Study of On-Line Detecting System for Capacity and Loss of Distribution Transformer

In this paper, A transformer capacity and loss on-line detecting experimental system is presented. The on-line detecting methods used in this system are proposed based on the off-line detection research. Two components of the system, a data acquisition system and analysis software on PC, are designed and a simulated experiment platform is also set up. The on-line test of the capacity and loss of distribution transformer using the on-line detecting system is implemented on this platform. The experiment results show that the errors between the on-line and off-line detections are very small and the proposed on-line detecting methods of the transformer capacity and loss are feasible.