Title :
Test and analysis of reliability for electromagnetic relay
Author :
Kui Li ; Yao, Fang ; Lu, Jianguo ; Li, Kui
Author_Institution :
Hebei Univ. of Technol., Tianjin, China
Abstract :
As relays are widely used in automatic control systems and communication systems, the reliability of relays is very important. Electromagnetic relays, type 155, were tested for their reliability in this paper. The test load was DC 24 V/spl times/0.1 A. During the test, the contact voltage drop, closing time and opening time were monitored and measured. At the end of test, we estimated the reliability of the relay according to the test results and analyzed the failure mode. The failure mechanisms were analyzed by observing the surfaces of failing contacts. We proposed a method for reducing the relay failure rate.
Keywords :
electromagnetic devices; electronic equipment testing; failure analysis; relays; reliability; 0.1 A; 24 V; automatic control systems; closing time; communication systems; contact voltage drop; electromagnetic relay; failing contact surfaces; failure mechanisms; failure mode; opening time; relay failure rate; relay reliability; relays; reliability; reliability analysis; reliability test; test load; Aerospace industry; Automatic control; Automatic testing; Circuit testing; Condition monitoring; Electromagnetic analysis; Failure analysis; Relays; System testing; Voltage;
Conference_Titel :
Electrical Contacts, 2000. Proceedings of the Forty-Sixth IEEE Holm Conference on
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-5960-7
DOI :
10.1109/HOLM.2000.889915
