Electric switching device
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United States of America Patent
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Feb 11, 2003
Grant Date -
N/A
app pub date -
Feb 26, 2002
filing date -
May 3, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electric switching device for fast closing of a high current in a power network comprising a first electrode (1), a second electrode (2), a movable contact element (3) closing said first and second electrodes, and an operating device. The operating device comprises a helically wound first coil (6) secured to the first electrode. The movable contact element comprises a flange (4) making contact with the coil. A current pulse flowing through the coil forms a repulsive force between the coil and the flange, said repulsive force throwing the movable contact element to the second electrode and completing the closing operation.
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