Study on Electrification Characteristics of Cellulose Pressboard Modified by Nano-TiO<sub>2</sub> in Oil-flow Environment

LIU Daosheng; WANG Guangkang; NIU Tengxiao

doi:10.13296/j.1001-1609.hva.2024.02.018

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Study on Electrification Characteristics of Cellulose Pressboard Modified by Nano-TiO₂ in Oil-flow Environment

Research & Analysis | 更新时间：2025-04-26

- Study on Electrification Characteristics of Cellulose Pressboard Modified by Nano-TiO₂ in Oil-flow Environment
- High Voltage Apparatus Vol. 60, Issue 2, Pages: 169-177(2024)
- 作者机构：
  
  江西理工大学电气工程学院与自动化学院，江西　赣州　 341000
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China(52167017);Jiangxi Natural Science Foundation of China(20192ACBL20016)
- DOI：10.13296/j.1001-1609.hva.2024.02.018
  CLC：
- Received：09 September 2023，
  
  Revised：03 November 2023，
  
  Published：16 February 2024
- 稿件说明：
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LIU Daosheng, WANG Guangkang, NIU Tengxiao. Study on Electrification Characteristics of Cellulose Pressboard Modified by Nano-TiO₂ in Oil-flow Environment[J]. High voltage apparatus, 2024, 60(2): 169-177.
DOI：

LIU Daosheng, WANG Guangkang, NIU Tengxiao. Study on Electrification Characteristics of Cellulose Pressboard Modified by Nano-TiO₂ in Oil-flow Environment[J]. High voltage apparatus, 2024, 60(2): 169-177. DOI： 10.13296/j.1001-1609.hva.2024.02.018.

摘要

经纳米TiO

改性纤维素纸板可以增强其击穿场强与抗老化性能，是当前电气绝缘领域研究的热点。纸板中添加纳米粒子对于变压器油流带电影响仍不明确；因此，为了揭示纳米

粒子对油流带电影响与抑制机理，需测量与分析纳米改性纸板中的油流带电特性。文中以TiO

改性纸板与未改性矿物油为研究对象，通过旋转圆盘系统测量其摩擦产生的静电电流。根据控制变量法研究了温度、纳米粒子质量分数和流速等因素对带电程度的影响，分析了纳米粒子对于油流带电影响机理；采用有限元分析方法分析了变压器油道仿真模型，对比了不同质量分数下的纳米TiO

改性纸板制作的油道模型内部电场分布情况。研究结果表明：与未改性纸板相比，纤维素基体中添加质量分数为1%的纳米TiO

粒子可以抑制油流带电程度，使得油道内部积累电荷后的电场分布畸变程度最小。研究结果可以为抑制变压器中的油流带电提供新方法。

Abstract

Cellulose pressboard by nano-TiO

modification can enhance its breakdown field strength and anti-aging performance and is presently the research hot spot in the field of electrical insulation. However

it is still unclear how the nanoparticles in the pressboard affect the energization of transformer oil flow. In order to reveal the energization influence and suppression mechanism of nanoparticles in oil flow

it is necessary to measure and analyze the oil flow energization characteristics in the pressboard by nano-TiO

modification. In this paper

the pressboard by nano-TiO

modification and the unmodified mineral oil are taken as the research objects

and the electrostatic current is measured by rotating a disk system. Based on the control variation method

the influence of temperature

nano particle mass fraction and flow rate on the energization degree is studied

and the mechanism of nanoparticles on the energization of oil flow is analyzed. The finite element analysis method is used to analyze the simulation model of the transformer oil duct

and the electric field distribution in the transformer oil duct

which is made with the pressboard by nano-TiO

modification with different contents

is compared. The research results show that

compared with the unmodified pressboard

the addition of 1% nano-TiO

particles in cellulose pressboard can inhibit the energization of oil flow and minimize the electric field distortion after the accumulated energization in the oil duct. The research results in this paper can provide a new method for suppressing the oil flow energ

ization in transformer.

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Study on Electrification Characteristics of Cellulose Pressboard Modified by Nano-TiO2 in Oil-flow Environment

DOI：10.13296/j.1001-1609.hva.2024.02.018

摘要

Abstract

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Keywords

references

Study on Electrification Characteristics of Cellulose Pressboard Modified by Nano-TiO₂ in Oil-flow Environment