Outdoor high-voltage vacuum circuit breaker

Abstract

The invention provides an outdoor high-voltage vacuum circuit breaker, and relates to the technical field of vacuum circuit breakers. Comprising a circuit breaker main body, and the circuit breaker main body comprises a control assembly and a vacuum arc-extinguishing chamber which are connected with each other; the device also comprises an infrared imager, and the input end of the infrared imager faces the vacuum arc-extinguishing chamber. According to the thermal imaging principle, due to the fact that when a static end contact and a moving end contact continuously abut against each other and are disconnected, temperature rise of the static end contact and the moving end contact is inevitably caused, and thermal imaging pictures of the static end contact and the moving end contact can be presented in the presence of an infrared imager. Therefore, a worker can clearly observe and understand the closing state between the static end contact and the moving end contact. And the temperature of the static end contact and the temperature of the moving end contact can be judged according to the color depth of images formed by the static end contact and the moving end contact, so that the use defects of the whole device are overcome, and the whole device has higher practicability during use.

Description

technical field [0001] The invention relates to the technical field of vacuum circuit breakers, in particular to an outdoor high-voltage vacuum circuit breaker. Background technique [0002] Vacuum circuit breaker (English name: Vacuum circuit breaker) is named for its arc extinguishing medium and the insulating medium of the contact gap after arc extinguishing are both high vacuum; it has small size, light weight, suitable for frequent operation, and arc extinguishing without maintenance Advantages, it is widely used in distribution network. Vacuum circuit breaker is an indoor power distribution device in 3-10kV, 50Hz three-phase AC system, which can be used for protection and control of electrical equipment in industrial and mining enterprises, power plants, and substations, especially suitable for oil-free, less In places where maintenance and frequent operations are used, circuit breakers can be configured in central cabinets, double-layer cabinets, and fixed cabinets t...

AI Technical Summary

Problems solved by technology

[0003] When the existing vacuum circuit breaker is in use, the static end contact and the moving end contact are controlled in the vacuum interrupter to realize the contact and disconnection action, and the vacuum interrupter is in a sealed state. It is not convenient for the staff to understand the actual situation of the internal static end contact and the moving end contact. Whether it is during maintenance or use, there are great safety hazards, and there are certain use limitations, which leads to the practicability of the overall equipment. reduced by

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