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Transformer fault diagnosis method

A transformer fault diagnosis method technology, applied to instruments, measuring electrical variables, measuring devices, etc., can solve problems such as misjudgment of faults, and achieve the effect of improving accuracy

Pending Publication Date: 2022-08-09
GUANGDONG POWER GRID CO LTD +1
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Problems solved by technology

[0005] The invention provides a transformer fault diagnosis method, which is used to solve the technical problem of misjudgment of faults in the prior art when performing transformer fault diagnosis

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Embodiment Construction

[0036] The embodiment of the present invention provides a transformer fault diagnosis method, which solves the technical problem of fault misjudgment when the transformer fault diagnosis is performed in the prior art.

[0037] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the following The described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] see figure 1 , this embodiment provides a method for a transformer fault diagnosis method, the method includes:...

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Abstract

The invention discloses a transformer fault diagnosis method, which relates to the technical field of transformer substation equipment fault diagnosis, performs fault diagnosis on a transformer by acquiring characteristic gas data in transformer insulating oil, and performs fault diagnosis on the transformer according to the characteristic gas data and a preset transformer fault diagnosis program. Obtaining a first diagnosis result; performing fault diagnosis on the transformer according to the characteristic gas data and a preset transformer fault diagnosis model to obtain a second diagnosis result; and the final fault diagnosis result of the transformer is determined by judging the consistency of the first diagnosis result and the second diagnosis result, so that the technical problem of fault misjudgment caused by adopting a single diagnosis method when the fault diagnosis of the transformer is carried out in the prior art is solved.

Description

technical field [0001] The invention relates to the technical field of fault diagnosis of substation equipment, in particular to the fault diagnosis of transformers in substations. Background technique [0002] Transformer is an important equipment in the substation. The operation state of the transformer directly affects the safe and stable operation of the substation. The transformer fault is usually the result of the comprehensive action and long-term accumulation of the transformer itself and the operating environment. And the stable operation of the substation is very necessary. [0003] At present, the transformer fault diagnosis mainly includes the improved three-ratio method. The improved three-ratio method not only eliminates the influence of the volume effect of the transformer insulating oil, but also eliminates the interference of the different degassing rates on the analysis results. [0004] For the improved three-ratio method, although some interference can ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
CPCG01R31/00Y04S10/52
Inventor 邓胜初武利会罗春风郑琪雷剧璋王彦东刘秀甫温玉琦曾浩桂
Owner GUANGDONG POWER GRID CO LTD
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