Browse > Article
http://dx.doi.org/10.4313/JKEM.2017.30.8.520

Change of Operating Characteristics of Latching Relay with Temperature  

Ryu, Jae-Man (Department of Electrical Engineering, Inha University)
Jin, In-Young (Department of Electrical Engineering, Inha University)
Huh, Chang-Su (Department of Electrical Engineering, Inha University)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.30, no.8, 2017 , pp. 520-524 More about this Journal
Abstract
Electrical relay in an essential part of smart grids, electrical vehicles, and LED lightning systems. Therefore, studying relay reliability is important. Relays using permanent magnet actuators (PMAs), which are energy efficient, are also in the spotlight. However, most of the permanent magnets used in PMAs have a characteristic wherein the magnetic flux decreases as the temperature increases. When the magnetic flux is reduced, the force acting on the actuator is reduced. Therefore, in this study, we measured the decrease in the relay operating speed with permanent magnet reduction due to temperature rise. In addition, changes in the bouncing phenomena due to magnetic flux reduction were analyzed. As a result, the operating speed of the relay has decreased and the bouncing phenomenon has not significantly changed.
Keywords
Permanent magnet actuator; PMA; Latch relay; Bouncing phenomenon; Temperature; Zero-crossing;
Citations & Related Records
연도 인용수 순위
  • Reference
1 C. T. Chi, WSEAS Transactions on Electronics, 5, 313 (2008).
2 S. Fang, H. Lin, C. Yang, X. Liu, and J. Guo, Proc. 2007 International Conference on Electrical Machines and Systems (ICEMS) (IEEE, Seoul, Korea, 2007) p. 939.
3 Y. K. Ko, S. S. Cho, H. Huh, S. Y. Lee, H. T. Park, and I. S. Oh, Proc. 2009 IEEE International Symposium on Industrial Electronics (IEEE, Seoul, Korea, 2009) p. 169.
4 J. H. Kang, C. Y. Bae, and H. Jung, Proc. ICEMS 2003 (IEEE, Beijing, China, 2003) p. 100.
5 P. G. Slade, Electric Contacts: Principles and Application (CRC Press, New York, 1999) p. 464.
6 P. Barkan, IEEE Transactions on Power Apparatus and Systems, PAS-86, 231 (1967). [DOI: https://doi.org/10.1109/TPAS.1967.291840]   DOI