRCUIT EQUIPMENT ON POWER LOSSES IN SHOP NETWORKS
The article analyzes the causes of the occurrence and the magnitude of the errors from ignoring the main determining factors in calculating the energy losses in the low voltage shop networks. In determining the power losses in the lines of the workshop networks, it is necessary to consider the influence of the following equipment parameters: ambient temperature; heating conductors, due to the passage of the load current through the conductors and the ambient temperature; resistance of contact connections of switching devices and their number. The scheme of the workshop network and daily charts of load of consumers of one of the enterprises of the oil industry complex, as well as types of equipment are presented. Errors in calculating power losses have been determined and an assessment of the effect of layout decisions of the schemes on the calculated value of electric power losses is presented. It is established that the lack of reliable information about the parameters of elements of low voltage guild networks and the failure to take into account the factors that determine these parameters leads to an error of 5 to 70% in calculating the energy losses. Keywords : electrical equipment, layout, losses, electricity, wires, apparatus, temperature.