Intelligent high-voltage vacuum circuit breaker

Abstract

The invention discloses an intelligent high-voltage vacuum circuit breaker, which comprises three arc extinguish chamber posts, wherein each arc extinguish chamber post is provided with an upper support and a lower support; a vacuum arc extinguish chamber is formed in each arc extinguish chamber post; a moving conducting rod is arranged in each vacuum arc extinguish chamber; temperature probes are arranged at fractures of the upper support and the lower support of each arc extinguish chamber post; a contact wear induction device is arranged in each vacuum arc extinguish chamber; six temperature probes and three light source receiving sensors are connected to a central processing unit through an input circuit; and a signal output end of the central processing unit is connected with a monitoring center computer. The intelligent high-voltage vacuum circuit breaker can effectively detect and predict several key technical indexes, which affect the safety of system equipment, of the circuit breaker during on-line operation, thereby strengthening the safety and reliability of switching equipment of the circuit breaker.

Description

technical field [0001] The invention relates to the technical field of electric engineering, in particular to an intelligent high-voltage vacuum circuit breaker. Background technique [0002] The basis for realizing the condition-based maintenance of electrical equipment is the online condition monitoring of the equipment. Online monitoring can accurately and real-time reflect the status of electrical equipment and predict the service life, providing a basis for maintenance decisions. Electrical equipment condition monitoring is not only the basis of the equipment condition maintenance mode, but also the development needs of the electrical operation management mode currently being implemented in my country's electric power sector. [0003] At present, in the operation and use of various types of high-voltage vacuum circuit breakers in the power industry at home and abroad in different types of switch control equipment, there are two main points of failure caused by many equ...

AI Technical Summary

Problems solved by technology

[0003] At present, in the operation and use of various types of high-voltage vacuum circuit breakers in the power industry at home and abroad in different types of switch control equipment, there are two main points of failure caused by many equipment or very likely to cause accidents: one is the circuit breaker body and the conductor At the connection fracture, due to many variable factors of the dynamic and static contacts, the conduction resistance becomes larger, and the temperature rises quickly and the heat is serious; the second is the opening and closing fracture of the vacuum tube, after a period of operation, the dynamic and static contacts are worn out, and the bad contact affects the third same period, and can cause momentary operating overvoltage

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