Characteristics of Vacuum Arc Voltage and Material Transfer with Different Contact Materials

2021 ◽  
Author(s):  
Ziang Tong ◽  
Jianwen Wu ◽  
Jun Chen ◽  
Xiaowu Luo ◽  
Shangwen Xia
Keyword(s):  
Vacuum Arc ◽  
Material Transfer ◽  
Contact Materials ◽  
Arc Voltage

Material transfer behavior of AgTiB2 and AgSnO2 electrical contact materials under different currents

2017 ◽  
Vol 114 ◽  
pp. 139-148 ◽  
Author(s):  
Hangyu Li ◽  
Xianhui Wang ◽  
Xiuhua Guo ◽  
Xiaohong Yang ◽  
Shuhua Liang
Keyword(s):  
Electrical Contact ◽  
Material Transfer ◽  
Contact Materials ◽  
Transfer Behavior ◽  
Electrical Contact Materials

Investigation of Vacuum Arc Voltage Characteristics Under Different Axial Magnetic Field Profiles

2010 ◽  
Vol 12 (6) ◽  
pp. 729-733 ◽  
Author(s):  
Shenli Jia ◽  
Xiaochuan Song ◽  
Xintao Huo ◽  
Zongqian Shi ◽  
Lijun Wang
Keyword(s):  
Magnetic Field ◽  
Axial Magnetic Field ◽  
Vacuum Arc ◽  
Arc Voltage

scholarly journals Research on Vacuum Arc Commutation Characteristics of a Natural-Commutate Hybrid DC Circuit Breaker

Energies ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 4823
Author(s):  
Dequan Wang ◽  
Minfu Liao ◽  
Rufan Wang ◽  
Tenghui Li ◽  
Jun Qiu ◽  
...  
Keyword(s):  
Solid State ◽  
Theoretical Analysis ◽  
Theoretical Foundation ◽  
Circuit Breaker ◽  
Vacuum Arc ◽  
Important Process ◽  
Mathematical Formula ◽  
Arc Voltage ◽  
Dc Circuit Breaker ◽  
Key Parameter

Vacuum arc commutation is an important process in natural-commutate hybrid direct current (DC) circuit breaker (NHCB) interruption, as the duration of vacuum arc commutation will directly affect the arcing time and interrupting time of NHCB. In this paper, the vacuum arc commutation model of NHCB was established by simplifying solid-state switch (SS) and vacuum arc voltage. Through theoretical analysis and experiments, the vacuum arc commutation characteristics of NHCB were studied. The mathematical formula of the effect of main parameters on the duration of vacuum arc commutation is obtained, and the changing law of the influence of the main parameters on the duration of the vacuum arc commutation is explored. The concept of vacuum arc commutation coefficient is proposed, and it is a key parameter that influences the vacuum arc commutation characteristics. The research on the characteristics of vacuum arc commutation can provide theoretical foundation for the structure and parameter optimization of NHCB and other equipment that uses vacuum arc commutation.

The Investigation of Material Transfer Characteristics and Surface Morphology of PtIr Contact Materials

2012 ◽  
Vol 271-272 ◽  
pp. 305-309
Author(s):  
Sai Bei Wang ◽  
Ming Xie ◽  
You Cai Yang ◽  
Ji Ming Zhang ◽  
Yong Tai Chen ◽  
...  
Keyword(s):  
Surface Morphology ◽  
Low Voltage ◽  
Testing Machine ◽  
Material Surface ◽  
Resistive Load ◽  
Contact Material ◽  
Material Transfer ◽  
Contact Materials ◽  
Transfer Characteristics ◽  
Electrical Erosion

Material transfer characteristics and surface morphology of contact material reflects their electrical erosion performance. In this paper, by using a JF04C contact material testing machine, the characteristics of electrical erosion of PtIr contact materials are acquired under low voltage, resistive load and small current. By means of an electronic balance and SEM, the material transfer values of the PtIr contact materials and the characteristics of contact material surface profile are obtained and analyzed. The results show that PtIr alloy contact materials mainly transfer from cathode to anode and its breaking arcs are metallic phase.

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