Centrifugal rapid degassing assembly for main transformer fault detection

Abstract

The invention relates to the technical field of power system fault detection, and discloses a centrifugal rapid degassing assembly for main transformer fault detection, the centrifugal rapid degassing assembly comprises an oil chamber and an intelligent controller, the inner wall of the bottom of the oil chamber is provided with a stirring degassing cylinder of which the top end and the bottom end are arranged in an open structure, and the bottom end of the stirring degassing cylinder is fixedly connected to the inner wall of the bottom of the oil chamber; degassing holes penetrating through the peripheral side wall of the stirring degassing cylinder are formed in the peripheral side wall of the stirring degassing cylinder; a stirring shaft arranged in the stirring degassing cylinder and heaters symmetrically arranged on the two sides of the stirring degassing cylinder are further arranged on the inner wall of the bottom of the oil chamber, stirring paddles are arranged on the shaft wall of the stirring shaft, and the bottom end of the stirring shaft is connected with a main shaft of a driving motor arranged outside the oil chamber; the intelligent controller is arranged outside the oil chamber, and the intelligent controller is in electric communication connection with the heater and the driving motor; the degassing assembly has the characteristic of improving the degassing treatment speed of the dissolved gas in the oil.

Description

technical field [0001] The invention relates to the technical field of power system fault detection, in particular to a centrifugal fast degassing assembly for main transformer fault detection. Background technique [0002] When the power main transformer suddenly fails and sends a light-watt action signal and the main transformer trips unexpectedly, in order to quickly find out the nature of the main transformer failure, quickly judge and deal with the main transformer failure, the gas relay of the main transformer gas relay and the main transformer body oil are usually detected. The gas composition and content in oil can be used to judge the nature of the internal fault of the main transformer; and the detection of gas accumulation and flammable gas content dissolved in oil is an important means to judge whether there is a serious discharge fault in the main transformer. [0003] At present, the conventional methods for on-site judgment of main transformer discharge faults...

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Problems solved by technology

[0004] The gas ignition method is simple and easy to implement, but it has the problem of extremely low judgment accuracy. It can only be used for the preliminary qualitative of the gas but cannot be used for quantification, and it can only detect the gas but not the oil sample; Both can be detected and judged with extremely high accuracy, but it needs to perform vibration and degassing treatment on the oil sample taken from the main transformer of sudden failure before obtaining the required detection gas sample, while the aforementioned oil sample in the prior art Most of the methods for vibration degassing treatment of samples are just to inject high-purity nitrogen gas into the oil sample syringe, then put it into a constant temperature vibration box, and perform vibration degassing, standing still, and removing gas by left and right vibrations, which may take a long time. The problem

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