Oil-immersed type sleeve multilayer insulation non-uniform damping experimental method

A technology of multi-layer insulation and experimental method, which can be used in measuring devices, instruments, measuring electricity, etc., and can solve problems such as large errors and sampling difficulties.

Active Publication Date: 2018-05-29
YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For the prepared damp casing, the direct test is usually adopted by chemical titration, which is not only difficult to sam...

Method used

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  • Oil-immersed type sleeve multilayer insulation non-uniform damping experimental method
  • Oil-immersed type sleeve multilayer insulation non-uniform damping experimental method
  • Oil-immersed type sleeve multilayer insulation non-uniform damping experimental method

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Embodiment Construction

[0042] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description serve to explain the principles of the application.

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, In other words, other drawings can also be obtained from these drawings without paying creative labor.

[0044] figure 1 For the flow chart of an experimental method for uneven multi-layer insulation of oil-immersed bushings provided in this example, see figure 1 , the method includes the following steps:

[0045] S101: Build an experimental platform for uneven moisture exposure of multi-layer insulation of oil-immersed bushings...

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Abstract

The invention discloses an oil-immersed type sleeve multilayer insulation non-uniform damping experimental method. The method comprises that firstly, an oil-immersed type sleeve multilayer insulationnon-uniform damping experimental platform is built, after the frequency domain characteristic parameters of an oil-immersed type sleeve are obtained, the weight factor at the characteristic frequencypoint is obtained through calculation, so that a damping state evaluation weight index is determined, sleeve damping state parameters are estimated based on the frequency domain characteristic quantity, and furthermore, the damping state of the test sample is estimated to achieve the purpose of controlling the damping state of the test sample. The experimental method and platform provided by the invention can realize the multi-layer insulation controllable non-uniform damping of the oil-immersed type sleeve.

Description

technical field [0001] The invention belongs to the field of oil-immersed bushing insulation state experiments, and in particular relates to an experimental method for non-uniform damping of multi-layer insulation of oil-immersed bushings. Background technique [0002] The oil-immersed bushing is an important auxiliary safety device in the power system, and it plays the role of lead wire and insulation for large oil-immersed transformers. The engineering practice shows that damp bushings account for a large proportion of bushing failures, and research on the insulation characteristics of oil-immersed bushings under damp conditions is of great significance to ensure the safe and reliable operation of power systems. [0003] At present, the research on the damp bushing is usually by preparing the bushing under different damp conditions, testing its insulation parameters, and studying the influence of moisture content on the insulation parameters. For the prepared damp casing,...

Claims

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Application Information

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IPC IPC(8): G01R31/12
CPCG01R31/1227
Inventor 王科徐肖伟谭向宇申元邹德旭周仿荣项恩新彭晶
Owner YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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