Device for measuring electric charge quantity of moving metal particles in GIS (Gas Insulated Switchgear)
A technology for measuring devices and metal particles, which is applied to measuring devices, measuring electrical variables, instruments, etc., can solve problems such as the inability to realize real-time collection of metal particles, the calculation of the charge amount of metal particles has not been realized, and the inability to collect in real time.
Inactive Publication Date: 2021-09-28
STATE GRID TIANJIN ELECTRIC POWER +1
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Problems solved by technology
[0004] At present, research has been carried out on the calculation of the charge of metal particles in GIS, and the calculation method of the charge of spherical, linear and other regular-shaped metal particles has been obtained, but the calculation of the charge of irregular-shaped metal particles has not been realized, and the metal particles in motion cannot be realized. real-time collection of
[0005] To sum up, the measurement devices in the prior art cannot realize the measurement of the charge amount of moving metal particles with arbitrary shapes in GIS, and the defects that they cannot be collected in real time
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[0030] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0031] The invention provides a device for measuring the charge amount of moving metal particles in GIS, such as Figure 1 to Figure 6 As shown, it includes a metal cavity 1, a sleeve 2, a simulation chamber 3 and a measurement chamber 4, the metal cavity 1 and the sleeve 2 are detachably connected, and the simulation chamber 3 and the measurement chamber 4 are connected and both are set In the metal cavity 1,
[0032] The simulation chamber 3 includes a high voltage electrode 31, a ground electrode 32, a U-shaped groove 33 and a cover plate 34, the U-shaped groove 33 and the cover plate 34 are fixedly connected, and the upper central positions of the upper sides of the U-shaped groove 33 are symmetrically opened. There is a circular hole (not marked in the figure), and a semi-circular hole (not marked in the figure) is symmetrically opened at the lower cent...
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Abstract
The invention relates to a device for measuring the electric charge quantity of moving metal particles in a GIS, which comprises a metal cavity, a sleeve, a simulation chamber and a measurement chamber, wherein the metal cavity is detachably connected with the sleeve, and the simulation chamber and the measurement chamber are connected and arranged in the metal cavity. According to the measuring device provided by the invention, the cavity shell is used for simulating a high-pressure closed gas environment of the GIS, an electrode structure which is the same as that of the GIS is adopted in the simulation chamber, an electric field environment under operation of the GIS is simulated, movement of metal particles in different sizes and shapes in the simulation chamber is convenient to observe, and real-time collection of the moving metal particles is realized, so that the electric quantity of the metal particles is calculated. The measuring device is easy to realize and simple to operate, provides a reliable and effective platform for researching the change of the electric charge quantity of the moving metal particles in the GIS, and can realize the measurement of the electric charge quantity of the moving metal particles with different sizes and any shapes in the GIS.
Description
technical field [0001] The invention belongs to the technical field of charge measurement of metal particles, in particular to a device for measuring the charge amount of moving metal particles in GIS. Background technique [0002] In recent years, with the rapid development of the power industry, Gas Insulated Switch-gear (GIS for short) has been widely used in power systems. Electrical components such as arresters, some bus bars, bushings and / or cable terminals are enclosed and combined in a grounded metal casing, and the metal casing is filled with a certain pressure SF 6 Gas is used as an insulating medium to form a combined electrical appliance. Compared with conventional open switchgear, it has the advantages of strong breaking capacity, low failure rate, convenient installation and maintenance, and small footprint. [0003] While GIS has the above advantages, insulation failure is always one of the important factors affecting the reliability of GIS. Among them, the ...
Claims
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IPC IPC(8): G01R29/24
CPCG01R29/24
Inventor 徐轩何金任一张艳玲孙正明张黎明杨义根王佰淮张卫正徐业朝黄朝胡泉伟于啸苏展徐福李鲁博宋晓博辛晓虎金曦周光鲁魏占朋董天文
Owner STATE GRID TIANJIN ELECTRIC POWER