Electric switch having an electromagnetic actuator
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United States of America Patent
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Jan 16, 2018
Issued Date -
N/A
app pub date -
Apr 1, 2015
filing date -
Apr 29, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A method is disclosed for operating an electric switch having at least one movable switch contact, movable by a movable armature of an electromagnetic actuator to switch the switch on and off, a spring device arranged between the movable switch contact and the armature and, in order to move the armature from a starting position to an armature end position, a magnetic flux being generated in an exciter winding of the actuator by an exciter current being fed into the exciter winding. According to an embodiment and taking into account a position data set which specifies the respective armature position as a function of magnetomotive values and flux values, an armature position—called the contact strike armature position below—is determined at which the switch contacts meet each other during the closing operation, before the armature reaches the armature end position.
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