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Vacuum circuit breaker vacuum degree on-line monitoring system

A technology of vacuum circuit breaker and monitoring system, applied in the field of power system, can solve problems such as staying in the theoretical research stage, and achieve the effects of high cost performance, high reliability and convenient maintenance

Inactive Publication Date: 2015-05-06
CHINA THREE GORGES UNIV
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  • Application Information

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Problems solved by technology

On-line monitoring methods mainly include coupling capacitance method, rotating electric field probe detection method, photoelectric conversion method, proportional difference probe detection method, acoustic detection method, pressure sensor method, micro cold cathode magnetron method, electromagnetic wave detection method, etc., the current Most of the research on online vacuum monitoring methods stays in the theoretical research stage, and there is no online vacuum monitoring method that has been widely used. An easy-to-use online monitoring device for vacuum degree of vacuum circuit breaker is very meaningful

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Embodiment Construction

[0014] The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0015] refer to Figure 1-Figure 2 , a vacuum degree online monitoring system for a vacuum circuit breaker, comprising a host computer and a lower computer, and the lower computer part is an online vacuum degree monitoring device for a vacuum circuit breaker, and the vacuum degree online monitoring device for a vacuum circuit breaker consists of three sensors and a vacuum Degree online monitor composition. The online vacuum degree monitor includes precision resistors, NPO grade capacitors, operational amplifiers, microwave directional emission chips, AD converters, and DSP chips. The online vacuum monitor is mainly to amplify, filter and convert the signal collected by the sensor. The extraction of effective data information cannot be completed by hardware, but based on high-speed neural network technology...

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Abstract

The invention discloses a vacuum circuit breaker vacuum degree on-line monitoring system. The vacuum circuit breaker vacuum degree on-line monitoring system comprises an upper computer and a lower computer, wherein a vacuum circuit breaker vacuum degree on-line monitoring device serves as the lower computer, and comprises three sensors and a vacuum degree on-line monitor. The vacuum circuit breaker vacuum degree on-line monitoring system has the advantages of being stable in performance and high in reliability, feasibility and performance cost ratio, and convenient to maintain and easy to use.

Description

technical field [0001] The invention belongs to the technical field of electric power systems, and relates to an on-line monitoring system for the vacuum degree of a vacuum circuit breaker, in particular to an on-line monitoring system for the vacuum degree of a 10kV vacuum circuit breaker. Background technique [0002] Vacuum high voltage circuit breaker is one of the most important equipment in the power system. It mainly plays the role of control, protection and safety isolation in the power grid. It has good insulation performance, small opening distance, low arc voltage, small arc energy, and electrical machinery It has a series of advantages such as long service life and many rated breaking current times. It is generally used in 10-35kV switchgear, and its operating status directly determines the safety and efficiency of the power system. During the operation of the vacuum circuit breaker, the vacuum degree will gradually decrease, and the vacuum leaks to a certain ext...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L21/00
Inventor 程江洲王思颖陈晨黎蓉
Owner CHINA THREE GORGES UNIV