Patent ID: 6911610
Filing Date: 2005-06-28
Classification: H01H,H02H

Abstract:
1. A medium voltage switching device comprising: at least a movable contact and a fixed contact which are electrically connected to a phase conductor of a medium voltage power distribution line and are suitable for being coupled/uncoupled respectively during a closing/opening operation of said medium voltage switching device; and an electromagnetic actuation chain for actuating said movable contact, said electromagnetic actuation chain comprising an electromagnetic actuator and a kinematic chain, for operatively connecting said electromagnetic actuator to said movable contact; and power supply means for providing electric power to said electromagnetic actuation chain; wherein said power supply means comprise at least a first power supply device which is electrically connected to said medium voltage power distribution line, said first power supply device comprising first circuit means for draining electric power directly from said medium voltage power distribution line and second circuit means for storing at least the electric energy drained from said medium voltage power distribution line, and for providing said electromagnetic actuation chain with a power supply.