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IEICE TRANSACTIONS on Electronics

Influence of the Splitter Plates on the High Current Air Arc in Low Voltage Circuit Breaker

Hongwu LIU, Ruiliang GUAN, Nairui YIN, Xinyi XIE, Degui CHEN

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Summary :

The influence of the splitter plates on the high-current arc roots formation in low voltage circuit breaker is investigated. One arc quenching chamber model is designed, where the shape of the splitter plates can be changed. The capacitor bank circuit is used to provide the test power supply, and the effective value of the prospective short circuit current is fixed to 10kA. High speed CCD camera is adopted to record the arc images during the arcing duration. Arc current and voltage are also measured to analyze the arc characteristics. In addition, a simplified 1-D thermal-electric model is developed to investigate the influence of the splitter plates on the distribution of the current density of the arc plasma with the assumption of local thermal equilibrium (LTE). It shows that the distance between the arc initial ignition location and the splitter plates is crucial to the arc root formation.

Publication
IEICE TRANSACTIONS on Electronics Vol.E96-C No.9 pp.1119-1123
Publication Date
2013/09/01
Publicized
Online ISSN
1745-1353
DOI
10.1587/transele.E96.C.1119
Type of Manuscript
Special Section PAPER (Special Section on Recent Development of Electro-Mechanical Devices — Papers selected from International Session on Electro-Mechanical Devices 2012 (IS-EMD2012) and other recent research results —)
Category

Authors

Hongwu LIU
  Changshu Switchgear Mfg. Co., Ltd.
Ruiliang GUAN
  Changshu Switchgear Mfg. Co., Ltd.
Nairui YIN
  Changshu Switchgear Mfg. Co., Ltd.
Xinyi XIE
  Changshu Switchgear Mfg. Co., Ltd.
Degui CHEN
  Xi'an Jiaotong Univ.

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