Title :
Contact welding at break of motor inrush current
Author :
Schoepf, Thomas J. ; Rowlands, Robert ; Drew, George A.
Author_Institution :
Delphi Deutschland GmbH, Langenlonsheim
fDate :
6/1/2006 12:00:00 AM
Abstract :
The contact welding phenomenon observed at automotive relays at switch-off of a dc motor load during startup was investigated. Contact welding occurred during the first operation and was caused by anodic arcs shorter than 80 mus at breaking inrush currents of up to 85 A. The switching performance of the type of relay investigated could be correlated with the parameters: over-travel, release time, and the break current
Keywords :
DC motors; automotive components; electrical contacts; relays; starting; anodic arcs; automotive relays; break current; contact welding; dc motor startup; dynamic welding; inrush current; over-travel parameter; release time; silver contacts; switching performance; Circuit testing; Coils; Contacts; DC motors; Relays; Silver; Surges; Switches; Vehicle dynamics; Welding; Automotive relay; dynamic welding; inrush current; silver contacts;
Journal_Title :
Components and Packaging Technologies, IEEE Transactions on
DOI :
10.1109/TCAPT.2006.875904
