Test method for detecting air content of oil of transformer newly put into operation by oscillation method

Abstract

The invention discloses a test method for detecting the air content of oil of a transformer newly put into operation by an oscillation method. The test method comprises the following steps of 1, respectively sampling V1 and V2 by two containers with different volumes, and sealing openings of the containers after sampling is finished; 2, injecting air V0 into the two containers at the same time; 3, putting the two containers into the same oscillator and carrying out full oscillation at room temperature; 4, after step 3 is finished, standing for a period of time to form new gas-liquid balance; 5, according to the steps 1-4, calculating the air content H% in original transformer oil; 6, correcting the air content H% obtained in the step 5; and 7, obtaining the standard air content of test oil in each injector according to the steps 5 and 6, and averaging the two values.

Description

technical field [0001] The invention relates to a test method, in particular to a test method for detecting the gas content of newly put into operation transformer oil by means of an oscillation method. Background technique [0002] The gas content in oil refers to the volume percentage of dissolved gas in the transformer oil. According to the statistics of the oil major of Shandong Electric Power Research Institute, the newly put into operation transformer oil samples in the gas content experiment in oil accounted for more than 85% of the total tested samples. That is to say, most of them are to detect the gas content of the newly put into operation transformer oil, and the main component of the gas content in the newly put into operation transformer oil is air (other components have not yet been produced), therefore, for the newly put into operation of transformer oil A method of quickly detecting air content in multiple test oils has become extremely important. [0003] ...

AI Technical Summary

Problems solved by technology

The detection time of the gas chromatography method is too long, including the sample oscillation link and the gas chromatograph detection link. It takes nearly 3 hours to detect a sample, and only one sample can be detected at a time, which is not conducive to rapid detection, and the instrument is expensive; vacuum Th

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