Erosion phenomena for AgNi and AgSnO2 contacts in A.C low voltage switches

L. Chaâbane; M. Sassi

Erosion phenomena for AgNi and AgSnO₂ contacts in A.C low voltage switches

L. Chaâbane
, M. Sassi

Mechanical & Nuclear Engineering

National School of Engineers

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

The reliability of low voltage switches is verified by endurance tests (CEI- 60669-1). The most important problems are excessive wear and erosion or other harmful effect occurring in normal use, because of presence of electrical arc during making and braking operations.The subject of this work is experimental study of erosion phenomena of switches electrical contacts during their life. Tests are done for a.c switches with a rate voltage (250V) and a rate current (16A), and with AgNi and AgSnO₂ contacts. Switches are tested with inductive loads (cosφ=0,6 and cosφ=0,3) and are subjected to 30000 operations at a uniform rate of 15 openinig-closing operations per minute. Based on contact mass variation during endurance tests, different behaviours have been observed for AgNi and AgSnO₂ contacts. In switch endurance tests, contamination of contacts by carbonaceous deposits, coming from internal electrically insulated box of the switch, by a thermal phenomenon due to electrical arc, has masked contact mass loss and has shown magnitude and importance of this phenomenon.

Original language	British English
Title of host publication	Proceedings of the 3rd International Conference on Reliability of Electrical Products and Electrical Contacts, ICREPEC 2009
Editors	Jingying Zhao, Jingqin Wang
Pages	112-114
Number of pages	3
ISBN (Electronic)	9789889968489
State	Published - 2009
Event	3rd International Conference on Reliability of Electrical Products and Electrical Contacts, ICREPEC 2009 - Wenzhou, China Duration: 18 Oct 2009 → 21 Oct 2009

Publication series

Name	Proceedings of the 3rd International Conference on Reliability of Electrical Products and Electrical Contacts, ICREPEC 2009

Conference

Conference	3rd International Conference on Reliability of Electrical Products and Electrical Contacts, ICREPEC 2009
Country/Territory	China
City	Wenzhou
Period	18/10/09 → 21/10/09

Keywords

AgNi
AgSnO
Contact
Reliability
Switches

Cite this

Chaâbane, L., & Sassi, M. (2009). Erosion phenomena for AgNi and AgSnO₂ contacts in A.C low voltage switches. In J. Zhao, & J. Wang (Eds.), Proceedings of the 3rd International Conference on Reliability of Electrical Products and Electrical Contacts, ICREPEC 2009 (pp. 112-114). (Proceedings of the 3rd International Conference on Reliability of Electrical Products and Electrical Contacts, ICREPEC 2009).

Chaâbane, L. ; Sassi, M. / Erosion phenomena for AgNi and AgSnO₂ contacts in A.C low voltage switches. Proceedings of the 3rd International Conference on Reliability of Electrical Products and Electrical Contacts, ICREPEC 2009. editor / Jingying Zhao ; Jingqin Wang. 2009. pp. 112-114 (Proceedings of the 3rd International Conference on Reliability of Electrical Products and Electrical Contacts, ICREPEC 2009).

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title = "Erosion phenomena for AgNi and AgSnO2 contacts in A.C low voltage switches",

abstract = "The reliability of low voltage switches is verified by endurance tests (CEI- 60669-1). The most important problems are excessive wear and erosion or other harmful effect occurring in normal use, because of presence of electrical arc during making and braking operations.The subject of this work is experimental study of erosion phenomena of switches electrical contacts during their life. Tests are done for a.c switches with a rate voltage (250V) and a rate current (16A), and with AgNi and AgSnO2 contacts. Switches are tested with inductive loads (cosφ=0,6 and cosφ=0,3) and are subjected to 30000 operations at a uniform rate of 15 openinig-closing operations per minute. Based on contact mass variation during endurance tests, different behaviours have been observed for AgNi and AgSnO2 contacts. In switch endurance tests, contamination of contacts by carbonaceous deposits, coming from internal electrically insulated box of the switch, by a thermal phenomenon due to electrical arc, has masked contact mass loss and has shown magnitude and importance of this phenomenon.",

keywords = "AgNi, AgSnO, Contact, Reliability, Switches",

author = "L. Cha{\^a}bane and M. Sassi",

note = "Publisher Copyright: Copyright {\textcopyright} 2009 by International Academic Publishers Ltd.; 3rd International Conference on Reliability of Electrical Products and Electrical Contacts, ICREPEC 2009 ; Conference date: 18-10-2009 Through 21-10-2009",

year = "2009",

language = "British English",

series = "Proceedings of the 3rd International Conference on Reliability of Electrical Products and Electrical Contacts, ICREPEC 2009",

pages = "112--114",

editor = "Jingying Zhao and Jingqin Wang",

booktitle = "Proceedings of the 3rd International Conference on Reliability of Electrical Products and Electrical Contacts, ICREPEC 2009",

}

Chaâbane, L & Sassi, M 2009, Erosion phenomena for AgNi and AgSnO₂ contacts in A.C low voltage switches. in J Zhao & J Wang (eds), Proceedings of the 3rd International Conference on Reliability of Electrical Products and Electrical Contacts, ICREPEC 2009. Proceedings of the 3rd International Conference on Reliability of Electrical Products and Electrical Contacts, ICREPEC 2009, pp. 112-114, 3rd International Conference on Reliability of Electrical Products and Electrical Contacts, ICREPEC 2009, Wenzhou, China, 18/10/09.

Erosion phenomena for AgNi and AgSnO₂ contacts in A.C low voltage switches. / Chaâbane, L.; Sassi, M.
Proceedings of the 3rd International Conference on Reliability of Electrical Products and Electrical Contacts, ICREPEC 2009. ed. / Jingying Zhao; Jingqin Wang. 2009. p. 112-114 (Proceedings of the 3rd International Conference on Reliability of Electrical Products and Electrical Contacts, ICREPEC 2009).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Erosion phenomena for AgNi and AgSnO2 contacts in A.C low voltage switches

AU - Chaâbane, L.

AU - Sassi, M.

PY - 2009

Y1 - 2009

N2 - The reliability of low voltage switches is verified by endurance tests (CEI- 60669-1). The most important problems are excessive wear and erosion or other harmful effect occurring in normal use, because of presence of electrical arc during making and braking operations.The subject of this work is experimental study of erosion phenomena of switches electrical contacts during their life. Tests are done for a.c switches with a rate voltage (250V) and a rate current (16A), and with AgNi and AgSnO2 contacts. Switches are tested with inductive loads (cosφ=0,6 and cosφ=0,3) and are subjected to 30000 operations at a uniform rate of 15 openinig-closing operations per minute. Based on contact mass variation during endurance tests, different behaviours have been observed for AgNi and AgSnO2 contacts. In switch endurance tests, contamination of contacts by carbonaceous deposits, coming from internal electrically insulated box of the switch, by a thermal phenomenon due to electrical arc, has masked contact mass loss and has shown magnitude and importance of this phenomenon.

AB - The reliability of low voltage switches is verified by endurance tests (CEI- 60669-1). The most important problems are excessive wear and erosion or other harmful effect occurring in normal use, because of presence of electrical arc during making and braking operations.The subject of this work is experimental study of erosion phenomena of switches electrical contacts during their life. Tests are done for a.c switches with a rate voltage (250V) and a rate current (16A), and with AgNi and AgSnO2 contacts. Switches are tested with inductive loads (cosφ=0,6 and cosφ=0,3) and are subjected to 30000 operations at a uniform rate of 15 openinig-closing operations per minute. Based on contact mass variation during endurance tests, different behaviours have been observed for AgNi and AgSnO2 contacts. In switch endurance tests, contamination of contacts by carbonaceous deposits, coming from internal electrically insulated box of the switch, by a thermal phenomenon due to electrical arc, has masked contact mass loss and has shown magnitude and importance of this phenomenon.

KW - AgNi

KW - AgSnO

KW - Contact

KW - Reliability

KW - Switches

UR - https://www.scopus.com/pages/publications/84908368227

M3 - Conference contribution

AN - SCOPUS:84908368227

T3 - Proceedings of the 3rd International Conference on Reliability of Electrical Products and Electrical Contacts, ICREPEC 2009

SP - 112

EP - 114

BT - Proceedings of the 3rd International Conference on Reliability of Electrical Products and Electrical Contacts, ICREPEC 2009

A2 - Zhao, Jingying

A2 - Wang, Jingqin

T2 - 3rd International Conference on Reliability of Electrical Products and Electrical Contacts, ICREPEC 2009

Y2 - 18 October 2009 through 21 October 2009

ER -

Chaâbane L, Sassi M. Erosion phenomena for AgNi and AgSnO₂ contacts in A.C low voltage switches. In Zhao J, Wang J, editors, Proceedings of the 3rd International Conference on Reliability of Electrical Products and Electrical Contacts, ICREPEC 2009. 2009. p. 112-114. (Proceedings of the 3rd International Conference on Reliability of Electrical Products and Electrical Contacts, ICREPEC 2009).