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(11) | EP 2 172 956 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | A mechanism for the synchronized operation of closing and opening of a switching device and a selector device in a switchgear. |
(57) The present invention discloses a 4-position mechanism for the synchronized operation
of closing and opening of a vacuum bottle switching device and a selector device.
The synchronized operation is achieved with the help of interlock arrangements. Each
of the vacuum bottle switching device and the selector device comprise separate energy
storage and releasing means. Energy is loaded into both the devices by the user input
with the help of dedicated levers. The movement in the output shafts is observed only
after the dead point has been reached. Any movement from dead point to the main output
shaft is transmitted through articulated levers. In the vacuum bottle switching device,
conversion of energy makes the main shaft translate in one direction to close the
switch and also, stores energy for translation of the shaft in opposite direction
to open the switch. Said interlock arrangements are configured such that upon insertion
of a removable handle into an accessible handle receptor (33,14,38) of any one of
the selector operating means, switching device operating means or earth operating
means, the access to the remaining operating means is blocked.
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