Calibrating method of color spectrum in oil on-line detecting device

Abstract

The invention discloses a calibrating method of a color spectrum in oil on-line detecting device, which includes the following steps: step 1, calibrating through the oil sample off-line value at the very day when a transformer is failure-free: 1), sampling an oil sample from the calibrated transformer at the very day, testing concentration of all components and obtaining the average value, calculating and obtaining the correction factor ki,1, and 2), adopting ki for factor correction of detected components of an oil on-line device of the transformer, and completing the calibration; and step 2, calibrating through the color spectrum off-line assay values of several continuous days when a transformer has failure: 1), taking oil samples from the transformer continuously within three to five days, testing concentration of all components and obtaining the average value, calculating and obtaining the correction factor ki1, and 2), adopting ki for factor correction of the detected components of the oil on-line device of the transformer, and completing the calibration. The method better solves the problem that the color spectrum in oil on-line detecting device has big deviation of the on-line detection result for fault early warning of the transformer and off-line data, and is of little difference in analyzing and judging the running condition of the equipment.

Description

technical field [0001] The invention relates to an on-line detection device for transformer failure early warning, in particular to an on-site calibration method for an oil-in-oil chromatography on-line detection device. Background technique [0002] The oil-in-oil chromatography on-line detection device is an on-line detection device for early warning of transformer faults. Practical applications have found that the components of this detection device can experience component fatigue after repeated operations for a long time, and the deviation between the detection results and the offline data is large, which brings panic to the analysis and judgment of the operation of the equipment. The adjustment of the device parameters by the manufacturer is only based on experience. In the device operation and maintenance manual provided by the manufacturer, there are no relevant technical regulations to ensure that the online data is true and ideal, and no relevant technical methods ...

AI Technical Summary

Problems solved by technology

At present, there is no unified technical specification for on-line monitoring of dissolved gases in transformer oil in my country. Therefore, the current chromatographic on-line detection device is still only used as a reference and cannot replace off-line analysis.