Research and Mechanism Analysis of Electrically Induced Combustion Test Caused by Insulation Faults of Cable for Full-size High-voltage Switchgear Cabinet
Research & Analysis|更新时间:2025-04-26
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Research and Mechanism Analysis of Electrically Induced Combustion Test Caused by Insulation Faults of Cable for Full-size High-voltage Switchgear Cabinet
High Voltage ApparatusVol. 60, Issue 3, Pages: 42-49(2024)
作者机构:
1.国网安徽省电力有限公司电力科学研究院,合肥 230601
2.电力火灾与安全防护安徽省重点实验室,合肥 230022
3.国家电网公司输变电设施火灾防护实验室,合肥 230022
4.国网安徽省电力有限公司,合肥 230061
5.华北电力大学新能源电力系统国家重点实验室,北京 102206
作者简介:
基金信息:
Science and Technology Project of State Grid Anhui Electric Corporation of China(B3120520000D);Anhui Natural Science Foundation(2008085UD13)
ZHANG Jiaqing, CHEN Qingtao, KE Yanguo, et al. Research and Mechanism Analysis of Electrically Induced Combustion Test Caused by Insulation Faults of Cable for Full-size High-voltage Switchgear Cabinet[J]. High voltage apparatus, 2024, 60(3): 42-49.
DOI:
ZHANG Jiaqing, CHEN Qingtao, KE Yanguo, et al. Research and Mechanism Analysis of Electrically Induced Combustion Test Caused by Insulation Faults of Cable for Full-size High-voltage Switchgear Cabinet[J]. High voltage apparatus, 2024, 60(3): 42-49. DOI: 10.13296/j.1001-1609.hva.2024.03.006.
Research and Mechanism Analysis of Electrically Induced Combustion Test Caused by Insulation Faults of Cable for Full-size High-voltage Switchgear Cabinet
the researchers are lack of understanding the spatiotemporal evolution of the fire development in switchgear cabinet due to the enclosed characteristic of the switchgear cabinet. There is a dispute about weather the cable discharge can ignite and how to combust and targeted prevention measures are lack of basis. It is difficult to carry out full-scale test due to large difficulty in the combustion test. In this paper
the fire process caused by short-circuit of single-phase grounding cable of HV switchgear cabinet is studied. A full-scale test platform is set up to study and master the temperature distribution inside and outside the switchgear cabinet as well as the cable sheath in the short circuit fire process. The research of multi-physics field simulation is performed
the ignition model of the switchgear cabinet is constructed and the fire spreading is mastered. Based on the simulation and test results
the cable material decomposition process and the influence of material decomposition on the combustion are analyzed. Through the research mentioned above
the combustion mechanism of insulation fault of cable for HV switchgear cabinet is mastered. The cable sheath temperature can well reflect the internal fault temperature of the switchgear cabinet
which lays a foundation for the fire prevention of the switchgear cabinet.