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Electromagnetic Analysis of a Shading Ring Type AC Solenoid  

Yang, Hyong-Yeol (지오토(주))
Publication Information
The Transactions of the Korean Institute of Electrical Engineers P / v.58, no.2, 2009 , pp. 158-163 More about this Journal
Abstract
A shading ring in an AC solenoid plays an important role in reducing vibration and humming sound. Estimation of performance of the shading ring placed in a stator pole of the AC solenoid is not an easy task due to the difficulty in measurement of the current and flux linkage of the shading ring. In this paper, dynamic performance of an AC solenoid with a shading ring is analyzed through the simulation using electromagnetic analysis software and the results are verified by simple AC and DC voltage tests. Both the simulation and experimental results show that the shading ring in the AC solenoid not only increases pull force, but also reduces operation time, vibration and humming sound.
Keywords
Solenoid; Shading Ring; Electromagnetic Analysis; Vibration; Humming Sound;
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