Accurate capacitance prediction of capacitor bank within a time period and its variation trend analysis are of great importance for safe operation and life extension of shunt capacitor bank. In this paper

a kind of capacitance prediction model of shunt capacitor bank at 10 k V side based on the Microsoft time sequence algorithm and with adoption of power quality monitoring data is proposed and

on this basis

the capacitance trend analysis and prediction as well as pre-warning system is designed. The user

throughout this system

can be able to not only monitor the operation condition of capacitor bank

provide reliable evidence

but also predict the capacitance variation trend of the capacitor bank as well as achieve its life pre-warning. Both the feasibility and accuracy of the model is verified by the actual operation result.