Electron dissipation measuring device in nano modified transformer oil

A technology of measuring device and transformer oil, applied in the direction of measuring device, electrostatic field measurement, measuring electricity, etc., to achieve the effect of solving electronic dissipation, deepening understanding, and improving the structure of oil-paper insulation system

Inactive Publication Date: 2019-09-20
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Abstract
  • Description
  • Claims
  • Application Information

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However, how to verify the effect of the polarization of nanoparticles

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  • Electron dissipation measuring device in nano modified transformer oil

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Embodiment Construction

[0025] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0026] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and / or groups thereof. It will be understoo...

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Abstract

The embodiment of the invention provides an electron dissipation measuring device in nano modified transformer oil. The electron dissipation measuring device in nano modified transformer oil comprises a sample system, an electron injection system, a measurement system and a polarization system. The sample system includes a back electrode and an oil containing insulating ring, wherein the sample is located at the upper portion of the back electrode and is surrounded and blocked by the oil containing insulating ring so as not to overflow, and the back electrode is grounded; the electron injection system includes a high-voltage DC source and a needle point, the needle point is connected with the high-voltage DC source, and the tip of the needle point is positioned at the upper portion the sample; the measurement system includes a potentiometer and a collection module, wherein the potentiometer is connected with the collection module, and the collection module comprises an oscilloscope and a processor; and the polarization system comprises a polarization electrode and a high-voltage DC source, wherein the polarization electrode are two flat electrodes which are respectively and symmetrically arranged on two sides of the sample, the flat electrode on one side is connected with a direct current voltage source, the flat electrode on the other side is grounded, and a horizontal electric field is formed in the sample. The electron dissipation measuring device provided by the invention is simple and easy to implement, and can verify whether the nano particle polarization has a capturing effect on the electron dissipation in the nano modified transformer oil or not.

Description

technical field [0001] The invention relates to the technical field of performance testing of insulating materials, in particular to an electron dissipation measuring device in nano-modified transformer oil. Background technique [0002] Mineral transformer oil is an important part of the oil-paper insulation system of converter transformers, and its insulation performance directly affects the safe operation of converter transformers. The addition of nanoparticles provides a new idea for improving the insulating properties. However, the modification mechanism of nanoparticles to transformer oil has always been an unresolved problem, mainly including the theory of polarized and captured electrons of nanoparticles and the theory of shallow traps. The theory of polarized capture electrons of nanoparticles establishes the electrodynamic model of the influence of Fe3O4 nanoparticles on the development of streamers. Through simulation verification, it is proposed that nanoparticl...

Claims

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Application Information

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IPC IPC(8): G01R29/24G01R29/12G01R31/12G01R31/16
CPCG01R29/12G01R29/24G01R31/1281G01R31/16
Inventor 黄猛吕玉珍李成榕葛扬单秉亮应宇鹏牛铭康韩秋波
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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