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Method for testing dielectric response property of oil-filled paper capacitor bushing

A technology for dielectric response and characteristic testing, which is applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., and can solve the problems of high price and high research cost of true oil-paper capacitive bushings

Inactive Publication Date: 2017-07-28
CHONGQING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the real type oil-paper capacitive bushing is relatively expensive, and the cost of using it for experimental research is relatively high

Method used

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  • Method for testing dielectric response property of oil-filled paper capacitor bushing
  • Method for testing dielectric response property of oil-filled paper capacitor bushing
  • Method for testing dielectric response property of oil-filled paper capacitor bushing

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Embodiment Construction

[0060] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0061]The core of the invention is to provide a method for testing the dielectric response characteristics of oil-paper capacitive bushings, which can reduce the cost of testing the dielectric response of the bushing.

[0062] Please refer to figure 1 and figure 2 , figure 1 A flowchart of a method embodiment provided by the present invention; figure 2 for figure 1 The specific flowchart of step S1 in.

[0063] In a specific embodiment of the method for...

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Abstract

The invention discloses a method for testing the dielectric response property of an oil-filled paper capacitor bushing. The method comprises: building a bushing model the capacitance of which is equal to that of a bushing to be tested; performing simulation testing on the bushing model, and determining whether the bushing model is qualified; producing a qualified bushing model; processing the bushing model according to defect situations that need testing; and using the processed bushing model to carry out dielectric response property testing. The method uses the model instead of an actual oil-filled paper capacitor bushing for testing, can reduce the testing cost, avoids the problem of high economical cost caused by using a real bushing, avoids damage to the real bushing, and can ensure the accuracy of test results at the same time.

Description

technical field [0001] The invention relates to the technical field of power equipment, in particular to a method for testing the dielectric response characteristics of an oil-paper capacitive bushing. Background technique [0002] As a key component of power equipment such as power transformers and circuit breakers, high-voltage bushings are of great significance to the safety and stability of the power grid. At present, more than 80% of the bushings in operation in the world are oil-paper capacitive bushings, and the accidents of power transformer outage or damage caused by bushing failure account for 25% to 30% of power transformer failure events. [0003] In recent years, dielectric response technology has been widely used in the state assessment of oil-paper capacitive bushing oil-paper insulation systems due to its strong anti-interference ability and non-destructive characteristics. The results obtained are of great significance to ensure the safe operation of bushing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/20
CPCG01R31/20
Inventor 杨丽君郝建廖瑞金李剑杜永永高俊彭攀赵学童成立袁媛
Owner CHONGQING UNIV
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