Patent ID: 6345236
Filing Date: 2002-02-05
Classification: G01R

Abstract:
A method for detecting installation and/or calibration errors in a plurality of signal output units of one or more partial-discharge measurement systems, wherein the signal output units are arranged at various points in an electrical insulation system, the method comprising the steps of:a) calibrating a selected one of the plurality of signal output units by injecting a first calibration pulse between a high-voltage side of the insulation system and ground; b) storing calibration data obtained during the step of calibrating; c) Recording a first set of partial discharge signals and an amplitude of the first calibration pulse via the selected signal output unit and storing the first set of partial discharge signals and the amplitude of the first calibration pulse; d) adopting the stored calibration data for the selected signal output unit, for the calibration of the other signal output units; e) Recording a second set of partial discharge signals and an amplitude of a second calibration pulse via the other ones of the plurality of signal output units and storing the second set of partial discharge data signals and the amplitude of the second calibration pulse; and f) comparing the stored partial discharge signals for all the signal output units with one another.