Arc mobility on new and eroded Ag/CdO and Ag/SnO2 contacts

The mobility of break arcs in a magnetic blast-field was investigated in both a model switch and a commercial contactor. After contact separation, three arc motion phenomena were measured independently: initial reduced arc motion (immobility and creeping), subsequent running, and final commutation f...

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Bibliographic Details
Published inElectrical Contacts, 1988., Proceedings of the Thirty Fourth Meeting of the IEEE Holm Conference on Electrical Contacts pp. 47 - 56
Main Authors Manhart, H., Reider, W., Veit, C.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1988
Subjects
Contactors
IEC
Life testing
Magnetic separation
Motion detection
Motion measurement
Performance evaluation
Stress
Time measurement
Voltage
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Summary:The mobility of break arcs in a magnetic blast-field was investigated in both a model switch and a commercial contactor. After contact separation, three arc motion phenomena were measured independently: initial reduced arc motion (immobility and creeping), subsequent running, and final commutation from the contacts to the arc runners. Contacts made from Ag/CdO and from Ag/SnO/sub 2/ were compared in both new and eroded states. The results of erosion measurements under various stress conditions were consistent with the mobility phenomena observed.< >
DOI:10.1109/HOLM.1988.16093