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| Experiment on DC Inductive Arcs Driven by Axial and Transverse Magnetic Fields |
| Zhai Guofu, Zhou Xue, Yang Wenying |
| Harbin Institute of Technology Harbin 150001 China |
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Abstract Electrical arc within a pair of AgSnO2 contacts is investigated when a DC inductive circuit is opened at different velocities. The arc is driven by axial and transverse magnetic fields. A 28V/5A inductive circuit is adopted as the experiment circuit, of which the time constant is 2 ms. Density of both the axial and the transverse magnetic fields varies from 0mT to 200mT. The opening speed varies from 10mm/s to 50mm/s. A high speed camera and an oscilloscope are used to record time variations of arc images and arc voltages, simultaneously. Relationships between flux density and arc parameters, such as arc durations, arc stagnation time, distribution of arc positions and arc root velocities, are obtained at those opening speeds. Material transfer mass is measured at every 5000 breaking operations. Influences of the magnetic fields on the transfer mass are obtained under two types of the magnetic fields at those speeds. The results can be used to design magnetic blow contacts in switches.
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Received: 20 February 2010
Published: 07 March 2014
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[1] Liu Zhiyuan, Cheng Shaoyong, Zheng Yuesheng, et al. Comparison of vacuum arc behaviors between axial- magnetic-field contacts[J]. IEEE Transactions on Plasma Science, 2008, 36(1): 200-207.
[2] Shi Zongqian, Jia Shenli, Fu Jun, et al. Axial magnetic field contacts with nonuniform distributed axial magnetic fields[J]. IEEE Transactions on Plasma Science, 2003, 31(2): 289-294.
[3] Gentsch Dietmar, Shang Wenkai. High-speed observations of arc modes and material erosion on RMF- and AMF-contact electrodes[J]. IEEE Transactions on Plasma Science, 2005, 33(5): 1605-1610.
[4] Ma Qiang, Rong Mingzhe, Murphy Anthony, et al. Simulation and experimental study of arc motion in a low-voltage circuit breaker considering wall ablation[J]. IEICE Transactions on Electronics, 2008, E91-C(8): 1240-1247.
[5] Wu Yi, Rong Mingzhe, Sun Zhiqiang, et al. Numerical analysis of arc plasma behavior during contact opening process in low-voltage switching device[J]. Journal Physics D: Applied Physics, 2007, 40: 795-802.
[6] Sekikawa Junya, Kubono Takayoshi. Motion of break arcs driven by external magnetic field in a DC42V resistive circuit[J]. IEICE Transactions on Electronics, 2008, E91-C(8): 1255-1259.
[7] Sekikawa Junya, Kubono Takayoshi. Rotational motion of break arcs driven by radial magnetic field in a DC resistive circuit[J]. IEICE Technical Report, 2008, 108(296): 145-148.
[8] Zhai Guofu, Zhou Xue, Yang Wenying. Investigation on arc characteristics under axial and transverse magnetic fields[J]. IEICE Technical Report, 2008, 108(296): 137-140.
[9] Ben Jemaa Nouredine, Queffelec Jean Louis, Travers Daniel. Some investigations on slow and fast arc voltage fluctuations for contact materials proceeding in various gases and direct current[J]. IEEE Transactions on Components, Hybrids, and Manufacturing Technology, 1991, 14(1): 113-117.
[10] Willem Merck, Zatelepin Valeri. The gas dynamics of current-limiting devices during immobility time[J]. IEEE Transactions on Plasma Science, 1997, 25(5): 947-951.
[11] Bolbel Elima, Lauaire Michel. Behavior of switching arc in low-voltage limiter circuit breaker[J]. IEEE Transactions on Components, Hybrids, and Manufacturing Technology, 1985, 8(1): 3-12.
[12] Bolbel Elima. Immobility duration of electrical arc between contactor poles at breaking instant[C]. Proceeding of 11th Conference on Electrical contact phenomena, 1982: 168-170.
[13] 程礼椿, 阎炜. 低气压大气对磁驱动电弧运动的效应[J]. 电工技术学报, 1990, 5(1): 39-45.
Cheng Lichun, Yan Wei. Effects of low atmospheric pressure on motion of magnetically driven arcs[J]. Transactions of China Electrotechnical Society, 1990, 5(1): 39-45. |
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2011, Vol. 26 
