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Surface charge measuring system with external motion control mechanism and measuring method

A surface charge and motion control technology, applied in the direction of measuring electrical variables, measuring devices, instruments, etc., can solve the problems of difficult measurement of surface charge, achieve the effects of reducing SF6 amount, increasing safety distance, and high spatial resolution

Inactive Publication Date: 2014-07-30
CHONGQING UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the invention is to solve the problem of high pressure SF 6 In the environment, it is difficult to measure the surface charge of components such as insulators with complex shapes

Method used

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  • Surface charge measuring system with external motion control mechanism and measuring method
  • Surface charge measuring system with external motion control mechanism and measuring method
  • Surface charge measuring system with external motion control mechanism and measuring method

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Experimental program
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Effect test

Embodiment 1

[0045] This embodiment discloses a surface charge measurement system with an external motion control mechanism, which is characterized in that it mainly includes a main casing 8, a side casing 9, an upper parallel plate electrode 7, a lower parallel plate electrode 25, and an electrostatic measurement probe 20 And high-speed high-voltage electrostatic potentiometer 47.

[0046] The main casing 8 is a hollow cylinder with open upper and lower ends, and has a hollow inner chamber. The lateral housing 9 is a hollow cylinder with one end open and the other closed, which also has a hollow inner chamber.

[0047] The axial direction of the main housing 8 is perpendicular to the horizontal plane, and the axial direction of the lateral housing 9 is parallel to the horizontal plane. The open end of the side housing 9 is connected to the cylinder wall of the main housing 8 . The cylinder wall of the main housing 8 is provided with a through hole, and the open end of the lateral housin...

Embodiment 2

[0060] The main structure of this embodiment is the same as that of Embodiment 1. Further, the upper end of the high voltage bushing 1 is located above the upper cover plate 5 , that is, the upper end of the high voltage bushing 1 is exposed above the upper cover plate 5 . The lower end of the high voltage bushing 1 protrudes into the inner cavity of the main casing 8 . The high voltage bushing 1 has a hollow inner cavity, and its axial direction is perpendicular to the horizontal plane.

[0061] The upper and lower ends of the high-voltage bushing 1 are provided with through holes for the high-voltage conductive rod 4 to pass through. The first static sealing seat ring 3 and the second static sealing seat ring 6 are respectively embedded in the through holes at the upper and lower ends of the high voltage bushing 1 . The lower end of the high-voltage conductive rod 4 first passes through the first static sealing seat 3 and then the second static sealing seat 6, and then ext...

Embodiment 3

[0063] The main structure of this embodiment is the same as that of Embodiment 1.

[0064] Further, it also includes a rotating shaft fixing bracket 50 located in the inner cavity of the lateral housing 9 . The first dynamic seal seat ring 11, the transverse rotation shaft 12, the first reducer 13, the first stepper motor 14, the second stepper motor 16, the transverse slider 15, the transverse guide rail 18, the transverse ball screw 17, the drive Bevel gear 51, driven bevel gear 52, probe frame 54, gear rotating shaft 53, rotating shaft fixing frame 50, transverse polished rod 19 and bottom bracket 21 etc. form the mechanism for controlling the movement of the measuring probe.

[0065] The second stepper motor 16 drives the horizontal slider 15 to move in the horizontal direction. The transverse slider 15 is connected to one end of a transverse polished rod 19 . The other end of the transverse polished rod 19 is inserted into the lateral casing 9 and connected with the rot...

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Abstract

The invention discloses a surface charge measuring system with an external motion control mechanism and a measuring method. The surface charge measuring system and the measuring method aim to solve the problem that under a high-voltage SF6 environment, the surface charge of a component such as an insulator in a complex shape is difficult to measure. The surface charge measuring system mainly comprises a main shell, a side shell, an upper parallel-plate electrode, a lower parallel-plate electrode, an electrostatic measuring probe and a high-speed high-voltage electrostatic potential meter. According to a surface charge measuring device provided in the surface charge measuring system and the measurement method, the operation that one of the electrostatic measuring probe and the insulator rotates and the other one of the electrostatic measuring probe and the insulator moves horizontally can be achieved simultaneously by using equipment such as a multifunctional motion controller and a stepping motor, and it is ensured that the electrostatic measuring probe can scan and measure all parts of the surface of the insulator to be measured step by step.

Description

technical field [0001] The invention belongs to the field of high-voltage equipment and electronic technology, and specifically relates to a high-voltage SF 6 An external surface charge measurement system and method of use of a motion control mechanism in an environment. Background technique [0002] With the continuous improvement of the voltage level of my country's power system, gas-insulated equipment has been widely used, such as gas-insulated switchgear (GIS), gas-insulated transformer (GIT) and gas-insulated metal-enclosed transmission line (GIL), the three Mostly in SF 6 as the main insulating medium. Compared with traditional open power distribution devices, gas-insulated equipment has the advantages of small size, less floor space, no influence of external environment, high insulation strength, low audible noise, no fire hazard, long maintenance cycle and less maintenance. , is a symbol of high reliability, high safety, low maintenance, and even maintenance-free....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/24
Inventor 唐炬张晓星王邸博刘凯曾福平刘欣李丽萍
Owner CHONGQING UNIV
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