Research on the Improved Method to Calculate the Line Loss of Low Voltage Distribution Line

This paper improves the calculation method of line loss, and uses the existing equipment calculation data in the low voltage distribution line to replace the branch current data required in the line loss calculation. Finally, the actual calculation case shows that when the unbalance degree is less than 4%, the calculation accuracy of the traditional equivalent resistance method is close to the improved line loss calculation method, but the improved method has a smaller error, with an accuracy within 1%. Compared with the traditional equivalent resistance method, the improved calculation of line loss method reduces the difficulty of data sampling and improves the accuracy of low voltage distribution line loss calculation.