Title :
Reliability of commercial relays during life tests with intermediate or low power contact load
Author :
Rieder, Wemer ; Strof, Thomas
Author_Institution :
Dept. of Switching Devices & High Voltage Technol., Tech. Univ. of Vienna, Austria
Abstract :
The influence of the electrical stress on the contact resistance behavior of several signal and power relays has been investigated during life tests comprising 2 million operations. The results obtained with the aid of a specially developed test device showed characteristic contact resistance patterns for different electrical loads, contact materials, and designs. Under certain load conditions the contact resistance is increased by carbon deposits while both lower and higher loads caused lower contact resistance values.<>
Keywords :
contact resistance; life testing; relays; reliability; carbon deposits; contact load; contact resistance behavior; contact resistance patterns; electrical loads; electrical stress; life tests; load conditions; power relays; relays; reliability; Automatic testing; Circuit testing; Contact resistance; Electrical resistance measurement; Life testing; Materials testing; Modems; Pollution measurement; Relays; Switches;
Conference_Titel :
Electrical Contacts, 1991. Proceedings of the Thirty-Seventh IEEE Holm Conference on
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-0231-1
DOI :
10.1109/HOLM.1991.170809
