Introduction  The line loss of 10 kV distribution network is an important indicator to measure the economic benefits of power grid enterprises. At present, due to some areas, data collection cannot be synchronized, and the line topology relationship cannot be updated in real time. As a result, power grid companies have greater management line losses when calculating line losses. Using the distribution network synchronous phasor measurement terminal with the distribution network line loss real-time analysis platform for line loss management is an effective way to solve the problem of abnormal line loss.

  Method  Firstly, it analyzed the abnormal main causes of the line loss of the medium voltage distribution network, and put forward the idea of improving the accuracy of the line loss. Then, the synchronous phasor measurement technology was introduced, and the synchronous phasor measurement architecture was proposed. Finally, the functional requirements of the line loss real-time synchronization analysis platform were proposed.

  Result  Based on the power grid of a demonstration project in a certain area of Guangzhou as the research basis, according to the actual situation and needs of the power grid, the basis A design scheme for real-time synchronous analysis of line loss in 10 kV distribution network based on synchronous phasor measurement.

  Conclusion  The solution in this paper provides effective direction and engineering experience for line loss management and governance of distribution network.