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Fatigue test device and method for solid insulation degradation process

A technology of solid insulation and fatigue testing, which is applied in the direction of testing dielectric strength, etc., can solve the problems of few mechanical performance parameters, and achieve the effect of reducing costs and improving work efficiency

Active Publication Date: 2014-05-28
WUHAN UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among the above studies, there are few studies that describe the insulation aging process from the perspective of fatigue (only Li Yu-qiong’s study has relevant descriptions); among the parameters for evaluating the insulation state, there are mainly electrical parameters, and few mechanical performance parameters

Method used

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  • Fatigue test device and method for solid insulation degradation process
  • Fatigue test device and method for solid insulation degradation process
  • Fatigue test device and method for solid insulation degradation process

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Experimental program
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Embodiment

[0038] test bench and circuits such as figure 1 and figure 2 shown. The experimental part includes a glass cabinet, a platform assembly set in the glass cabinet for placing the tested product, a high-voltage system and a low-voltage system; the glass cabinet is filled with insulating oil; the glass cabinet is supported on the ground by insulating pillars; the high-voltage Part of the system is set inside the glass cabinet, and the other part is set outside the glass cabinet; part of the low-voltage system is set inside the glass cabinet, and the other part is set outside the glass cabinet;

[0039] The platform assembly includes a platform and positive and negative electrodes, and the tested product is placed between the positive and negative electrodes;

[0040] The high pressure system includes:

[0041] The high-voltage system includes a high-voltage part and an insulating part; the high-voltage part includes a test transformer and its lead wires; the insulating part in...

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Abstract

The invention relates to a fatigue test device and method for a solid insulation degradation process. The fatigue test device comprises a glass cabinet, a platform assembly arranged in the glass cabinet and used for placement of a tested object, a high voltage system and a low voltage system. The glass cabinet is filled with insulating oil. The glass cabinet is supported against the ground through insulating supporting columns. Part of the high voltage system is arranged in the glass cabinet, and the other part of the high voltage system is arranged outside the glass cabinet. Part of the low voltage system is arranged in the glass cabinet, and the other part of the low voltage system is arranged outside the glass cabinet. An index model used for evaluating the insulating fatigue state is set up through the influences of the test waveform, the frequency and the temperature on electric treeing; a model for describing an insulating fatigue service life curve is set up; a model for conducting service life evaluation on the insulating state by means of the fatigue service life curve and running test data is set up. According to the fatigue test device and method, the insulating aging development process can be accurately described and predicted, and therefore the insulating state can be accurately judged, the state maintenance work efficiency of electrical devices can be improved, and cost is reduced.

Description

[0001] technical field [0002] The invention relates to a fatigue test device and a test method, in particular to a fatigue test device and a test method for the deterioration process of solid insulation. Background technique [0003] The insulation status of electrical equipment is extremely important to the stable operation of the power system. The traditional electrical equipment insulation periodic test method (preventive test) cannot meet the needs of modern power systems due to low test voltage and the need for power outages. On-line diagnosis of the insulation state of electrical equipment is an inevitable trend in the development of insulation technology, and it is also the basis for realizing condition-based maintenance of electrical equipment. [0004] Insulation materials for electrical equipment include gas insulation, liquid insulation and solid insulation (oil-paper insulation is a combination of liquid and solid). In actual operation, solid insulation not on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12
Inventor 鲁海亮廖一帆张福增袁小清蓝磊文豹文习山
Owner WUHAN UNIV
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