Monitoring method and device for flowing speed of transformer oil flow

Abstract

The present invention provides a monitoring method and device for flowing speed of transformer oil flow. The monitoring method includes the steps as follows: acquiring the flow quantity of the transformer oil flow, comparing the acquired flow quantity of the transformer oil flow with the preset flow quantity, and giving warning information if the acquired flow quantity of the transformer oil flow is larger than the preset flow quantity. The monitoring method can realize fault early-warning for a transformer before a fault of the transformer occurs and improves early warning accuracy for the fault of the transformer.

Description

technical field [0001] The invention relates to circuit technology, in particular to a monitoring method and monitoring device for transformer oil flow velocity. Background technique [0002] At present, there is friction between the transformer oil and insulating paper in the transformer. During the operation of the transformer, a certain amount of charge will be generated, causing partial discharge, resulting in methane, acetylene (C 2 h 2 ) and other characteristic gas content increased sharply, resulting in unsafe operation of the transformer. [0003] In the prior art, the content of oil and gas in the transformer is known through on-line monitoring of the oil-gas chromatogram in the transformer, so as to effectively prevent the failure of the transformer. For example, the operation status and trend of the transformer can be judged through the content changes of various characteristic gases. Such as figure 1 As shown, the transformer oil and gas monitoring device co...

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Problems solved by technology

[0005] However, the above oil-gas chromatography, oil temperature and micro-water monitoring are inaccurate in predicting transformer faults, and cannot realize early warning of transformer faults

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