Switch cabinet operation monitoring and evaluating system

An evaluation system and operation monitoring technology, applied in the field of switchgear, can solve the problems of no integrated excellent solution, large errors, and no unified standard for factor sets, etc., and achieve high efficiency, broad application prospects, and reasonable system structure Effect

Pending Publication Date: 2017-04-05
ZHAOTONG POWER SUPPLYING BUREAU OF YUNNAN POWER GRID
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Problems solved by technology

In addition, evaluation methods based on multiple factors include: fuzzy comprehensive diagnosis method, which is used for comprehensive evaluation of online monitoring of electric life, but there is no unified standard for how to select a suitable factor set; evaluation...

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  • Switch cabinet operation monitoring and evaluating system
  • Switch cabinet operation monitoring and evaluating system
  • Switch cabinet operation monitoring and evaluating system

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Embodiment Construction

[0034] Specific embodiments of the present invention will be described in detail below in conjunction with specific drawings. It should be noted that the technical features or combinations of technical features described in the following embodiments should not be regarded as isolated, and they can be combined with each other to achieve better technical effects. In the drawings of the following embodiments, the same reference numerals appearing in each drawing represent the same features or components, which can be applied in different embodiments.

[0035] An embodiment of the present invention is a switchgear operation monitoring and evaluation system, including an online monitoring module 2, an operating state evaluation module 3, a life prediction module 4, and a main server 9;

[0036] The online monitoring module 2 is used for online monitoring of the partial discharge of the switchgear 1, and can perform current state query and historical state query;

[0037] The opera...

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Abstract

The invention relates to the technical field of switch cabinets and provides a switch cabinet operation monitoring and evaluating system, which comprises an online monitoring module, an operation state evaluating module and a service life predicting module, wherein the online monitoring module is used for online monitoring partial discharge of the switch cabinet and carrying out current and historical query; the operation state evaluating module is used for evaluating the operation state according to the total historical discharge amount of the switch cabinet; the service life predicting module is used for evaluating the service life of the switch cabinet; and the online monitoring module, the operation state evaluating module and the service life predicting module are all connected with a main server. The switch cabinet operation monitoring and evaluating system has the beneficial effects that an ultrahigh frequency antenna is used for acquiring partial discharge signals of the switch cabinet, through filter amplification, recognition conversion and storage, problems of discharge signal attenuation and interference are solved, and accurate online monitoring on the partial discharge of the switch cabinet can be realized; according to the discharge data and the operation state data of the switch cabinet, the switch cabinet evaluation service life under a Weibull distribution model under a statistical characteristics-based fault tree can be obtained; and the system has a reasonable structure, the efficiency is high, and the application prospect is wide.

Description

technical field [0001] The invention relates to the technical field of switch cabinets, in particular to a switch cabinet operation monitoring and evaluation system. Background technique [0002] The internal space of the switchgear is small, there are many parts, the structure is complex, and the insulation distance is small, so it is more prone to insulation defects than other electrical equipment, such as air bubble gaps, impurities, spikes, etc.; under the action of a strong electric field, the electric field distribution inside the insulation of the equipment is uneven Uniform, the electric field strength at the defect site increases, which easily leads to the discharge that does not penetrate the entire insulation at this site, that is, partial discharge. Partial discharge generally does not cause penetrating breakdown of insulation, but it can cause local damage to the insulation medium. If it exists for a long time, it will cause damage to the electrical strength of...

Claims

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Application Information

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IPC IPC(8): G01R31/00G01R31/12
CPCG01R31/003G01R31/12
Inventor 徐云水杨和刚唐玉龙沈龙陈宏李锐张碧辉孙成龙
Owner ZHAOTONG POWER SUPPLYING BUREAU OF YUNNAN POWER GRID
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