High-voltage vacuum interrupter with on-line monitoring of working conditions based on light pipe

Abstract

The invention discloses a high-pressure vacuum interrupter that can be monitored online based on the working condition of the light guide tube. The sealed bellows communicate with the high-pressure vacuum interrupter, the reflective mirror is fixed at the lower end of the sealed bellows, and the first emitting light guide tube ends The head and the end of the first receiving light pipe are arranged on the underside of the reflective mirror, the first emitting light pipe and the first receiving light pipe are respectively connected to the first electro-optical conversion circuit and the first photoelectric conversion circuit, and the grating sheet is fixed on the vacuum extinguisher. On the moving conductive rod of the arc chamber, the end of the second emitting light guide is arranged on one side of the grating sheet, the end of the second receiving light guide is arranged on the other side of the grating sheet, the second emitting light guide and the second receiving light guide The tubes are respectively connected to the second electro-optical conversion circuit and the second photoelectric conversion circuit. The invention can monitor three main working conditions of the vacuum degree of the vacuum interrupter, the contact temperature of the contact and the movement of the movable contact on-line, so as to ensure the continuous, safe and economical operation of the power grid.

Description

technical field [0001] The invention relates to a vacuum interrupter, in particular to a high-voltage vacuum interrupter which can be monitored online based on the working condition of a light guide tube. Background technique [0002] The high-voltage vacuum interrupter is the main and key component of the high-voltage switch, and the high-voltage power grid is connected or disconnected by it. Compared with other forms of high-voltage interrupters, high-voltage vacuum interrupters have the characteristics of small size, no pollution, convenient use, and low price, so they are most commonly used in high-voltage switches. The quality of the high-voltage vacuum interrupter is extremely important. Quality problems will cause partial or even large-scale power outages or collapses of the power grid, which will bring great harm to the national economy, people's lives and social stability. The high-voltage vacuum interrupter is generally installed in the high-voltage switchgear, an...

AI Technical Summary

Problems solved by technology

[0003] At present, there is a lack of a high-voltage vacuum interrupter on the market that can monitor its working conditions online, so as to understand the quality deterioration of the high-voltage vacuum interrupter in real time, and then take timely measures to avoid accidents.

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