Abstract: In power system, line loss is a common energy loss of electric energy loss. Therefore, it is particularly important to analyze the causes of line loss in distribution network and carry out theoretical calculation to reduce energy consumption. This paper introduces the basic causes of line loss and simply analyzes the common methods of calculating line loss. In many methods, in view of the equivalent resistance method is suitable for the operation of the distribution network electric energy loss calculation characteristics, the principle of equivalent resistance method, application conditions are analyzed, the equivalent resistance method is applied in the 10 kV distribution line loss calculation. Based on the comparison between the result of calculation example and practice, the application of this method in practice is analyzed. The results show that the error of equivalent resistance method is small, and the results have a certain reference significance to establish the evaluation index of line loss.

Key words: line loss')">

line loss, distribution network, reduce energy consumption, equivalent resistance method