Jifei Ye , Hua Li , Zhiquan Song , Zhenhan Li , Peng Fu
{"title":"100ka高温断路器隔离触头动态特性仿真与实验研究","authors":"Jifei Ye , Hua Li , Zhiquan Song , Zhenhan Li , Peng Fu","doi":"10.1016/j.fusengdes.2025.115462","DOIUrl":null,"url":null,"abstract":"<div><div>The isolated contact of pyrobreaker is used to disconnect the electrical connection immediately upon pyrobreaker current contact opening and establish long-term insulation capability. The performance of isolated contact can directly affect the safety and reliability of the quench protection system. A combined research approach based on multi-physics simulation and experimental methods is proposed to study the explosive fracture process of the isolated contact in pyrobreaker. The dynamic propagation of the explosive shock wave is simulated using the Arbitrary Lagrangian-Eulerian (ALE) algorithm combined with fluid-solid coupling, allowing for a detailed analysis of the pressure distribution on the isolated contact under shock loading and the time-dependent response of their fracture velocity. To validate the numerical model, a shock wave-driven explosion experiment was designed and conducted. Then the high-speed camera was used to capture the displacement of insulation cylinder for cutting contact. The experimental results exhibited a high degree of consistency with the numerical simulation, and demonstrates that the design method of pyrobreaker is effective and reliable.</div></div>","PeriodicalId":55133,"journal":{"name":"Fusion Engineering and Design","volume":"222 ","pages":"Article 115462"},"PeriodicalIF":2.0000,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Simulation and experimental study on dynamic characteristics of isolated contact for 100 kA pyrobreaker\",\"authors\":\"Jifei Ye , Hua Li , Zhiquan Song , Zhenhan Li , Peng Fu\",\"doi\":\"10.1016/j.fusengdes.2025.115462\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The isolated contact of pyrobreaker is used to disconnect the electrical connection immediately upon pyrobreaker current contact opening and establish long-term insulation capability. The performance of isolated contact can directly affect the safety and reliability of the quench protection system. A combined research approach based on multi-physics simulation and experimental methods is proposed to study the explosive fracture process of the isolated contact in pyrobreaker. The dynamic propagation of the explosive shock wave is simulated using the Arbitrary Lagrangian-Eulerian (ALE) algorithm combined with fluid-solid coupling, allowing for a detailed analysis of the pressure distribution on the isolated contact under shock loading and the time-dependent response of their fracture velocity. To validate the numerical model, a shock wave-driven explosion experiment was designed and conducted. Then the high-speed camera was used to capture the displacement of insulation cylinder for cutting contact. The experimental results exhibited a high degree of consistency with the numerical simulation, and demonstrates that the design method of pyrobreaker is effective and reliable.</div></div>\",\"PeriodicalId\":55133,\"journal\":{\"name\":\"Fusion Engineering and Design\",\"volume\":\"222 \",\"pages\":\"Article 115462\"},\"PeriodicalIF\":2.0000,\"publicationDate\":\"2025-09-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Fusion Engineering and Design\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0920379625006581\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"NUCLEAR SCIENCE & TECHNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Fusion Engineering and Design","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0920379625006581","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"NUCLEAR SCIENCE & TECHNOLOGY","Score":null,"Total":0}
Simulation and experimental study on dynamic characteristics of isolated contact for 100 kA pyrobreaker
The isolated contact of pyrobreaker is used to disconnect the electrical connection immediately upon pyrobreaker current contact opening and establish long-term insulation capability. The performance of isolated contact can directly affect the safety and reliability of the quench protection system. A combined research approach based on multi-physics simulation and experimental methods is proposed to study the explosive fracture process of the isolated contact in pyrobreaker. The dynamic propagation of the explosive shock wave is simulated using the Arbitrary Lagrangian-Eulerian (ALE) algorithm combined with fluid-solid coupling, allowing for a detailed analysis of the pressure distribution on the isolated contact under shock loading and the time-dependent response of their fracture velocity. To validate the numerical model, a shock wave-driven explosion experiment was designed and conducted. Then the high-speed camera was used to capture the displacement of insulation cylinder for cutting contact. The experimental results exhibited a high degree of consistency with the numerical simulation, and demonstrates that the design method of pyrobreaker is effective and reliable.
期刊介绍:
The journal accepts papers about experiments (both plasma and technology), theory, models, methods, and designs in areas relating to technology, engineering, and applied science aspects of magnetic and inertial fusion energy. Specific areas of interest include: MFE and IFE design studies for experiments and reactors; fusion nuclear technologies and materials, including blankets and shields; analysis of reactor plasmas; plasma heating, fuelling, and vacuum systems; drivers, targets, and special technologies for IFE, controls and diagnostics; fuel cycle analysis and tritium reprocessing and handling; operations and remote maintenance of reactors; safety, decommissioning, and waste management; economic and environmental analysis of components and systems.