Transformer on-line monitoring system and method

According to the on-line monitoring system and method for the transformer, the actual load loss of the transformer is obtained by measuring the electrical data of the low-voltage side and the high-voltage side of the transformer and calculating the electrical data of the high-voltage side and the low-voltage side of the transformer; the calculated actual load loss of the transformer is compared with energy consumption standard data, whether the transformer meets the standard or not is judged, online monitoring of the transformer is achieved, the operation condition of equipment can be known in time, related faults can be predicted in advance, and electric power safety accidents are avoided; by comparing the detected temperature rise data of the transformer with the standard temperature rise data, the actual capacity condition of the transformer is actually and accurately obtained, and all the data are stored and are convenient to check, so that the problem that the capacity of the transformer is not matched i