Power cable local discharge on-line monitoring method and device

摘要: The present invention discloses a method for on-line monitoring local discharge of power cable and its device. On the earthing wire sensor is cover-connected, resistance divider mounted on voltage transformer station, computer can be used making analysis processing discharge, statistial analysis. Said analyze maximum quantity, average frequency, phase, sewness, steepness other parameters, have rich spectrogram display function, quantity (including quantity) phase spectrogram, frequency others. utilize ORACLE to implement data management.