Ruiliang Guan

Changshu Switch Manufacturing (China)

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Nairui Yin

Changshu Switch Manufacturing (China)

Hongwu Liu

Southwest Petroleum University

Zhu Tiansheng

Guangzhou Electronic Technology (China)

Hongwu Liu

Beihang University

Shenli Jia

Xi'an Jiaotong University

Degui Chen

Xi'an University of Science and Technology

Lijun Wang

Liaoning Shihua University

Jia Shenli

Sichuan University

HE Yan-feng

PowerChina (China)

Zongqian Shi

Xi'an Jiaotong University

Cooperative Institutions

Xi'an Jiaotong University

Changshu Switch Manufacturing (China)

Chinese Academy of Sciences

State Key Laboratory of Electrical Insulation and Power Equipment

Qingdao University of Technology

Qingdao University of Science and Technology

Sichuan University

Institute of Electrical Engineering

Hebei University of Technology

Qingdao University

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Experimental investigations of internal pressure in quenching chamber of low voltage MCCB

Lijun Wang Hongwu Liu Chonglong Ge Ruiliang Guan Lin Chen

For a kind of commercial MCCB, arc current, arc voltage, internal pressure of arc extinguish chamber, and arc moving images under different breaking conditions have been measured respectively, based on ATiS BE12 data acquisition system, pressure sensors and high-speed camera. Based on Kistler sensor and electromagnetic screen cover, an arc extinguish chamber internal pressure measuring method has been established. Meanwhile, the influence of arc power, gassing material and outlet cover plate on pressure has been investigated. Experimental results show that the pressure waveform almost has a consistent trend with the arc power. The internal pressure has been improved apparently because of the presence of gassing material. The peak and rise rate of the pressure will be higher when there is a outlet cover plate and the pressure peak slightly ahead of the arc power peak.

Electric arc

Internal pressure

Intensity

10.1109/icepe-st.2013.6804389

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Citations (2)

Strike Phenomena During Interruption of Low Voltage Circuit Breaker

Low Voltage Apparatus (2011)

Ruiliang Guan

Arc back-strike and strike between terminal were typical strike phenomena in low voltage circuit breakers,the relation between two strike phenomenas was analyzed and it was suggested restraining arc back-strike and strike between terminal could be concluded as one problem,some methods and measurements were introduced to restrain strike back commutation arc.

Transient recovery voltage

Commutation

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Study on the motion behaviors of a high-current air arc between a pair of parallel arc-runners

IEICE Technical Report; IEICE Tech. Rep. (2010)

Ruiliang Guan Hongwu Liu Nairuir Yin HE Yan-feng Degui Chen

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The influence of magnetic and electric fields to the arc motion in low-voltage apparatus

IEICE Technical Report; IEICE Tech. Rep. (2013)

Hongwu Liu Ruiliang Guan Nairui Yin Weiwen Lu

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Citations (1)

Study of Software Development for Low Voltage Power Distribution Design and Selection

Low Voltage Apparatus (2013)

Ruiliang Guan

With the advancement of security and reliability of power distribution,several foreign companies has push out their own power destribution design software.At home,the research of power distribution design software is in the initial stage,the caculation tools′s function is single,and it has not the function of equipment selection for power distribution grid.This paper studied the whole design idea of this type of software,in which five important functional modules were introduced including preparation power grid construction logic inspection,power grid caculation,software database construction etc.

Power grid

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Study on voltage characteristics of short air arc with high current density arc root

AIP Advances (2019)

Zhu Tiansheng Hongwu Liu Ruiliang Guan Shenli Jia Nairui Yin

In this paper, the voltage characteristics of short air arc with high average current density arc root were studied at atmospheric pressure. Cu-W electrodes with diameter of 5-14mm and gap length of 0.2-3 mm were used in the experimental study. The experimental current varies from 1,000A to 16,600 A. The average current density of the arc roots in the experiment was up to 245 A/mm2. In the scope of this study, the arc voltage is a function of the average current density of arc root when the electrode gap length is fixed. For same average current density of arc root, the arc voltage is approximately the same even if the experimental currents are different. And the arc voltage increases with the increment of the average current density of arc root. Theoretical analysis and experimental results show that the electrode fall voltage almost doesn’t change with the average current density of arc root. However the arc column voltage increases with the increment of the average current density of arc root.

Electric arc

10.1063/1.5100633

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Citations (5)

Analysis and Simulation of Mistaken Action of Intelligent Contactor under Shocks

Low Voltage Apparatus (2010)

Ruiliang Guan

Simulation of mistaken action of feedback controlled electromagnet under shock was presented,according to the simulation results,voltage feedback controlled electromagnet was considered to be better than the current feedback controlled electromagnet in shock-resistance.Based on monitoring the change of current or voltage of the coil,a control method to improve the shock-resistance by which the probability of mistaken action and the power of the coil could be reduced was put forward.

Electromagnet

Contactor

Electric shock

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Citations (1)

Experimental study on the behaviors of arc-root by using separate mesh electrodes (Electromechanical Devices : 国際セッション IS-EMD2014)

IEICE technical report. Speech (2014)

Hongwu Liu Nairui Yin Xinyi Xie Zhu Tiansheng Ruiliang Guan

Root (linguistics)

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Study on the Breaking Characteristics of Low Voltage DC Circuit Breaker in the Low-current Situation

IEICE Technical Report; IEICE Tech. Rep. (2013)

Yunfeng Wang Xingwen Li Degui Chen Hongwu Liu Ruiliang Guan

Transient recovery voltage

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Simulation and experiment on influence of wall ablation to pressure and power of the arc in low-voltage circuit breaker

Nairui Yin Ruiliang Guan Zongqian Shi Hongwu Liu Lijun Wang

By considering properties of the arc, heat and radioactive phenomena and air blow, a simplified simulation model is introduced to investigate relations of the pressure and arc power. Influence of different wall parameters such as shape and materials are considered in the simulation model. According to the simplified simulation model, the corresponding experiment model is established to measure the pressure and arc power in arc interrupting process with different wall parameters. By comparing relations of pressure and arc power, the experiment results verify the validity of the simulation model.

Electric arc

Pre-charge

10.1109/icepe-st.2015.7368327

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Citations (1)