Device for measuring pressure of high-voltage circuit breaker arc extinguish chamber based on acoustic surface waves

Abstract

The invention relates to a device for measuring pressure of a high-voltage circuit breaker arc extinguish chamber based on acoustic surface waves. The device comprises the high-voltage circuit breaker arc extinguish chamber of a totally-sealed structure, an acoustic surface wave sensor tag is placed in the arc extinguish chamber, an acoustic surface wave receiver is arranged outside the arc extinguish chamber, the acoustic surface wave sensor tag is fixed to the wall of the inner side of the arc extinguish chamber, the position of the acoustic surface wave sensor tag corresponds to the position of the acoustic surface wave receiver arranged outside the arc extinguish chamber, and the distance between the acoustic surface wave sensor tag and the acoustic surface wave receiver is within 40 CM. The direction of a transmitting antenna of the acoustic surface wave receiver points to the acoustic surface wave sensor tag. The pressure change condition in the arc extinguish chamber can be monitored by the device, the problem that the effective means for conducting real-time monitoring on the high-voltage circuit breaker arc extinguish chamber of an electric system does not exist for a long time is solved, and the major breakthrough is achieved in the technological means.

Description

technical field [0001] The invention belongs to the field of electromechanical technology, in particular to a pressure measuring device for an arc extinguishing chamber of a high-voltage circuit breaker based on surface acoustic waves. Background technique [0002] In the power system, the arc extinguishing chamber of the high voltage circuit breaker is a fully enclosed structure. In order to ensure the arc extinguishing performance during operation, the arc extinguishing chamber of the high voltage circuit breaker must have a certain pressure to ensure the arc extinguishing ability. The pressure is monitored, but because the arc extinguishing chamber is a fully enclosed structure, there has been no effective means to achieve monitoring. Contents of the invention [0003] The object of the present invention is to address the deficiencies of the prior art, and propose a surface acoustic wave-based high-voltage circuit breaker interrupter pressure measurement device. [000...

AI Technical Summary

Problems solved by technology

[0002] In the power system, the arc extinguishing chamber of the high voltage circuit breaker is a fully enclosed structure. In order to ensure the arc extinguishing performance during operation, the arc extinguishing chamber of the high voltage circuit breaker must have a certain pressure to ensure the arc extinguishing ability. The pressure is monitored, but because the arc extinguishing chamber is a fully enclosed structure, there has been no effective means to achieve monitoring

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