NDLI: Research on burnout fault of moulded case circuit breaker based on finite element simulation

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Research on burnout fault of moulded case circuit breaker based on finite element simulation

Content Provider	Scilit
Author	Xue, Yang Chang, Shuai Zhang, Penghe Xu, Yinghui Peng, Chuning Shi, Erwei
Copyright Year	2017
Description	Journal: Iop Conference Series: Materials Science and Engineering In the failure event of molded case circuit breaker, overheating of the molded case near the wiring terminal has a very important proportion. The burnout fault has become an important factor restricting the development of molded case circuit breaker. This paper uses the finite element simulation software to establish the model of molded case circuit breaker by coupling multi-physics field. This model can simulate the operation and study the law of the temperature distribution. The simulation results show that the temperature near the wiring terminal, especially the incoming side of the live wire, of the molded case circuit breaker is much higher than that of the other areas. The steady-state and transient simulation results show that the temperature at the wiring terminals is abnormally increased by increasing the contact resistance of the wiring terminals. This is consistent with the frequent occurrence of burnout of the molded case in this area. Therefore, this paper holds that the burnout failure of the molded case circuit breaker is mainly caused by the abnormal increase of the contact resistance of the wiring terminal.
Related Links	http://iopscience.iop.org/article/10.1088/1757-899X/231/1/012036/pdf
ISSN	17578981
e-ISSN	1757899X
DOI	10.1088/1757-899x/231/1/012036
Journal	Iop Conference Series: Materials Science and Engineering
Volume Number	231
Language	English
Publisher	IOP Publishing
Publisher Date	2017-09-19
Access Restriction	Open
Subject Keyword	Journal: Iop Conference Series: Materials Science and Engineering Case Circuit Breaker Finite Element Simulation Molded Case Circuit Burnout Fault Wiring Terminal
Content Type	Text
Resource Type	Article

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