Measurement system and method for surface potential distribution of insulating material in various environments

A technology of insulating material and surface potential, applied in the measurement of electrical variables, measurement of electricity, measurement devices, etc., can solve the problems of single gas atmosphere and inability to adjust environmental parameters, achieve comprehensive measurement data, reduce the number of times of opening the cavity to replace the sample, The effect of saving test time

Inactive Publication Date: 2019-07-23
HARBIN UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the defect that the existing surface potential measurement system is suitable for a single gas atmosphere and the environmental parameters cannot be adjusted, the present invention provides a measurement system for the surface potential distribution of insulating materials in various environments that can adapt to various atmospheres and can adjust environmental parameters and the measurement system. method

Method used

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  • Measurement system and method for surface potential distribution of insulating material in various environments
  • Measurement system and method for surface potential distribution of insulating material in various environments
  • Measurement system and method for surface potential distribution of insulating material in various environments

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Embodiment 1

[0031] combine Figure 1-Figure 8 Describe this embodiment. In this embodiment, the measurement system for the surface potential distribution of insulating materials under various environments involved in this embodiment includes a corona charging system 1, a data acquisition system 2, a sealed test chamber 3, and a comprehensive detection system. Unit 4, upper computer 5, integrated control unit 6, the corona charging system 1, data acquisition system 2 are connected to the sealing test chamber 3, and the input end of the sealing test chamber 3 and the comprehensive detection unit 4 passes through the wire hole connected, the output end of the integrated detection unit 4 is connected to the upper computer 5, the upper computer 5 is connected to the input end of the integrated control unit 6, and the output end of the integrated control unit 6 is connected to the sealing test chamber 3 through a line hole connect.

[0032]More specifically: the corona charging system 1 includ...

Embodiment 2

[0040] This embodiment is described in conjunction with Embodiment 1. In this embodiment, a method for measuring the surface potential distribution measurement system of an insulating material under various environments involved in this embodiment includes the following steps:

[0041] (1) Test preparation: on the premise of confirming that the system power is turned off, install the sample and fix the position of the electrode and probe, lock the flange cover, make sure that the connections of all parts of the measurement system and the airtightness of the sealing cavity are intact, and open system power.

[0042] (2) Measurement operation process: pump out the air in the cavity to a vacuum state through an external vacuum pump, inject gas into the sealed test cavity or maintain a vacuum according to the conditions required for the test, and control the pressure in the cavity through the pressure control device; the environmental parameters required for the test (Temperature,...

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Abstract

The invention relates to a measurement system and method for surface potential distribution of an insulating material in various environments and belongs to the field of testing of performance of theinsulating material. The invention provides a measurement system and method for surface potential distribution of an insulating material in various environments that can adapt to multiple atmospheresand can adjust environmental parameters. According to the system and the method in the invention, a corona charging system and a data acquisition system are connected with a sealing test cavity, the sealing test cavity is connected with the input end of a comprehensive detection unit through a wire hole, the output end of the comprehensive detection unit is connected with an upper computer, the upper computer is connected with the input end of the comprehensive control unit, and the output end of the comprehensive control unit is connected with the sealing test cavity through the wire hole. The system and the method are mainly used for measuring the surface potential distribution of the insulating material in various environments.

Description

technical field [0001] The invention belongs to the field of performance testing of insulating materials, and in particular relates to a measuring system and a measuring method for the surface potential distribution of insulating materials under various environments. Background technique [0002] With the rapid development of UHVDC transmission technology, the demand for high-voltage DC power equipment in power systems is becoming increasingly urgent. Under the action of a DC electric field for a long time, the surface of the polymer insulating medium tends to accumulate charges, which cannot be dissipated for a long time. The accumulation of surface charges is likely to cause distortion of the electric field on the surface of the material and even cause flashover along the surface. With the continuous improvement of the voltage level of the DC transmission system, the surface flashover of the supporting insulator has become a common accident of DC GIS equipment, causing a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/24G01R31/12
CPCG01R29/24G01R31/1263
Inventor 陈庆国宁鑫王新宇池明赫林林
Owner HARBIN UNIV OF SCI & TECH
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