IEICE TRANSACTIONS on Electronics
Electric Measurement of Melting Phenomena for Breaking Relay Contacts
Summary :
Using the transient current switch circuit in parallel with the energizing switching contacts for timely control of breaking operation, the increase of contact voltage is suppressed at the last stage of the breaking of electric contacts. Breaking contact voltage Vc and current Ic of electromagnetic relays with Ag contacting electrodes were measured with 12.5-50 V and 0.1-20 A for two hinge springs (Spring constants; 2 N/mm and 0.2 N/mm). The current-decreasing process was clearly measured at the melting voltage Um. After Vc=Um, the breaking time of contact current did not depend on mechanical motion controlled by the two hinge springs and energizing power-supply voltage, but depended on the contact current. The residue of melt electrode was observed optically as a white fusion spot, with radius depending on the energizing current.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E92-C No.8 pp.998-1002
- Publication Date
- 2009/08/01
- Publicized
- Online ISSN
- 1745-1353
- DOI
- 10.1587/transele.E92.C.998
- Type of Manuscript
- Special Section PAPER (Special Section on Recent Development of Electro-Mechanical Devices (IS-EMD2008))
- Category
- Arc Discharge & Contact Phenomena
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Keyword
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Noboru WAKATSUKI, Nobuo TAKATSU, Masahiro OIKAWA, "Electric Measurement of Melting Phenomena for Breaking Relay Contacts" in IEICE TRANSACTIONS on Electronics,
vol. E92-C, no. 8, pp. 998-1002, August 2009, doi: 10.1587/transele.E92.C.998.
Abstract: Using the transient current switch circuit in parallel with the energizing switching contacts for timely control of breaking operation, the increase of contact voltage is suppressed at the last stage of the breaking of electric contacts. Breaking contact voltage Vc and current Ic of electromagnetic relays with Ag contacting electrodes were measured with 12.5-50 V and 0.1-20 A for two hinge springs (Spring constants; 2 N/mm and 0.2 N/mm). The current-decreasing process was clearly measured at the melting voltage Um. After Vc=Um, the breaking time of contact current did not depend on mechanical motion controlled by the two hinge springs and energizing power-supply voltage, but depended on the contact current. The residue of melt electrode was observed optically as a white fusion spot, with radius depending on the energizing current.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.E92.C.998/_p
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@ARTICLE{e92-c_8_998,
author={Noboru WAKATSUKI, Nobuo TAKATSU, Masahiro OIKAWA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Electric Measurement of Melting Phenomena for Breaking Relay Contacts},
year={2009},
volume={E92-C},
number={8},
pages={998-1002},
abstract={Using the transient current switch circuit in parallel with the energizing switching contacts for timely control of breaking operation, the increase of contact voltage is suppressed at the last stage of the breaking of electric contacts. Breaking contact voltage Vc and current Ic of electromagnetic relays with Ag contacting electrodes were measured with 12.5-50 V and 0.1-20 A for two hinge springs (Spring constants; 2 N/mm and 0.2 N/mm). The current-decreasing process was clearly measured at the melting voltage Um. After Vc=Um, the breaking time of contact current did not depend on mechanical motion controlled by the two hinge springs and energizing power-supply voltage, but depended on the contact current. The residue of melt electrode was observed optically as a white fusion spot, with radius depending on the energizing current.},
keywords={},
doi={10.1587/transele.E92.C.998},
ISSN={1745-1353},
month={August},}
Copy
TY - JOUR
TI - Electric Measurement of Melting Phenomena for Breaking Relay Contacts
T2 - IEICE TRANSACTIONS on Electronics
SP - 998
EP - 1002
AU - Noboru WAKATSUKI
AU - Nobuo TAKATSU
AU - Masahiro OIKAWA
PY - 2009
DO - 10.1587/transele.E92.C.998
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E92-C
IS - 8
JA - IEICE TRANSACTIONS on Electronics
Y1 - August 2009
AB - Using the transient current switch circuit in parallel with the energizing switching contacts for timely control of breaking operation, the increase of contact voltage is suppressed at the last stage of the breaking of electric contacts. Breaking contact voltage Vc and current Ic of electromagnetic relays with Ag contacting electrodes were measured with 12.5-50 V and 0.1-20 A for two hinge springs (Spring constants; 2 N/mm and 0.2 N/mm). The current-decreasing process was clearly measured at the melting voltage Um. After Vc=Um, the breaking time of contact current did not depend on mechanical motion controlled by the two hinge springs and energizing power-supply voltage, but depended on the contact current. The residue of melt electrode was observed optically as a white fusion spot, with radius depending on the energizing current.
ER -
English
