Electromagnetic actuator with under voltage release
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United States of America Patent
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Jul 7, 2015
Grant Date -
Nov 21, 2013
app pub date -
Dec 15, 2011
filing date -
Dec 15, 2010
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Abstract
An electromagnetic actuator has a yoke for guiding a magnetic flux, and a holding plate attached to an actuating member, the holding plate and yoke forming a first magnetic circuit. Furthermore a magnetic flux generation device is provided for generating a magnetic flux in the first magnetic circuit. The magnetic flux generation device has an under voltage release coil electrically connected to an auxiliary voltage source representing the value of a voltage to be monitored.
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