Mechanics Analysis and Technical Requirements of Welding T-joint on GIS’s Branch Bus

LIU Jian-jun; BIAN Chao; ZHANG Jian-guo; CHEN Da-bing

doi:10.13296/j.1001-1609.hva.2012.07.003

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Mechanics Analysis and Technical Requirements of Welding T-joint on GIS’s Branch Bus

更新时间：2025-04-26

- Mechanics Analysis and Technical Requirements of Welding T-joint on GIS’s Branch Bus
- High VoltageApparatus Vol. 48, Issue 7, Pages: 109-113(2012)
- 作者机构：
  
  江苏省电力公司电力科学研究院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2012.07.003
  CLC： TG407
- Published：2012
- 稿件说明：
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[1]刘建军,卞超,张建国,陈大兵.GIS分支母线骑坐式焊接接头结构分析及应满足的技术要求[J].高压电器,2012,48(07):109-113.

LIU Jian-jun, BIAN Chao, ZHANG Jian-guo, et al. Mechanics Analysis and Technical Requirements of Welding T-joint on GIS’s Branch Bus[J]. High VoltageApparatus, 2012, 48(7): 109-113.
[1]刘建军,卞超,张建国,陈大兵.GIS分支母线骑坐式焊接接头结构分析及应满足的技术要求[J].高压电器,2012,48(07):109-113. DOI： 10.13296/j.1001-1609.hva.2012.07.003.

LIU Jian-jun, BIAN Chao, ZHANG Jian-guo, et al. Mechanics Analysis and Technical Requirements of Welding T-joint on GIS’s Branch Bus[J]. High VoltageApparatus, 2012, 48(7): 109-113. DOI： 10.13296/j.1001-1609.hva.2012.07.003.

摘要

结合一例GIS主母线与分支母线焊接接头断裂故障案例

通过受力状况分析

对焊接接头在短路电动力作用时的结构强度进行了力学校核

并通过设计的模型对焊接接头部位的强度性能进行了验证。笔者从材料力学和焊接结构两方面对骑坐式角焊缝结构的安全性与科学性进行了分析

指出采用焊接方式连接GIS母线与分支母线时应采用开单边坡口的结构

在结构设计时必须明确焊接件相贯线的加工和装配精度

并校核电动力的冲击载荷

设计的焊接工艺应进行评定试验验证。

Abstract

The mechanic property of main bus and branch bus’s welding T-joint in GIS equipment is analyzed based on a case of welding joint fracture.A model is designed to validate the welding joint’s intensity under the effect of short circuit electrodynamic force.The security and rationality of welding T-joint is analyzed from metal material mechanical property and welding structure.Single groove is needful in the structure design and processing of T-jointing main bus and branch bus using welding in GIS

machining precision and assembly accuracy of line of intersection should be defined and shock load of short circuit electrodynamic force should be checked.The qualification of welding procedure is a requirement rule for main bus and branch bus’s welding T-joint in GIS.

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