For monitoring the operation condition of shunt capacitor at substation and comprehensively evaluating the configuration and operation condition of shunt capacitor device,the equipment asset information of the production management of the substation is used and the reactive power operation data of of network voltage of automation system of is dispatched in this paper. The configuration and operation evaluation index system of capacitor is set up firstly in accordance with related index of voltage which is involved by the shunt capacitor.Then,the physical meaning and assessment method of each index are clarified. After that,a normalization processing method of reactive power compensation data based on deterioration degree is proposed with consideration of the deterioration characteristics of each index of the evaluation system. The comprehensive evaluation method combining analytic hierarchy process and entropy weight method is used to quantitatively evaluate the configuration and operation condition of the shunt capacitor. Finally,the evaluation method is applied to the comprehensive evaluation of shunt capacitor at the substation of a local company and the evaluation result complies with the actual operation condition of the device. Moreover,the method can achieve real-time evaluation of the shunt capacitor and provide data foundation for the improvement of reactive compensation effect of substation.
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