Monitoring and updating of specific electric loads of residential and public buildings

Abstract

Design organizations use standard specific load values to calculate the power consumed by residential and public buildings. The practice of operating power supply systems has shown that in most cases the actual load is 1.5 – 2.5 times less than the calculated load. The constructed cable networks and transformer substations of 0.4 / 10 kV are actually underloaded. The Association “Roselektromontazh” conducted research of TS loading of 0.4/10 kV in several cities of the Russian Federation, the results of which determined that about 80% of TS work with a maximum load of less than 30% during the year. The capacity of power transformers is selected according to account 70% of the total maximum load in the rated mode. Low load of power transformers leads to an increase in losses in them by comparing those working with a load of 70%; an inefficient use of investments. To solve this situation, it is proposed to monitor electric loads with subsequent updating of standard documents in terms of calculated specific electric loads, which will bring the calculated values closer to the actual ones to increase economic efficiency in the construction and operation of the power grid complex.