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Condition diagnosis system for transformer fault types

A transformer fault and state diagnosis technology, applied in the direction of instruments, scientific instruments, and measuring electrical variables, can solve problems such as complex faults and operating environments, fuzzy key information of faults, and lack of fault type diagnosis, so as to improve accuracy and timely The comprehensive optimization of performance, efficiency and cost, and the effect of overcoming ambiguity and applicability

Active Publication Date: 2017-10-03
ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
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Problems solved by technology

However, due to problems such as the actual faults of the equipment and the complex operating environment, incomplete knowledge of fault type discrimination, and fuzzy key fault information, the existing state monitoring devices for dissolved gases in insulating oil of transformers mainly realize the detection of characteristic gases in insulating oil and are not yet available. Ability to diagnose fault types

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  • Condition diagnosis system for transformer fault types
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Embodiment Construction

[0028] In order to better understand the present invention, the present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0029] A state diagnosis system for a transformer fault type includes an oil sample collection module, an oil-gas separation module, a gas separation module, a gas detection module, a data processing module, and a data transmission module; the oil sample collection module is used to collect insulating oil in the transformer body and The collected insulating oil in the transformer body is input to the oil-gas separation module; the oil-gas separation module is used to separate the insulating oil in the transformer body collected by the oil sample collection module and the mixed gas dissolved in the insulating oil, and the separated mixed gas is input to the Gas separation module; the gas separation module is used to separate the various gas components of the mixed gas separated from the oil-gas separ...

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Abstract

The invention specifically discloses a condition diagnosis system for transformer fault types, belonging to the technical field of condition monitoring and fault diagnosis of power equipment. The condition diagnosis system comprises an oil sample collection module, an oil-gas separation module, a gas separation module, a gas detection module, a data processing module and a data transmission module. The condition diagnosis system provided by the invention successfully realizes rapid, accurate and real-time detection of the composition and concentrations of dissolved gases in the insulating oil of a transformer, avoids the shortcoming of lack of monitoring means with long-term stability and credible precision in the operation and maintenance of the transformer, and provides reliable data for online evaluation and analysis of the operating state and remaining life of the transformer; and a sample retrieval algorithm based on Euclidean distance is innovatively introduced for identification of fault types, so the condition diagnosis system overcomes problems in fuzziness and applicability of data about dissolved gases in the insulating oil, is improved in accuracy and timeliness of fault recognition, and achieves the goal of comprehensive optimization of risks, efficiency and cost in power safety production.

Description

technical field [0001] The invention relates to the technical field of state monitoring and fault diagnosis of electric equipment, in particular to a state diagnosis system of a transformer fault type. Background technique [0002] Most transformers are oil-filled transformers, using insulating oil as the medium for insulation and heat dissipation. In actual operation, transformer insulating oil and solid insulating materials will gradually age, decompose, and produce characteristic gases dissolved in the oil under the action of electricity and heat. The amount in the insulating oil will increase, and the composition and content of the fault gas are closely related to the type and severity of the equipment fault. Therefore, monitoring the dissolved gas of the transformer insulating oil is one of the important means to monitor the operation of the transformer. It can help to detect early insulation defects in the transformer, and through timely fault diagnosis and status eva...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/64G01R31/12
CPCG01N30/02G01N30/64G01R31/1281
Inventor 王乐蒲金雨张炜邬蓉蓉余长厅张玉波蒙国斌
Owner ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
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