Capacitive Voltage Transformer line monitoring method

A capacitive voltage transformer line monitoring method, comprising the steps of: obtaining voltage data of the secondary capacitor voltage transformer substations each of the monitoring area based energy management system; the secondary substation the voltage data corresponding to the respective substation associating the device information; determining a fault state information of the capacitive voltage transformer secondary voltage according to the data; depending on the error state capacitor voltage substation equipment monitoring information within each substation transformer said monitored area Operating status. The capacitor voltage transformer on-line monitoring methods, without adding hardware devices to achieve real-time online monitoring of running status capacitor voltage transformer, monitoring low cost, and does not affect the safe operation of power system stability, suitable for a wide range in the power system application.