80 kA短路故障下特高压GIS内部燃弧效应评估与结构失效风险分析

高浩予; 冯英; 崔博源; 张鹏飞; 吴昱怡; 黄河; 王浩然

doi:10.13296/j.1001-1609.hva.2026.06.004

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80 kA短路故障下特高压GIS内部燃弧效应评估与结构失效风险分析

研究与分析 | 更新时间：2026-06-10

- 80 kA短路故障下特高压GIS内部燃弧效应评估与结构失效风险分析
- Assessment of Internal Arcing Effects and Structural Failure Risk Analysis of UHV GIS Under 80 kA Short-circuit Fault
- 高压电器 2026年62卷第6期页码：32-38
- 作者机构：
  
  中国电力科学研究院有限公司，北京 100192
- 作者简介：
  
  高浩予（1997—），男，工学博士，工程师，主要研究方向为GIS/GIL设备故障演变机理（E-mail：hygaoeee@163.com）。
  冯英（1983—），男，工学博士，教授级高级工程师，主要研究方向为高压开关设计、故障诊断、运行管理及试验技术（通信作者)（E⁃mail：fengying@epri.sgcc.com.cn）。
- 基金信息：
  
  国家电网有限公司技术研究服务项目;Technology Service Project of SGCC(SGZB0000TGJS2500985)
- DOI：10.13296/j.1001-1609.hva.2026.06.004
  中图分类号：
- 收稿：2025-12-12，
  
  修回：2026-02-20，
  
  纸质出版：2026-06-16
- 稿件说明：
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高浩予, 冯英, 崔博源, 等. 80 kA短路故障下特高压GIS内部燃弧效应评估与结构失效风险分析[J]. 高压电器, 2026,62(6):32-38.

GAO Haoyu, FENG Ying, CUI Boyuan, et al. Assessment of Internal Arcing Effects and Structural Failure Risk Analysis of UHV GIS Under 80 kA Short-circuit Fault[J]. High Voltage Apparatus, 2026, 62(6): 32-38.
高浩予, 冯英, 崔博源, 等. 80 kA短路故障下特高压GIS内部燃弧效应评估与结构失效风险分析[J]. 高压电器, 2026,62(6):32-38. DOI： 10.13296/j.1001-1609.hva.2026.06.004.

GAO Haoyu, FENG Ying, CUI Boyuan, et al. Assessment of Internal Arcing Effects and Structural Failure Risk Analysis of UHV GIS Under 80 kA Short-circuit Fault[J]. High Voltage Apparatus, 2026, 62(6): 32-38. DOI： 10.13296/j.1001-1609.hva.2026.06.004.

摘要

随着电网负荷及站点关联程度提高，短路电流水平随之增大，推动1 100 kV/63 kA GIS在现有设备基础上向1 100 kV/80 kA发展，对壳体耐电弧烧蚀性能也提出了更高的要求。目前，该指标主要通过内部故障电弧试验考核，然而，受限于特高压GIS试验难度，大多采用数值计算方式进行评估，但数值计算较难反映热—力耦合效应的共同作用。此外，受限于数值计算评估方式，极端故障下特高压GIS设备燃弧效应演化与结构失效风险尚不清晰。针对此，文中基于Mayr-Schwarz电弧模型，提出了考虑热—力效应的GIS燃弧效应评估方法，且对评估可靠性进行了验证。与试验结果相比，评估误差率小于1%，表明所提出评估方法及经验参数选取具备较高可靠性。进一步，基于所提出方法，对80 kA短路故障下1 100 kV/63 kA GIS母线气室内部燃弧效应开展了分析。评估表明，80 kA短路电流持续0.3 s时刻，气室气压最高可达2.71 MPa，超过该母线气室壳体最大压力允许值1.95 MPa，壳体将由焊缝处开裂，建议开展壳体厚度、内径优化，增设压力释放装置等措施。相关研究可为不同电压等级三相分箱结构GIS壳体抗燃弧性能优化必要理论基础。

Abstract

As the grid load and the degree of interconnection between substations increase

the short circuit current level rises accordingly

driving the development of 1 100 kV/63 kA GIS toward 1 100 kV/80 kA based on existing equipment

which places higher demand on the arc ablation resistance performance of the enclosure. Currently

this performance is mainly evaluated through internal fault arc tests. However

due to the difficulty of conducting tests on UHV GIS

most assessments are performed by using numercial calculations. Nevertheless

numerical methods struggle to capture the combined effects of thermal-mechanical coupling. Furthermore

due to the limitations of numercial assessment methods

the evolution of arcing effects and the risk of structural failure in UHV GIS equipment under extreme fault conditions remain unclear. To address the issue

in this paper the GIS arcing effect assessment method considering thermal-mechanical effect is proposed on the basis of Mayr-Schwarz arc model and the assessment reliability is verified. Compared with the test result

the assessment error rate is less than 1%

indicating that the proposed assessment method and the selection of empirical parameters possess high reliability. Furthermore

based on the proposed method

the internal arcing effects of 1100 kV/63 kA GIS busbar compartment at 80 kA short circuit fault is analyzed. The assessment result shows that in case of 80 kA short circuit current for 0.3 s

the maximum pressure in the gas compartment can be up to 2.71 MPa

exceeding the enclosure maximum allowable pressure of 1.95 MPa of the busbar compartment enclosure

and the enclosure will be cracked from the weld seam. Such measures as optimization of thickness and internal diameter of enclosure as well as addition of pressure relief device are suggested. The relevant work can provide a necessary theoretical basis of arcing resistance performance of three phase independent encapsulated GIS at different voltage levels.

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