Title :
An equivalent circuit for the electronic conduction of breaker switches
Author :
Karagiannopoulos, C.G. ; Bourkas, P.D. ; Dervos, C.T. ; Kagarakis, C.A.
Author_Institution :
Dept. of Electr. Eng., Nat. Tech. Univ. of Athens, Greece
Abstract :
Based on measurements performed on switch contacts it seems that nonlinear phenomena are manifested. These phenomena could be attributed to charge carrier transport processes, verified to exist in semiconductors and insulators. According to the experimental results, it could be stated that for current values greater than 15% of the nominal value negative differential resistance behavior is manifested across the contact joints. A contact resistance equivalent circuit based on the comparison of the electrical to the mechanical fatigue is proposed
Keywords :
circuit breakers; contact resistance; electrical contacts; equivalent circuits; breaker switches; charge carrier transport processes; contact joints; contact resistance equivalent circuit; electrical fatigue; electronic conduction; equivalent circuit; mechanical fatigue; negative differential resistance; nonlinear phenomena; switch contacts; Contact resistance; Equivalent circuits; Fatigue; Performance evaluation; Surface resistance; Switches; Switching circuits; Testing; Thermal force; Thermal resistance;
Conference_Titel :
Electrotechnical Conference, 1991. Proceedings., 6th Mediterranean
Conference_Location :
LJubljana
Print_ISBN :
0-87942-655-1
DOI :
10.1109/MELCON.1991.162111
