A Method for Measuring Low Frequency Swing of High Voltage Circuit Breaker

Abstract

The invention discloses a high-voltage circuit breaker low-frequency swinging measuring method, wherein two laser ranging sensors are arranged around the high-voltage circuit breaker, the laser ranging sensors measure the distance of the position to be measured on the high-voltage circuit breaker at a certain frequency, swinging tracks of the position to be measured in the projection direction ofthe connecting lines of the laser ranging sensors and the position to be measured on the horizontal plane according to the distance and the included angles of the connecting lines of the laser rangingsensors and the position to be measured and the horizontal direction, and the swinging tracks in the two directions can be decomposed to the two directions that are perpendicular to each other, and acomplete swinging track of the position to be measured can be obtained by combination and calculation. The measuring method realizes the low frequency swinging track of the non-contact long distancemeasuring high voltage circuit breaker.

Description

technical field [0001] The invention relates to a method for measuring low-frequency swing of a high-voltage circuit breaker in an ultra-high-voltage power transmission and transformation system. Background technique [0002] In the ultra-high voltage transmission and transformation system, the top of the high-voltage circuit breaker has a high voltage of up to 750 kV, and its swing range is the largest. But it is not small; because the top of the high-voltage circuit breaker has ultra-high voltage, the entire circuit breaker bushing is hollow, made of insulating material, rigid, and the whole body is not allowed to approach from a safety point of view, and the sensor cannot be directly installed to Measure its swing, so there is no effective way to measure the low-frequency swing of the top of the high-voltage circuit breaker. [0003] The disclosure of the above background technical content is only used to assist in understanding the concept and technical solution of the ...

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Problems solved by technology

[0002] In the ultra-high voltage transmission and transformation system, the top of the high-voltage circuit breaker has a high voltage of up to 750 kV, and its swing range is the largest. But it is not small; because the top of the high-voltage circuit breaker has ultra-high voltage, the entire circuit breaker bushing is hollow, made of insulating material, rigid, and the whole body is not allowed to approach from a safety point of view, and the sensor cannot be directly installed to Measure its swing, so there is no effective way to measure the low-frequency swing of the top of the high-voltage circuit breaker

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