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Method for comprehensively estimating insulation state of sulfur hexafluoride electrical equipment

A technology for comprehensive evaluation of electrical equipment, applied in electrical digital data processing, instruments, calculations, etc., can solve problems such as inability to evaluate the insulation state of electrical equipment, and achieve the effect of flexible use and simple operation

Inactive Publication Date: 2011-04-27
CHONGQING UNIV
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0003] Existing SF ·6· The monitoring of the insulation status of electrical equipment, such as the patent "Infrared detection device and method for trace components of sulfur hexafluoride gas discharge" with application number 200910104566.8, discloses only the SF ·6· The partial discharge decomposition components of the gas are detected, which cannot be used for SF ·6· Comprehensive assessment of the insulation state of electrical equipment
Another example is the patent number ZL200820057502.8 "SF ·6· Gas comprehensive tester" patent, the disclosure is only for SF ·6· A comprehensive test of the concentration of micro water and decomposition products of the gas cannot be used for SF ·6· Comprehensive assessment of the insulation state of electrical equipment

Method used

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  • Method for comprehensively estimating insulation state of sulfur hexafluoride electrical equipment
  • Method for comprehensively estimating insulation state of sulfur hexafluoride electrical equipment
  • Method for comprehensively estimating insulation state of sulfur hexafluoride electrical equipment

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Embodiment

[0062] Such as Figure 1~3 As shown, a method for comprehensive evaluation of the insulation state of sulfur hexafluoride electrical equipment is combined with the application in a power enterprise in Henan. In September 2009, when the power company adopted this comprehensive evaluation system, there were 10 substations, including 3 220kV substations, 6 110kV substations, and 1 35kV substation The management authority of the substation is delegated to the next-level unit), and there are two 220kV substations under construction that are not put into operation (one of which has been put into operation in May 2010), and the above 12 substations contain SF 6 The specific application in electrical equipment) to illustrate the specific steps are as follows:

[0063] (1) Initialization

[0064] After the laptop is turned on, first enter the user name and password of the operator. Only when the user name and password match the user name and password preset by the system can the com...

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Abstract

The invention relates to a method for comprehensively estimating the insulation state of sulfur hexafluoride electrical equipment and belongs to the technical field of monitoring and estimation on the insulation state of the sulfur hexafluoride electrical equipment. In the method, a computer and a comprehensively estimating device of the sulfur hexafluoride electrical equipment with the application number of 201020240900.0 are utilized, a fuzzy theory and a neural network method are applied by utilizing a program, and then the method carries out comprehensive estimation to the insulation state of the SF6 electrical equipment by adopting the working mode of an Windows interface. The method can be used for carrying out monitoring, intelligent analysis and comprehensive estimation to the running indexes comprising brackish water, mainly discharged decomposition products (HF, CO, SO2 and H2S) and the concentrations thereof and the like in SF6 gas of the SF6 electrical equipment, and has the characteristics of simple operation, high efficiency, flexible and convenient use, convenient on-site rapid diction and estimation and the like. The method can be widely applied to rapidly detecting and estimating the insulation state of the SF6 electrical equipment in power stations and transformer substations.

Description

a technical field [0001] The present invention belongs to sulfur hexafluoride (SF ·6· ) Technical field of electrical equipment insulation status monitoring and evaluation, specifically related to SF ·6· Comprehensive evaluation method for gas insulation state of electrical equipment insulation. Two background technology [0002] in SF ·6· Electrical equipment with gas as the insulating medium (hereinafter referred to as SF ·6· Electrical equipment) that is combined electrical appliances (GIS), gas insulated transformers (GIT), SF ·6· Circuit breakers have gradually become one of the preferred equipment and important symbols of modern power plants and substations. These devices are in operation, SF ·6· The content of micro water in the gas, SF ·6· The concentration of gas decomposition components (the energy generated by partial discharge due to insulation defects causes SF ·6· The gas decomposes and reacts with trace oxygen and moisture in the equipment to generate H...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
Inventor 张晓星唐炬郑新才张申曾福平刘勋张凯曹海军李明王丽君
Owner CHONGQING UNIV
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