Evaporation Erosion During the Relay Contact Breaking Process Based on a Simplified Arc Model
Evaporation erosion of the contacts is one of the fundamental failure mechanisms for relays. In this paper, the evaporation erosion characteristics are investigated for the copper contact pair breaking a resistive direct current (dc) 30 V/10 A circuit in the air. Molten pool simulation of the contac...
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Published in | Plasma science & technology Vol. 18; no. 5; pp. 512 - 519 |
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Main Author | |
Format | Journal Article |
Language | English |
Published |
01.05.2016
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Subjects | |
Online Access | Get full text |
ISSN | 1009-0630 |
DOI | 10.1088/1009-0630/18/5/12 |
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Abstract | Evaporation erosion of the contacts is one of the fundamental failure mechanisms for relays. In this paper, the evaporation erosion characteristics are investigated for the copper contact pair breaking a resistive direct current (dc) 30 V/10 A circuit in the air. Molten pool simulation of the contacts is coupled with the gas dynamics to calculate the evaporation rate. A simplified arc model is constructed to obtain the contact voltage and current variations with time for the prediction of the current density and the heat flux distributions flowing from the arc into the contacts. The evaporation rate and mass variations with time during the breaking process are presented. Experiments are carried out to verify the simulation results. |
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AbstractList | Evaporation erosion of the contacts is one of the fundamental failure mechanisms for relays. In this paper, the evaporation erosion characteristics are investigated for the copper contact pair breaking a resistive direct current (dc) 30 V/10 A circuit in the air. Molten pool simulation of the contacts is coupled with the gas dynamics to calculate the evaporation rate. A simplified arc model is constructed to obtain the contact voltage and current variations with time for the prediction of the current density and the heat flux distributions flowing from the arc into the contacts. The evaporation rate and mass variations with time during the breaking process are presented. Experiments are carried out to verify the simulation results. Evaporation erosion of the contacts is one of the fundamental failure mechanisms for relays. In this paper, the evaporation erosion characteristics are investigated for the copper contact pair breaking a resistive direct current (dc) 30 V/10 A circuit in the air. Molten pool simulation of the contacts is coupled with the gas dynamics to calculate the evaporation rate. A simplified arc model is constructed to obtain the contact voltage and current variations with time for the prediction of the current density and the heat flux distributions flowing from the arc into the contacts. The evaporation rate and mass variations with time during the breaking process are presented. Experiments are carried out to verify the simulation results. |
Author | 崔行磊 周学 翟国富 彭喜元 |
AuthorAffiliation | School of Electrical Engineering and Automation, Harbin Institute of Technology,Harbin 150001, China |
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Cites_doi | 10.1109/TPS.1976.4316943 10.1063/1.3386568 10.1007/BF02657881 10.1088/0022-3727/35/14/313 10.1109/TPS.2012.2205590 10.1109/TPS.2004.827606 10.1063/1.357717 10.1109/HOLM.2009.5284420 10.1088/0022-3727/38/9/R01 10.1063/1.3176983 10.1063/1.3204969 10.1109/TPS.2013.2273832 10.1088/0022-3727/30/14/011 10.1103/RevModPhys.67.85 10.1088/0022-3727/36/6/312 10.1109/27.782247 10.1088/0022-3727/29/5/020 10.1201/9780585139319 10.1088/0022-3727/30/20/019 10.1109/27.476476 10.1109/TPS.2008.927378 10.1088/0022-3727/40/1/R01 10.1109/TPS.2011.2178436 10.1088/0022-3727/30/14/009 10.1016/j.commatsci.2005.03.014 10.1063/1.350358 |
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Notes | Evaporation erosion of the contacts is one of the fundamental failure mechanisms for relays. In this paper, the evaporation erosion characteristics are investigated for the copper contact pair breaking a resistive direct current (dc) 30 V/10 A circuit in the air. Molten pool simulation of the contacts is coupled with the gas dynamics to calculate the evaporation rate. A simplified arc model is constructed to obtain the contact voltage and current variations with time for the prediction of the current density and the heat flux distributions flowing from the arc into the contacts. The evaporation rate and mass variations with time during the breaking process are presented. Experiments are carried out to verify the simulation results. School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China evaporation erosion, material transfer, molten pool, simplified arc model 34-1187/TL ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
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Snippet | Evaporation erosion of the contacts is one of the fundamental failure mechanisms for relays. In this paper, the evaporation erosion characteristics are... |
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SubjectTerms | Arc heating Breaking Contact Direct current Evaporation Evaporation rate Mathematical models Relay 侵蚀特性 断开 气体动力学 电弧模型 电流密度 继电器 蒸发速率 触头 |
Title | Evaporation Erosion During the Relay Contact Breaking Process Based on a Simplified Arc Model |
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