油浸式电气设备防爆技术演变及其与系统短路容量关系分析

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Abstract In order to analyze the ability of large oil-filled equipment to withstand internal large arc fault, the technical development of oil-immersed equipment such as oil switch, oil-immersed current/voltage transformer, oil-paper bushing and oil-immersed power transformer in explosion-proof and fire-proof is reviewed in this paper. There is a trend of using SF₆ or dry-type insulation instead of oil-immersed equipment in less oil equipment. However, similar technical routes cannot be adopted for large power transformers. Therefore, based on the analysis method of ability of large oil-immersed transformer tank withstand internal short-circuit arc fault, the relationship between transformer tank volume and system short-circuit current are analyzed in this paper. It is considered that under the factors of the increase of the short circuit capacity of the system, the basic physical properties of insulating liquid's incompressibility and the limited increase of the volume of tank, the ability of tank withstand internal short-circuit arc fault is exceeded, when the oil-immersed transformer is faced with internal arc short circuit fault. In this paper, it is revealed that the essence of the explosion and fire problem of large oil-immersed transformer is due to the increasing transmission capacity of power grid, and the corresponding increase of the short-circuit capacity/current of the system exceeds the upper limit of the ability of tank withstand internal short-circuit arc fault, which has limited volume.

Key words： oil-immersed electrical equipment explosion-proof ability of tank withstand internal arc fault system short circuit current

Received: 30 July 2025

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	ZHAO Zhigang

Cite this article:

ZHAO Zhigang. Evolution of explosion-proof technology for oil-immersed electrical equipment and its relationship with system short circuit capacity[J]. Electrical Engineering, 2026, 27(2): 53-60.

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https://dqjs.cesmedia.cn/EN/Y2026/V27/I2/53

[1] 钟建英, 陈刚, 谭盛武, 等. 高压开关设备关键技术及发展趋势[J]. 高电压技术, 2021, 47(8): 2769-2782.
[2] 包叙定. 中国电机工业发展史: 百年回顾与展望[M]. 北京: 机械工业出版社, 2011.
[3] 任燕, 桂林. 油断路器火灾分析[J]. 河北能源职业技术学院学报, 2013, 13(3): 76-78.
[4] 侯勇. 如何预防油断路器爆炸事故[J]. 电力安全技术, 2005(5): 41.
[5] 陈锦增, 邱吉辉. 油断路器发生爆炸的原因及预防措施[J]. 农村电气化, 2000(11): 29-30.
[6] 张磊, 田晓军. 怎样预防油断路爆炸[J]. 现代职业安全, 2004(增刊1): 85.
[7] 郭广仁. 我国高压开关行业发展概况[J]. 电气时代, 2002(9): 28-29.
[8] 孙涛. 高压开关设备相关问题综述[J]. 机电信息, 2013(15): 87-88.
[9] 郝成钢. 四平电网步入断路器无油化时代[N]. 东北电力报, 2008-07-26(1).
[10] 戴霞初. 再谈互感器的防爆问题(上)[J]. 变压器, 1988(8): 22-25, 36.
[11] 沈力, 李龙, 王梦云, 等. 2005年度110(66)kV及以上电压等级互感器事故与缺陷统计分析[J]. 电力设备, 2007(1): 11-14.
[12] 陆自强. 油浸式电流互感器多场耦合下电弧故障分析与防爆结构优化设计[D]. 大连: 大连交通大学, 2025.
[13] 周浪, 刘水平, 杨茜, 等. 防爆型油浸式电流互感器研制[J]. 电力电容器与无功补偿, 2025, 46(2): 89-97.
[14] 赵志刚, 徐征宇, 王健一, 等. 大型电力变压器火灾安全研究[J]. 高电压技术, 2015, 41(10): 3378-3384.
[15] Working Group A2.33. Guide for transformer fire safety practices[R]. Paris, France: CIGRE, 2013.
[16] 闫晨光, 郝治国, 张保会, 等. 电力变压器油箱形变破裂建模及仿真[J]. 电工技术学报, 2016, 31(3): 180-187.
[17] 谢永涛, 袁浩, 李同晗, 等. 特高压换流站消防能力提升措施研究[J]. 高压电器, 2020, 56(1): 241-245.
[18] 潘志城, 谢志成, 邓军, 等. 换流变阀侧套管含油升高座穿入阀厅的火灾风险分析及优化措施[J]. 电气技术, 2019, 20(9): 105-113.
[19] Zhao Zhigang.Analysis of transformer tank defor-mation and rupture, part 1: proposal of analysis method[C]//2025 10th Asia Conference on Power and Electrical Engineering (ACPEE), Beijing, China, 2025: 2588-2594.
[20] 陈宗器, 丁伯雄. SF₆气体绝缘变压器综述(上)[J]. 变压器, 1999(7): 33-37.
[21] 蔡定国, 唐金权. 干式变压器用绝缘材料、绝缘结构与系统综述[J]. 绝缘材料, 2019, 52(11): 1-8.
[22] Zhao Zhigang.Analysis of transformer tank defor-mation and rupture, part 2: checking of ability of transformer tank withstand internal short-circuit arc fault[C]//2025 10th Asia Conference on Power and Electrical Engineering (ACPEE), Beijing, China, 2025: 2595-2599.
[23] 徐杰, 李燕. 特高压换流站单相短路电流抑制措施及对电网可靠性的影响分析[J]. 四川电力技术, 2018, 41(4): 69-72.
[24] 唐金锐, 杨凡奇, 侯婷婷, 等. 特高压交流变电站母线短路电流的影响因素分析[J]. 中国电力, 2019, 52(4): 66-73.
[25] 刘振亚. 特高压交直流电网[M]. 北京: 中国电力出版社, 2013.
[26] 曾庆禹. 1000kV 特高压输电系统输电能力研究[J]. 电网技术, 2012, 36(2): 1-6.