A state monitoring terminal and monitoring system for connecting the pressure plate of the electrical secondary circuit

Abstract

The invention provides a state monitoring terminal of an electrical secondary circuit connection pressing plate and a monitoring system thereof. Different position upper covers are used in the state monitoring terminal according to the two different states of throwing and retreating of each protection pressing plate, throwing and retreating state monitoring and signal outputting of each protection pressing plate can be achieved, the throwing and retreating state of each protection pressing plate can also be protected, meanwhile, the state monitoring terminal can be directly mounted on an insulation base of one mounted protection pressing plate, the position and the structure of an existing protection pressing plate do not need to be modified or replaced, and mounting is simple and convenient. In the protection pressing plate state monitoring system, the information of all the state monitoring terminals is collected through a pressing plate signal concentrated collector and is transmitted to a monitoring computer, and routing inspection personnel can understand and operate the states of all the pressing plates in real time conveniently by simply and visually checking the throwing and retreating state of each monitored protection pressing plate displayed by the monitoring computer.

Description

technical field [0001] The invention relates to the technical field of substation equipment state monitoring, in particular to a protection pressure plate state monitoring terminal and a protection pressure plate state monitoring system using the terminal. Background technique [0002] The protective pressure plate (also known as the protective connecting piece) is the most widely used in domestic protective devices because of the visibility of the connection and disconnection points after operation. At present, a large number of protective pressure plates are installed on the protection screens of power plants and substations that have been put into operation. Due to the intuitive disconnection point, the operating personnel can judge the state of the relay protection device circuit and provide protection for maintenance and operation. Great convenience. According to the position of the secondary circuit of the access protection device, the protection pressure plate can be...

AI Technical Summary

Problems solved by technology

[0007] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a condition monitoring terminal for connecting the pressure plate of the electrical secondary circuit, and a state monitoring system for the protection pressure plate using the state monitoring terminal, which is used for replacing existing In the case of the installed protection pressure plate, the monitoring and monitoring of the throw-in and withdrawal status of the protection pressure plate is realized, so as to solve the difficulty in identifying and monitoring the throw-in and withdrawal status of the installed protection pressure plate in the prior art, and it is impossible to effectively prevent the error of the protection pressure plate. Issues of casting, wrong return and poor contact

Images