Three-dimensional measuring device and method of charges on surface of basin-type insulator

A pot-type insulator and surface charge technology, which is applied to measuring devices, measuring electrical variables, instruments, etc., can solve the problems of complicated measurement of pot-type insulator surface charge and complicated surface shape of pot-type insulators, so as to ensure air tightness, guarantee Effects of reliability accuracy, high charge resolution and spatial resolution

Active Publication Date: 2014-09-03
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Application Information

AI Technical Summary

Problems solved by technology

[0006] To sum up, for the insulating solid surface, the commonly used measurement method is the electrostatic capacitance probe method, but because the surface shape of the pot insulator is complex, and the inside of the GIS is generally filled with 4-5 atmospheres of SF6 gas, the electrostatic probe I

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  • Three-dimensional measuring device and method of charges on surface of basin-type insulator
  • Three-dimensional measuring device and method of charges on surface of basin-type insulator

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Embodiment Construction

[0020] The invention provides a three-dimensional measuring device and method for the surface charge of a basin type insulator. Below in conjunction with embodiment the invention is described in further detail.

[0021] The basin type insulator surface charge three-dimensional measuring device that the present invention proposes, its structure is as follows figure 1 , 2 As shown, the GIS test chamber 7 is covered on the edge of the pot insulator 21, and the arc measuring probe 1 and the inclined plane measuring probe 3 as electrostatic measuring probes are respectively fixed on the lower end of the arc measuring probe bracket guide rail 2 and the inclined plane measuring probe bracket guide rail 4 lower ends; the upper ends of the curved surface measurement probe bracket guide rail 2 and the inclined plane measurement probe bracket guide rail 4 are symmetrically fixed on the tapered bracket outside the main shaft 8 including the inner shaft and the outer shaft, and rotate wit...

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Abstract

The invention belongs to the technical field of high-voltage equipment and electrostatic measuring, and discloses a three-dimensional measuring device and method of charges on the surface of a basin-type insulator. The device comprises an arc surface and inclined surface measuring probe, a probe support guide rail, a probe radial motion control mechanism, a link mechanism, a 360-degree rotation control disk, a reading mechanism, a lifting control lead screw, a control mechanism, a sealed through-connection cavity, a main shaft for controlling motion, a coupler and an operation platform base. The whole set of mechanisms is in sealed connection with a GIS testing cavity. The three-dimensional measuring device can realize three-dimensional control over charge measuring on the surface of the actual basin-type insulator; air impermeability of a testing device is guaranteed, therefore, the purpose that all-direction and totally-radial three-dimensional measuring is conducted on the charges on the surface of the basin-type insulator in voltage equipment or high-air-pressure environment is realized, and high charge resolution and spatial resolution is achieved in measuring the surfaces of various basin-type insulators. Meanwhile, the three-dimensional measuring device and method can be used for environments with high requirements for air impermeability and the measuring process can be observed.

Description

technical field [0001] The invention belongs to the technical field of high voltage and insulation measurement, in particular to a three-dimensional measurement device and method for the surface charge of a basin-type insulator. Background technique [0002] Gas-insulated combined electrical equipment (GIS) has the advantages of high insulation strength, low audible noise, no fire hazard, long maintenance cycle, saving floor space and less maintenance. It is gradually becoming a representative of modern substation equipment. It is low maintenance, even A symbol of maintenance-free, high reliability, and high safety. [0003] At present, most of the 330kV and 500kV substations built or newly built in our country use gas insulated switchgear. However, with the increase of the GIS voltage level and the increase of the number of systems put into operation, the internal faults of GIS equipment also increase. A large number of studies have shown that when a large amount of charg...

Claims

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Application Information

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IPC IPC(8): G01R29/24
Inventor 齐波李成榕
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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