Study on Pseudo-static Test of Seismic Reinforcement Method of Mechanical Clamped Type Bushing for 500 kV Transformer

MA Qingyue; XUE Zhihang; ZHANG Zhengnan; XIE Qiang

doi:10.13296/j.1001-1609.hva.2025.04.015

您当前的位置：

首页 >

文章列表页 >

Study on Pseudo-static Test of Seismic Reinforcement Method of Mechanical Clamped Type Bushing for 500 kV Transformer

Earthquake Disaster Mitigation and Emergency Responses of Substation System Under Extreme Conditions | 更新时间：2025-05-25

- Study on Pseudo-static Test of Seismic Reinforcement Method of Mechanical Clamped Type Bushing for 500 kV Transformer
- High Voltage Apparatus Vol. 61, Issue 4, Pages: 130-138(2025)
- 作者机构：
  
  1.同济大学土木工程学院，上海　 200092
  2.国网四川省电力公司电力科学研究院，成都　 610041
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China(51878508)
- DOI：10.13296/j.1001-1609.hva.2025.04.015
  CLC：
- Received：22 November 2024，
  
  Revised：16 January 2025，
  
  Published：16 April 2025
- 稿件说明：
移动端阅览
MA Qingyue, XUE Zhihang, ZHANG Zhengnan, et al. Study on Pseudo-static Test of Seismic Reinforcement Method of Mechanical Clamped Type Bushing for 500 kV Transformer[J]. High voltage apparatus, 2025, 61(4): 130-138.
DOI：

MA Qingyue, XUE Zhihang, ZHANG Zhengnan, et al. Study on Pseudo-static Test of Seismic Reinforcement Method of Mechanical Clamped Type Bushing for 500 kV Transformer[J]. High voltage apparatus, 2025, 61(4): 130-138. DOI： 10.13296/j.1001-1609.hva.2025.04.015.

摘要

震害调查表明500 kV变压器卡扣式套管的地震易损性较高，为了提高其抗震性能，文中针对500 kV卡扣式套管提出了抗震加固方案，并且对未加固以及不同加固方法的卡扣式套管进行了反复加载作用下的试验研究，对比了不同加固方法下套管的破坏形式以及对抗震性能改善的结果。结果表明：在强震作用下，卡扣式套管的弹簧卡扣对瓷质套管的约束不足，未加固情况下易发生漏油破坏。法兰空腔内注环氧树脂可以有效提升卡扣式套管的抗震性能。加固后，卡扣式套管法兰节点整体性显著提升，各部件间整体协同变形。文中提出的卡扣式套管抗震加固方法可有效提高卡扣式套管的抗震性能。

Abstract

The seismic disaster surveys show that the seismic vulnerability of mechanical clamped type bushing in 500 kV transformer is high. For improving its seismic performance

a seismic reinforcement method for the 500 kV mechanical clamped type bushing is proposed in this paper. The mechanical clamped type bushings without reinforcement and with different reinforcement methods are tested and studied under repeated loading. The damage forms and the result in improving the seismic performance are compared under various reinforcement methods. The results show that under strong seismic action

the constraints of the spring clamps on the porcelain bushing are insufficient

leading to oil leakage in the absence of reinforcement. Injection of epoxy resin into the flange cavity can effectively improve the seismic performance of the clamped type bushing. After the reinforcement

the integrity of the flange joint of the clamped type bushing is improved significantly

with coordinated deformation between components. The seismic reinforcement method of the mechanical clamped type bushing proposed in this paper can effectively enhance its seismic performance.

关键词

Keywords

references

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Seismic Reinforcement Method and Its Economic Effect Analysis of Large Transformer

Related Author

QING Dongsheng

CHEN Xing

LI Xiaoxuan

XIE Qiang

Related Institution

Guangdong Tianguang Energy Technology Development Co.,Ltd.

Key Laboratory of Performance Evolution and Control for Engineering Structures of Ministry of Education,Tongji University

⁰