SYSTEM AND METHOD FOR DETERMINING THE CURRENT AND FUTURE STATE OF HEALTH OF A POWER TRANSFORMER

摘要

A system includes a power transformer diagnosis and prognosis device (34) having memory circuitry (76) storing a plurality of models (78). Each of the plurality of models (78) comprises correlations between potential combinations of operational (58) and non-operational (62) power transformer data and potential conditions of one or more subsystems (50,52,54,56) of a power transformer and include a physics-based model (88) and an empirical model (90). The system includes communication circuitry (82) configured to receive a particular combination of operational (58) and non-operational (62) power transformer data related the power transformer (24). The system includes processing circuitry (80) configured to provide the particular combination of operational (58) and non-operational (62) power transformer data as inputs to the plurality of models (78), determine a diagnosis (92) for the power transformer from outputs (74) of the plurality of models (78), determine a prognosis (94) for the power transformer from the outputs of the plurality of models (78), and display the diagnosis (92) and the prognosis (94) for the power transformer on a display device.