Journal of Electrical Engineering and Technology

The Korean Institute of Electrical Engineers (대한전기학회)
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Design and Analysis of an Accelerated Life Test for Magnetic Contactors

  • Published : 2007.06.01
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Abstract

Magnetic contactors (MCs) are widely used in industrial equipment such as elevators, cranes and factory control rooms in order to close and open the control circuits. The reliability of MCs mainly depend on mechanical durability and international standards such as IEC 60947-4-1, which stipulates the testing method for MCs. Testing time, however, is so long in usual cases that a method of reducing testing time is required. Therefore, a temperature and voltage-accelerated life testing (ALT) method has been developed to reduce the testing time in this work. The accelerated life test data are analyzed and acceleration factors (AFs) are provided.

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References

  1. Wayne Nelson, 'Accelerated Testing-Statistical Models' Test Plans, and Data Analyses, Ed. New York: John Wiley & Sons, 1990, pp. 63–4
  2. Anderson, Sweeney, Williams, 'Modern Business Statistics' Ed. Ohio: South-Western, 2003
  3. IEC International standard for Contactors and motor-starters-Electromechanical contactors and motor-starters (Standards style), IEC International Standard 60947-4-1, 2005
  4. H. S. Ryu, S. Y. Park, G. H. Han, Y. I. Kwon, N. S. Yoon, 'To Ensure A Product Reliability The Study on Accelerated Stress Tests for Magnetic Switch Used In Power Distribution System' in Proc. 36 th Summer Annu. Conf. KIEE, Korea, 2005, pp. 377-380

Cited by

  1. Novel Electromagnetic Actuator Using a Permanent Magnet and an Inter-Locking Mechanism for a Magnetic Switch vol.49, pp.5, 2013, https://doi.org/10.1109/TMAG.2013.2242432