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Method and system for measuring trap parameter of insulating material of polymer

A technology of insulating materials and trap parameters, applied in the direction of measuring electricity, measuring devices, analyzing materials, etc., can solve the problems of lack of characterization methods, and achieve the effect of strong anti-electromagnetic interference and good stability

Inactive Publication Date: 2007-07-25
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The aging of polymers is a rather complicated process, which is related to many factors, and there is still a lack of effective characterization methods

Method used

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  • Method and system for measuring trap parameter of insulating material of polymer
  • Method and system for measuring trap parameter of insulating material of polymer

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Experimental program
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Embodiment Construction

[0018] With reference to shown in Fig. 1, system of the present invention comprises an incubator 2, and incubator 2 inside has the metal disc electrode 6 of grounding, on the metal disc electrode 6 there is the polymer insulating sample 4 that is bonded by conductive silicone grease 5 , the top of the metal disc electrode 6 is also provided with a multi-needle electrode 3, which is connected with a high-voltage DC power supply 1; Type electrostatic probe 8, capacitive electrostatic probe 8 are connected with signal conditioning circuit 9, data acquisition circuit 10 and computer 11 arranged outside incubator 2 in turn.

[0019] During the experiment, the polymer insulating sample 4 was pasted on the metal disk electrode 6 with conductive silicone grease 5. The distance between the multi-needle electrode 3 and the surface of the polymer insulating sample 4 was about 2 mm. The high-voltage direct current power supply on the multi-needle electrode 3 1 Apply a DC high voltage of ±...

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Abstract

A method for measuring defect parameter of polymer insulation material includes setting a multi-needle electrode in insulated box, sticking test sample of said material grounding metal disc electrode in said box, placing multi-needle electrode above test sample to charge said test sample by utilizing high voltage DC power, moving test sample onto another grounding disc electrode to use short-circuit to discharge said test sample, utilizing capacity electrostatic probe to measure out surface potential of said test sample and obtaining defect energy level and defect density of insulation material through calculation.

Description

technical field [0001] The invention belongs to the field of dielectric properties and testing of solid insulating materials, and relates to a testing system and method for dielectric properties of insulating materials, in particular to a method and system for measuring trap parameters of polymer insulating materials. Background technique [0002] Polymer insulating materials have high DC resistance and low dielectric loss. Due to their good electrical, mechanical and chemical properties, they are often considered to be the best and most economical insulation and energy storage materials. They have great potential in the field of electrical insulation. Wide range of applications. However, in the process of use, the electrical aging phenomenon of polymer materials has puzzled electrical engineers. The short-term electrical strength of polymer insulating materials is very high, but the long-term electrical resistance is poor, which has restricted its further application. and ...

Claims

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Application Information

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IPC IPC(8): G01R31/00G01R31/02G01R31/12G01R27/26G01N27/00
Inventor 张冠军赵文彬杨凯董明
Owner XI AN JIAOTONG UNIV
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