NDLI: Dynamic motion characteristics of a spherical copper particle in the break of SF6 HVDCCB

Content Provider	IET Digital Library
Author	Sima, Wenxia Shao, Qianqiu Sun, Potao Yang, Ming Xu, Hang Yin, Ze
Abstract	The development of high-voltage direct current circuit breaker (HVDCCB) has progressed rapidly. One of the major reasons for the failure of a circuit breaker is the metallic particle contamination. An enhanced mathematical model is proposed to simulate the motion dynamics of a spherical copper particle in the break of sulphur hexafluoride (SF6) HVDCCB. By linking COMSOL and MATLAB, the interaction between particle motion and electric field distribution and plastic random movement in the collision process is considered. The effects of voltage magnitude and particle size on the particle motion are discussed. By means of statistical methods, the obtained findings show that, as voltage magnitude decreases or particle size increases, the particle–anode collision frequency decreases, and the particle–anode collision region increases in the x -direction but decreases in the y -direction. The accuracy of the proposed model is verified by experimental observations via high-speed video camera.
Starting Page	160
Ending Page	167
Page Count	8
ISSN	17518822
Volume Number	13
e-ISSN	17518830
Issue Number	Issue 2, Mar (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-smt/13/2
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-smt.2018.5353
Journal	IET Science, Measurement & Technology
Publisher Date	2018-10-08
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Circuit Breaker Copper Dynamic Motion Characteristic Electric Field Distribution Enhanced Mathematical Model Failure Analysis High-voltage Direct Current Circuit Breaker HVDCCB Inorganic Insulation Metallic Particle Contamination Motion Dynamics Particle Motion Particle Size Particle–anode Collision Frequency Particle–anode Collision Region Reliability Spherical Copper Particle Statistical Analysis Statistics Switch Video Cameras Voltage Magnitude
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electrical and Electronic Engineering

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