| With the constant promotion of the condition based maintenance in the power system, it has been an important subject that how to apply transformer condition information efficiently and scientifically to judge the transformer's state. After study the aging principle of transformer, analyse and choose the condition information, the thesis constitute third-class model of transformer health condition evaluation based on main component analyse method. Introduce electric power equipment health level index formula in this model, and make deduce of formula and fix on parameters, thereby consummate the whole evaluation system. By this way, analyse and calculate HeBei south network 500kV substation 51 transformers'health level index,end of life,probability of failure, and make contrast of evaluation result to equipment'real status, demonstrate the feasibility of evaluation method which bring forward by this thesis. |
