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

fYear

2000

fDate

25-27 Sept. 2000

Firstpage

79

Lastpage

82

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/HOLM.2000.889915

Filename

889915