Relationship between Arc Duration and Motion of Arc Spots for Break Arcs of Ag and Ag/ZnO Electrical Contacts

Junya SEKIKAWA; Takumi SUGIO; Takayoshi KUBONO

doi:10.1093/ietele/e91-c.8.1249

Relationship between Arc Duration and Motion of Arc Spots for Break Arcs of Ag and Ag/ZnO Electrical Contacts

Junya SEKIKAWA, Takumi SUGIO, Takayoshi KUBONO

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Break arcs are generated in a DC 42 V-10 A resistive circuit. The contact material is Ag or Ag/ZnO. The number of break operations is two hundreds for each contact material. The motion of break arcs is observed with a high-speed camera. Relationship between the dependence of arc duration on the number of operations and the motion of arc spots is investigated. The following results are shown. For Ag contacts the arc duration is almost constant independent to the number of break operations. For Ag/ZnO contacts, on the other hand, the arc duration changes irregularly to short (59 ms) or long (69 ms) arc-duration after 30th break operation. The moving range of arc spots on contact surfaces is broad for the case of short arc-duration and is narrow for the case of long arc-duration. The cause of the results for Ag/ZnO contacts is considered that the difference of the boiling points of Ag and ZnO leads to the porous structure on the contact surface.

Publication: IEICE TRANSACTIONS on Electronics Vol.E91-C No.8 pp.1249-1254

Publication Date: 2008/08/01

Publicized

Online ISSN: 1745-1353

DOI: 10.1093/ietele/e91-c.8.1249

Type of Manuscript: Special Section PAPER (Special Section on Recent Development of Electromechanical Devices(Selected Papers from IS-EMD2007))

Category: Arc Discharge & Related Phenomena

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Junya SEKIKAWA, Takumi SUGIO, Takayoshi KUBONO, "Relationship between Arc Duration and Motion of Arc Spots for Break Arcs of Ag and Ag/ZnO Electrical Contacts" in IEICE TRANSACTIONS on Electronics, vol. E91-C, no. 8, pp. 1249-1254, August 2008, doi: 10.1093/ietele/e91-c.8.1249.
Abstract: Break arcs are generated in a DC 42 V-10 A resistive circuit. The contact material is Ag or Ag/ZnO. The number of break operations is two hundreds for each contact material. The motion of break arcs is observed with a high-speed camera. Relationship between the dependence of arc duration on the number of operations and the motion of arc spots is investigated. The following results are shown. For Ag contacts the arc duration is almost constant independent to the number of break operations. For Ag/ZnO contacts, on the other hand, the arc duration changes irregularly to short (59 ms) or long (69 ms) arc-duration after 30th break operation. The moving range of arc spots on contact surfaces is broad for the case of short arc-duration and is narrow for the case of long arc-duration. The cause of the results for Ag/ZnO contacts is considered that the difference of the boiling points of Ag and ZnO leads to the porous structure on the contact surface.
URL: https://global.ieice.org/en_transactions/electronics/10.1093/ietele/e91-c.8.1249/_p

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@ARTICLE{e91-c_8_1249,
author={Junya SEKIKAWA, Takumi SUGIO, Takayoshi KUBONO, },
journal={IEICE TRANSACTIONS on Electronics},
title={Relationship between Arc Duration and Motion of Arc Spots for Break Arcs of Ag and Ag/ZnO Electrical Contacts},
year={2008},
volume={E91-C},
number={8},
pages={1249-1254},
abstract={Break arcs are generated in a DC 42 V-10 A resistive circuit. The contact material is Ag or Ag/ZnO. The number of break operations is two hundreds for each contact material. The motion of break arcs is observed with a high-speed camera. Relationship between the dependence of arc duration on the number of operations and the motion of arc spots is investigated. The following results are shown. For Ag contacts the arc duration is almost constant independent to the number of break operations. For Ag/ZnO contacts, on the other hand, the arc duration changes irregularly to short (59 ms) or long (69 ms) arc-duration after 30th break operation. The moving range of arc spots on contact surfaces is broad for the case of short arc-duration and is narrow for the case of long arc-duration. The cause of the results for Ag/ZnO contacts is considered that the difference of the boiling points of Ag and ZnO leads to the porous structure on the contact surface.},
keywords={},
doi={10.1093/ietele/e91-c.8.1249},
ISSN={1745-1353},
month={August},}

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TY - JOUR
TI - Relationship between Arc Duration and Motion of Arc Spots for Break Arcs of Ag and Ag/ZnO Electrical Contacts
T2 - IEICE TRANSACTIONS on Electronics
SP - 1249
EP - 1254
AU - Junya SEKIKAWA
AU - Takumi SUGIO
AU - Takayoshi KUBONO
PY - 2008
DO - 10.1093/ietele/e91-c.8.1249
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E91-C
IS - 8
JA - IEICE TRANSACTIONS on Electronics
Y1 - August 2008
AB - Break arcs are generated in a DC 42 V-10 A resistive circuit. The contact material is Ag or Ag/ZnO. The number of break operations is two hundreds for each contact material. The motion of break arcs is observed with a high-speed camera. Relationship between the dependence of arc duration on the number of operations and the motion of arc spots is investigated. The following results are shown. For Ag contacts the arc duration is almost constant independent to the number of break operations. For Ag/ZnO contacts, on the other hand, the arc duration changes irregularly to short (59 ms) or long (69 ms) arc-duration after 30th break operation. The moving range of arc spots on contact surfaces is broad for the case of short arc-duration and is narrow for the case of long arc-duration. The cause of the results for Ag/ZnO contacts is considered that the difference of the boiling points of Ag and ZnO leads to the porous structure on the contact surface.
ER -