Intelligent on-line monitoring system of high-voltage switch

Abstract

The invention provides an intelligent on-line monitoring system of a high-voltage switch, which comprises a sensor unit, a data acquisition unit, a central processing unit and a communication unit which are connected in sequence through a backboard bus, wherein the sensor unit is used for converting the acquired information quantity into a voltage signal; the data acquisition unit is used for converting the voltage signal into a digital signal; the central processing unit is used for compiling and processing the digital signal and comparing the processed digital signal with the preset criterion to obtain state evaluation or alarm of the high-voltage switch; and the filed data result acquired by the communication unit is transmitted to a monitoring system of an upper computer through an optical fiber Ethernet. The system can realize the real-time judgment of an operation field of a circuit breaker; the judgment results include a normal operation state, an early warning state and a fault repair state; and in addition, the system can transmit the early warning state to a remote terminal and a monitoring center and realize the real-time on-line monitoring.

Description

technical field [0001] The invention relates to a high-voltage switch monitoring technology, in particular to an intelligent online monitoring system for a high-voltage switch, which belongs to the technical field of high-voltage intelligent electrical appliances. Background technique [0002] With the rapid increase of my country's electricity load and the large span of my country's supply and demand positions, the high-voltage transmission lines and transmission levels of the State Grid have been further improved in recent years, which has led to a sharp increase in the demand for high-voltage circuit breaker equipment. At the same time, the stability of high-voltage circuit breakers The operation also improves accordingly. The high-voltage circuit breaker is one of the important equipment in the power system. It plays the dual task of control and protection. Its operating status directly affects the operation stability and power supply reliability of the power system. When...

AI Technical Summary

Problems solved by technology

However, the disadvantages of this invention are: this invention mainly provides a method and device for contact abrasion in electric switching devices, its function is relatively single, and the technical means adopted are complicated, and the scope of application is limited, which is not conducive to popularization and application

However, the disadvantages of this invention are: the temperature and pressure real-time monitoring system of the substation high-voltage switch hydraulic operating mechanism box of the invention is mainly for online monitoring and control of the temperature and pressure of the high-voltage switch hydraulic operating mechanism box, and its function is relatively single. The technical means are complicated, which is not conducive to popularization and application

[0005] There are serious deficiencies in the "regular maintenance" planning system currently adopted in our country, such as insufficient temporary maintenance, excessive maintenance, blind maintenance or maintenance accidents caused by improper maintenance

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