Study on the Designing of Transformer Bushing with Oil-separated Structure and Its Verifying

LUO Yu; WANG Han; WU Xixiu; FENG Yu; DU Yan; MENG Peipei

doi:null

您当前的位置：

首页 >

文章列表页 >

Study on the Designing of Transformer Bushing with Oil-separated Structure and Its Verifying

更新时间：2025-06-18

- Study on the Designing of Transformer Bushing with Oil-separated Structure and Its Verifying
- High Voltage Apparatus Pages: 1-8(2025)
- 作者机构：
  
  1.武汉理工大学自动化学院，武汉　 430070
  2.中国电力科学研究院有限公司，武汉　 430074
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：
- 稿件说明：
移动端阅览
LUO Yu, WANG Han, WU Xixiu, et al. Study on the Designing of Transformer Bushing with Oil-separated Structure and Its Verifying[J/OL]. High voltage apparatus, 2025, 1-8.
DOI：

LUO Yu, WANG Han, WU Xixiu, et al. Study on the Designing of Transformer Bushing with Oil-separated Structure and Its Verifying[J/OL]. High voltage apparatus, 2025, 1-8. DOI：

摘要

针对变压器套管故障后检修周期长、成本高问题，提出一种油路隔离型插拔式套管设计，该套管通过底座结构将套管油中部分和变压器油箱分开，使底座内腔与变压器油箱内腔形成两个独立的空腔，从而使变压器套管实现可插拔，大大简化了检修过程。电容心子的绝缘水平是套管重要性能指标，为此论文专门讨论了如何进行插拔式套管胶浸纸电容心子的改进设计，并制造了样机。为验证底座结构和电容心子设计的正确性，文中开展了仿真和试验验证研究。其中，仿真验证是建立套管整体的三维电—磁—热耦合模型分析工频条件下的温升和电场分布情况，重点讨论了焦耳热、涡损和介损对温升影响。仿真结果表明：配合升高座改进设计的电容心子最大场强约为2.29 kV/mm，具有足够的安全裕度和良好的改善电场分布能力；工频条件下套管最高温度出现在底座插拔头附近，为97.215 ℃，符合套管设计要求。分别开展了工频耐压试验和温升试验，工频耐压试验结果表明设计的样机绝缘水平足够，温升试验结果表明与仿真结果误差小。仿真与试验均表明设计具有较好的绝缘性能和载流能力。

Abstract

For the problem of long maintenance cycle and high cost after transformer bushing failure

an oil separated plug-in bushing design is proposed

which separates the bushing oil-in part from the transformer tank through the base structure

so that the inner cavity of the base and the inner cavity of the transformer tank form two independent cavities

thus making the transformer bushing pluggable and greatly simplifying the maintenance process. The insulation level of the capacitor core is an important performance indicator of the bushing. For this reason

the paper specifically discusses how to carry out the improved design of the pluggable bushing rubber-impregnated paper capacitor core

and manufactures a prototype. To verify the correctness of the base structure and capacitor core design

simulation and experimental validation studies were carried out. Among them

the simulation verification is to establish a three-dimensional electric-magnetic-thermal coupling model of the entire bushing to analyze the temperature rise and electric field distribution under the working frequency conditions

focusing on the effects of Joule heat

eddy loss and dielectric loss on the temperature rise. Simulation results show that: the maximum field strength of the capacitor core is about 2.29 kV/mm

which has enough safety margin and good ability to improve the electric field distribution; the highest temperature of the bushing under the working frequency condition appears near the plugging head of the base

which is 97.215 ℃

which meets the bushing design requirements. The test results show that the insulation level of the prototype design is enough

and the temperature rise test results show that the error is small compared with the simulation results. Both simulation and test show that the design has good insulation performance and current carrying capacity.

关键词

Keywords

references

夏军 , 张璧辉 , 杨知非 , 等 . 电力谐波对变压器套管电容心子介质损耗的影响研究 [J ] . 电瓷避雷器 , 2020 ( 1 ): 222 - 227 .

XIA Jun , ZHANG Bihui , YANG Zhifei , et al . Study on the influence of power harmonic on the dielectric loss of transformer capacitive bushings [J ] . Insulators and Surge Arresters , 2020 ( 1 ): 222 - 227 .

周秀 , 吴旭涛 , 刘威峰 , 等 . 一起220 kV主变压器套管缺陷诊断分析 [J ] . 电瓷避雷器 , 2021 ( 2 ): 85 - 89 .

ZHOU Xiu , WU Xutao , LIU Weifeng , et al . Diagnosis and analysis on a 220 kV main transformer bushing defect [J ] . Insulators and Surge Arresters , 2021 ( 2 ): 85 - 89 .

黄哲恒 , 梅红伟 , 高超 , 等 . 变压器套管电场强垂直分量对操作冲击放电特性的影响 [J ] . 高电压技术 , 2021 , 47 ( 8 ): 2838 - 2845 .

HUANG Zheheng , MEI Hongwei , GAO Chao , et al . Effect of strong vertical components of electric field in transformer bushing on switching impulse discharge characteristics [J ] . High Voltage Engineering , 2021 , 47 ( 8 ): 2838 - 2845 .

王振华 , 郑久江 , 陈星 , 等 . 10 kV卷铁心配电变压器短路强度浅析 [J ] . 变压器 , 2021 , 58 ( 11 ): 44 - 46 .

WANG Zhenhua , ZHENG Jiujiang , CHEN Xing , et al . Analysis of Short-Circuit strength of 10 kV coiling core distribution transformer [J ] . Transformer , 2021 , 58 ( 11 ): 44 - 46 .

简政 , 郝建 , 刘清松 , 等 . 典型缺陷油纸绝缘套管的高压频域介电和局部放电特性差异 [J ] . 高电压技术 , 2022 , 48 ( 10 ): 4113 - 4123 .

JIAN Zheng , HAO Jian , LIU Qingsong , et al . Differences in high voltage frequency domain dielectric and partial discharge characteristics of typical defective oil-paper insulated bushings [J ] . High Voltage Engineering , 2022 , 48 ( 10 ): 4113 - 4123 .

徐鹏 , 曹雅榕 , 陈弘扬 , 等 . 油纸电容型套管常见缺陷及对策 [J ] . 电瓷避雷器 , 2021 ( 4 ): 209 - 214 .

XU Peng , CAO Yarong , CHEN Hongyang , et al . Common defects of oil-paper capacitive bushing and countermeasures [J ] . Insulators and Surge Arresters , 2021 ( 4 ): 209 - 214 .

张璐 , 孙蕾 , 韩彦华 , 等 . 不同缺陷下油纸绝缘套管中氢气生成特性研究 [J ] . 电网与清洁能源 , 2021 , 37 ( 7 ): 44 - 50 .

ZHANG Lu , SUN Lei , HAN Yanhua , et al . Hydrogen generation characteristics of the oil paper insulated bushing with different inside defects [J ] . Advances of Power System & Hydroelectric Engineering , 2021 , 37 ( 7 ): 44 - 50 .

赵军 , 李文峰 , 邢超 , 等 . 变压器套管安装缺陷及防范措施 [J ] . 变压器 , 2016 , 53 ( 4 ): 69 - 73 .

ZHAO Jun , LI Wenfeng , XING Chao , et al . Transformer bushing installation defects and preventive measures [J ] . Transformer , 2016 , 53 ( 4 ): 69 - 73 .

谢晨 , 潘文霞 , 孙凯 , 等 . 基于多物理场的预置式(插拔式)海底电缆终端电场优化研究 [J ] . 高压电器 , 2020 , 56 ( 1 ): 135 - 140 .

XIE Chen , PAN Wenxia , SUN Kai , et al . Research on optimization of the electric field of the pre-set (plug-and-pull) submarine cable based on multi-physical field [J ] . High Voltage Apparatus , 2020 , 56 ( 1 ): 135 - 140 .

樊友平 , 武利会 , 康李一 , 等 . 110 kV XLPE电缆GIS内锥插拔式快速中间接头的设计 [J ] . 高电压技术 , 2016 , 42 ( 2 ): 485 - 495 .

FAN Youping , WU Lihui , KANG Liyi , et al . Design of inner cone pluggable intermediate quick joint for 110 kV XLPE cables based on GIS [J ] . High Voltage Engineering , 2016 , 42 ( 2 ): 485 - 495 .

许鹏飞 , 杨帆 , 刘刚 , 等 . 110 kV插拔式GIS电缆终端轴向传热分析 [J ] . 电力工程技术 , 2020 , 39 ( 5 ): 30 - 35 .

XU Pengfei , YANG Fan , LIU Gang , et al . Assessment on axial heat transfer of 110 kV plug-in GIS cable terminal [J ] . Electric Power Engineering Technology , 2020 , 39 ( 5 ): 30 - 35 .

王青于 , 靳守锋 , 袁书文 , 等 . 特高压环氧浸纸-SF 6 气体复合绝缘穿墙套管界面电荷积累过程和直流电场分布特性仿真 [J ] . 高电压技术 , 2022 , 48 ( 10 ): 4102 - 4112 .

WANG Qingyu , JIN Shoufeng , YUAN Shuwen , et al . Simulation of charge accumulation process and DC electric field distribution characteristics at the interface of EHV epoxy-impregnated paper-SF 6 gas composite insulated wall-piercing bushings [J ] . High Voltage Engineering , 2022 , 48 ( 10 ): 4102 - 4112 .

张施令 , 彭宗仁 . 换流变压器套管的电气绝缘结构研究与设计优化 [J ] . 绝缘材料 , 2020 , 53 ( 12 ): 65 - 72 .

ZHANG Shiling , PENG Zongren . Study on electrical insulation structure of converter transformer bushing and design optimization [J ] . Insulating Materials , 2020 , 53 ( 12 ): 65 - 72 .

张施令 , 彭宗仁 . 有限元数值计算技术应用于特高压穿墙套管三维电场模拟分析 [J ] . 高电压技术 , 2020 , 46 ( 3 ): 782 - 789 .

ZHANG Shiling , PENG Zongren . Application of finite element method in three-dimensional electric field simulation of UHVDC wall bushing [J ] . High Voltage Engineering , 2020 , 46 ( 3 ): 782 - 789 .

李乃一 , 彭宗仁 , 刘鹏 . 1 100 kV直流SF 6 气体绝缘穿墙套管电场仿真分析 [J ] . 高电压技术 , 2020 , 46 ( 1 ): 205 - 214 .

LI Naiyi , PENG Zongren , LIU Peng . Electric field simulation and analysis of 1 100 kV DC SF 6 gas-insulated wall bushing [J ] . High Voltage Engineering , 2020 , 46 ( 1 ): 205 - 214 .

谭黎军 , 俞英中 , 曹燕明 , 等 . 基于有限元法的绝缘装置介电强度校核 [J ] . 变压器 , 2019 , 56 ( 10 ): 15 - 19 .

TAN Lijun , YU Yingzhong , CAO Yanming , et al . Dielectric strength validation for insulation device based on FEM [J ] . Transformer , 2019 , 56 ( 10 ): 15 - 19 .

JYOTHI N S , RAMU T S , MANDLIK M . Temperature distribution in resin impregnated paper insulation for transformer bushings [J ] . IEEE Transactions on Dielectrics and Electrical Insulation , 2010 , 17 ( 3 ): 931 - 938 .

付启明 , 易鹭 , 曲德宇 , 等 . 穿墙套管固定法兰涡流损耗分析及优化研究 [J ] . 电瓷避雷器 , 2020 ( 1 ): 204 - 208 .

FU Qiming , YI Lu , QU Deyu , et al . Eddy current loss analysis and optimization research of wall casing flange [J ] . Insulators and Surge Arresters , 2020 ( 1 ): 204 - 208 .

张寒 , 万保权 , 许佐明 , 等 . 环氧胶浸纸套管绝缘特性的温度敏感性研究 [J ] . 电瓷避雷器 , 2021 ( 2 ): 72 - 77 .

ZHANG Han , WAN Baoquan , XU Zuoming , et al . Temperature sensitivity of insulation characteristics of epoxy resin impregnated paper bushing [J ] . Insulators and Surge Arresters , 2021 ( 2 ): 72 - 77 .

张寒 , 万保权 , 胡伟 , 等 . 热效应对胶浸纸套管绝缘性能的影响及温度反演方法 [J ] . 高电压技术 , 2022 , 48 ( 10 ): 4124 - 4132 .

ZHANG Han , WAN Baoquan , HU Wei , et al . Effect of thermal effect on insulation performance of glued-in paper sleeves and temperature inversion method [J ] . High Voltage Engineering , 2022 , 48 ( 10 ): 4124 - 4132 .

谢志成 , 许佐明 , 刘泰蔚 , 等 . 典型缺陷条件下环氧胶浸纸套管绝缘特性分析 [J ] . 南方电网技术 , 2021 , 15 ( 12 ): 66 - 71 .

XIE Zhicheng , XU Zuoming , LIU Taiwei , et al . Insulation characteristics analysis of epoxy resin impregnated paper bushing with typical defects [J ] . Southern Power System Technology , 2021 , 15 ( 12 ): 66 - 71 .

刘道生 , 陈星蓉 , 赵子明 . 基于等裕度的60 kV油纸套管纵绝缘优化 [J ] . 绝缘材料 , 2020 , 53 ( 10 ): 62 - 68 .

LIU Daosheng , CHEN Xingrong , ZHAO Ziming . Longitudinal insulation optimization of 60 kV oil-paper bushing based on equal margin design method [J ] . Insulating Materials , 2020 , 53 ( 10 ): 62 - 68 .

邓军 , 王青于 , 彭宗仁 , 等 . 基于不同心体设计方法的±800 kV对接式直流穿墙套管电场分布规律研究 [J ] . 高压电器 , 2018 , 54 ( 10 ): 8 - 14 .

DENG Jun , WANG Qingyu , PENG Zongren , et al . Study on electric field distribution of ±800 kV butt joint type DC wall bushings based on different core design methods [J ] . High Voltage Apparatus , 2018 , 54 ( 10 ): 8 - 14 .

邓江 . 干式SF 6 气体绝缘特高压直流套管的电热场分布特性及内绝缘结构优化设计研究 [D ] . 成都 : 西南交通大学 , 2020 .

DENG Jiang . Study on distribution characteristics of electric and heat field and optimal design of inner insulation structure of dry SF 6 gas-insulated UHV DC bushing [D ] . Chengdu : Southwest Jiaotong University , 2020 .

ZHANG Yujiao , RUAN Jiangjun , HUANG Tao , et al . Calculation of temperature rise in air-cooled induction motors through 3-D coupled electromagnetic fluid-dynamical and thermal finite-element analysis [J ] . IEEE Transactions on Magnetics , 2012 , 48 ( 2 ): 1047 - 1050 .

ETEIBA M B , AZIZ M M A , SHAZLY J H . Heat conduction problems in SF 6 gas cooled-insulated power transformers solved by the finite-element method [J ] . IEEE Transactions on Power Delivery , 2008 , 23 ( 3 ): 1457 - 1463 .

ROSILLO M E , HERRERA C A , JARAMILLO G . Advanced thermal modeling and experimental performance of oil distribution transformers [J ] . IEEE Transactions on Power Delivery , 2012 , 27 ( 4 ): 1710 - 1717 .

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Study on Design and Verification of Bushing for Oil-circuit-isolation Type Transformer

Seismic Test and Stiffness Analysis on Mechanical Clamped Type Bushing for 500 kV Transformer

Development and Design of 363 kV GIS with High Parameter

Study on ±500 kV Voltage and Current Transducer for HVDC Transmission

Development of 550 kV/50 kA Single-break Circuit Breaker

Related Author

MA Qingyue

XUE Zhihang

ZHANG Zhengnan

XIE Qiang

GAO Zhenkui

LI Jianzheng

CUI Junyang

CHEN Lei

Related Institution

State Grid Sichuan Electric Power Research Institute

College of Civil Engineering, Tongji University

Henan Pingzhi High Voltage Switchgear Co, Ltd

Xi’an Xidian High Voltage Apparatus Co. Ltd.

Xi’an High Voltage Apparatus Research Institute

⁰