Holographic detection device and method for gas content in GIS switch

Abstract

The embodiment of the invention discloses a holographic detection device for gas content in a GIS switch, which comprises a laser and a data processing system; the laser comprises a laser emitter and a laser receiver; the laser emitter and the laser receiver are fixed at a sampling port of the GIS switch through flanges, and are connected with the data processing system through optical cable. The embodiment of the invention also discloses a holographic detection method for gas content in a GIS switch, which comprises the following steps: emitting a laser beam into the inside of a GIS switch; receiving the laser beam from the inside of the GIS switch; calculating the hydrogen fluoride gas content inside the GIS switch based on the light intensity of the emitted laser beam and the light intensity of the received laser beam. In the embodiment of the invention, the laser beam runs through the inside of the GIS switch, so the detection results have less error, and can reflect the real condition of the inside of the GIS switch.

Description

technical field [0001] The invention relates to the field of detection of characteristic gas components in electrical equipment, in particular to a holographic detection device and method for gas content in a GIS switch. Background technique [0002] Since the 1970s, sulfur hexafluoride (SF 6 ) gas is widely used as an insulating medium for electrical equipment. However, due to blindness in design, material, process and maintenance, there may be local insulation defects inside the equipment. Under the action of heat and electricity, SF 6 The gas and solid insulating materials decompose continuously, and the insulating performance decreases continuously, which even leads to accidents. Therefore, how to detect potential faults and dangers in electrical equipment as early as possible and reduce the accident rate has always been one of the key research directions for electric workers. [0003] The study found that when SF 6 When a fault occurs inside an electrical device, th...

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Problems solved by technology

[0005] In view of this, the purpose of the embodiment of the present invention is to provide a holographic detection device and method for gas content in a GIS switch to solve the problem that the representativeness of the sample gas obtained in the existing sampling bag method is not strong due to the fact that the sampling port is far away from the main body of the device, and the detection The problem of large error in the result

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