Circuit loss analysis and application development of three-phase unbalanced load of low voltage distribution network

The three-phase unbalanced load of low voltage area will do harm to the electrical equipment and will increase the technical circuit loss. In this paper, the rms current method is used to deduce relationship between unbalance degree and the rate of increase current loss of three-phase unbalanced lines, as well as the solution of increase current loss of everyday. Use the increase of current loss of the typical day to evaluate the loss of a month, finally, in order to deal mount of data, we develop an application, which is proved rationality and effectiveness.