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GIS knife switch air chamber metal particle detection method and detection device

A detection device and metal particle technology, which is applied to measuring devices, optical methods for testing, individual particle analysis, etc., can solve problems such as low sensitivity and inability to achieve early warning, so as to reduce the cost of the power grid and reduce the incidence of accidents Effect

Pending Publication Date: 2021-03-30
GUANGXI POWER GRID ELECTRIC POWER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, neither the gas chromatography detection method nor the partial discharge method directly detects the parameters of the factors causing the discharge, but detects the ultrasonic waves and decomposition products generated by the discharge, which are indirect methods and the sensitivity is not high.
And it can only be used after the gas chamber of the GIS knife gate has been discharged, and early warning cannot be achieved

Method used

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  • GIS knife switch air chamber metal particle detection method and detection device
  • GIS knife switch air chamber metal particle detection method and detection device

Examples

Experimental program
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Effect test

Embodiment 1

[0025] figure 1 A flow chart of a method for detecting metal particles in a GIS knife lock air chamber in an embodiment of the present invention is shown, including the following steps:

[0026] S1: Connect the detection device to the observation hole of the GIS air chamber through the connection module;

[0027] S2: The detection device emits strong light to the inside of the gas chamber through the observation hole;

[0028] S3: The detection device receives the reflection intensity of the metal particles inside the gas chamber of the GIS knife lock, and obtains the aggregation size of the metal particles through photoelectric signal processing, and stores them;

[0029] S4: When the aggregated size of the metal particles exceeds the threshold, the detection device sends out an alarm;

[0030] S5: Change the lens angle and direction of the detection device, and re-detect the aggregation size of the metal particles.

[0031] figure 2 A schematic structural diagram of the...

Embodiment 2

[0040] figure 2 It shows a schematic structural diagram of the detection device in the embodiment of the present invention, the detection device includes: a connection module, an adjustment module, a light source module, an imaging module, a photoelectric signal processing module, a storage module and a diagnosis module, wherein: the connection module The light source module is connected to the imaging module, the light source module is connected to the adjustment module, the orientation module is connected to the optical signal processing module, the optical signal processing module is connected to the storage module, and the storage module is connected to the The diagnostic module described above.

[0041] The connection module is used for firmly connecting the detection device with the observation hole of the GIS knife lock air chamber.

[0042] The adjustment module is used to change the angle and direction of the lens of the detection device to realize the transformatio...

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Abstract

The invention discloses a GIS knife switch air chamber metal particle detection method and detection device. The detection device comprises a connection module, an adjusting module, a light source module, an image capture module, a photoelectric signal processing module, a storage module and a diagnosis module; the connection module is connected with the light source module and the image capture module; the light source module is connected with the adjusting module; the image capture module is connected with the optical signal processing module; the optical signal processing module is connected with the storage module; and the storage module is connected with the diagnosis module. According to the detection method and detection device of the embodiment of the invention, the aggregation size of metal particles is determined by detecting the reflection intensity of the metal particles in a GIS disconnecting link air chamber, and the condition of the metal particles in the GIS disconnecting link air chamber can be directly, quickly and accurately detected in real time.

Description

technical field [0001] The invention relates to the technical field of electric power detection, in particular to a method and a detection device for detecting metal particles in a gas chamber of a GIS knife gate. Background technique [0002] In recent years, gas-insulated metal-enclosed switchgear (GIS) has a small footprint, is less affected by climatic conditions, has a long service life, requires less maintenance work, has a compact structure, is easy to install, and is suitable for areas with complex terrain and narrow terrain. Features, widely used in power industry. However, as the number of GIS substations continues to increase, GIS equipment failures are also increasing. As the main moving part of the GIS knife switch, due to the need for frequent switching operations, there is friction between the dynamic and static contacts, resulting in the presence of abrasive metal particles inside the gas chamber. The size of these metal particles deposited on the cylinder ...

Claims

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Application Information

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IPC IPC(8): G01N15/10G01N15/14G01R31/12G08B21/18
CPCG01N15/10G01N15/14G01R31/1218G01R31/1227G01R31/1281G08B21/182G01N2015/1493G01N2015/1029
Inventor 边美华张兴森彭家宁杨艺云卢展强李君华刘桂婵梁世容
Owner GUANGXI POWER GRID ELECTRIC POWER RES INST
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