Effect of Heating Value on Contact Diameter at Low Speed Breaking Contact

Kazuaki MIYANAGA; Yoshiki KAYANO; Tasuku TAKAGI; Hiroshi INOUE

doi:10.1587/transele.E92.C.1020

Effect of Heating Value on Contact Diameter at Low Speed Breaking Contact

Kazuaki MIYANAGA, Yoshiki KAYANO, Tasuku TAKAGI, Hiroshi INOUE

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It is necessary to know how the contact voltage and contact area vary with time to clarify the physics of contact lifetime and contact resistance. In this paper, to clarify the effect of the heating value on the diameter of the contact area, the variations of the contact voltage and contact diameter with time are measured at a low-speed breaking contact near the thermal equilibrium condition under which a stable bridge is generated. The effect of the heating value on the relationship between the contact diameter and the length of the bridge at breaking is also discussed. In the results, the contact voltage waveform was found to be macroscopically proportional to the displacement of the moving electrode l_c. On the other hand, the contact diameter d_c decreased slightly with increasing l_c. At all currents investigated d_c decreased when l_c increased. The length of the bridge at breaking was increased by increasing the current. A large heating value of the contact area resulted in a long bridge because the volume of the melted metal increases.

Publication: IEICE TRANSACTIONS on Electronics Vol.E92-C No.8 pp.1020-1022

Publication Date: 2009/08/01

Publicized

Online ISSN: 1745-1353

DOI: 10.1587/transele.E92.C.1020

Type of Manuscript: Special Section LETTER (Special Section on Recent Development of Electro-Mechanical Devices (IS-EMD2008))

Category: Arc Discharge & Contact Phenomena

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Kazuaki MIYANAGA, Yoshiki KAYANO, Tasuku TAKAGI, Hiroshi INOUE, "Effect of Heating Value on Contact Diameter at Low Speed Breaking Contact" in IEICE TRANSACTIONS on Electronics, vol. E92-C, no. 8, pp. 1020-1022, August 2009, doi: 10.1587/transele.E92.C.1020.
Abstract: It is necessary to know how the contact voltage and contact area vary with time to clarify the physics of contact lifetime and contact resistance. In this paper, to clarify the effect of the heating value on the diameter of the contact area, the variations of the contact voltage and contact diameter with time are measured at a low-speed breaking contact near the thermal equilibrium condition under which a stable bridge is generated. The effect of the heating value on the relationship between the contact diameter and the length of the bridge at breaking is also discussed. In the results, the contact voltage waveform was found to be macroscopically proportional to the displacement of the moving electrode l_c. On the other hand, the contact diameter d_c decreased slightly with increasing l_c. At all currents investigated d_c decreased when l_c increased. The length of the bridge at breaking was increased by increasing the current. A large heating value of the contact area resulted in a long bridge because the volume of the melted metal increases.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.E92.C.1020/_p

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@ARTICLE{e92-c_8_1020,
author={Kazuaki MIYANAGA, Yoshiki KAYANO, Tasuku TAKAGI, Hiroshi INOUE, },
journal={IEICE TRANSACTIONS on Electronics},
title={Effect of Heating Value on Contact Diameter at Low Speed Breaking Contact},
year={2009},
volume={E92-C},
number={8},
pages={1020-1022},
abstract={It is necessary to know how the contact voltage and contact area vary with time to clarify the physics of contact lifetime and contact resistance. In this paper, to clarify the effect of the heating value on the diameter of the contact area, the variations of the contact voltage and contact diameter with time are measured at a low-speed breaking contact near the thermal equilibrium condition under which a stable bridge is generated. The effect of the heating value on the relationship between the contact diameter and the length of the bridge at breaking is also discussed. In the results, the contact voltage waveform was found to be macroscopically proportional to the displacement of the moving electrode l_c. On the other hand, the contact diameter d_c decreased slightly with increasing l_c. At all currents investigated d_c decreased when l_c increased. The length of the bridge at breaking was increased by increasing the current. A large heating value of the contact area resulted in a long bridge because the volume of the melted metal increases.},
keywords={},
doi={10.1587/transele.E92.C.1020},
ISSN={1745-1353},
month={August},}

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TY - JOUR
TI - Effect of Heating Value on Contact Diameter at Low Speed Breaking Contact
T2 - IEICE TRANSACTIONS on Electronics
SP - 1020
EP - 1022
AU - Kazuaki MIYANAGA
AU - Yoshiki KAYANO
AU - Tasuku TAKAGI
AU - Hiroshi INOUE
PY - 2009
DO - 10.1587/transele.E92.C.1020
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E92-C
IS - 8
JA - IEICE TRANSACTIONS on Electronics
Y1 - August 2009
AB - It is necessary to know how the contact voltage and contact area vary with time to clarify the physics of contact lifetime and contact resistance. In this paper, to clarify the effect of the heating value on the diameter of the contact area, the variations of the contact voltage and contact diameter with time are measured at a low-speed breaking contact near the thermal equilibrium condition under which a stable bridge is generated. The effect of the heating value on the relationship between the contact diameter and the length of the bridge at breaking is also discussed. In the results, the contact voltage waveform was found to be macroscopically proportional to the displacement of the moving electrode l_c. On the other hand, the contact diameter d_c decreased slightly with increasing l_c. At all currents investigated d_c decreased when l_c increased. The length of the bridge at breaking was increased by increasing the current. A large heating value of the contact area resulted in a long bridge because the volume of the melted metal increases.
ER -