Gas insulated switchgear
AssigneeLsis Co., Ltd.
InventorJong Hyuk Lee
Life of this patent
Estimating the term…
Abstract
A gas insulated switchgear includes: an upper conductor; a lower conductor; a movable contact provided in the upper conductor; a fixed contact fixedly provided in the lower conductor; a moving side tulip contact provided in the movable contact; a moving side shield fixed to the upper conductor; a fixed side tulip contact provided in the fixed contact; a fixed side shield fixed to the lower conductor; and an insulating screen unit installed to selectively block the opening end of the moving side shield and covering an end of the movable contact when the movable contact is separated from the fixed contact.
Claims15
A gas insulated switchgear comprising:
- an upper conductor;
- a lower conductor;
- a movable contact provided in the upper conductor such that it is movable linearly with respect to the upper contact;
- a fixed contact fixedly provided in the lower conductor;
- a moving side tulip contact provided in the movable contact;
- a moving side shield fixed to the upper conductor, accommodating the moving side tulip contact, and having an opening end allowing the movable contact to pass therethrough;
- a fixed side tulip contact provided in the fixed contact and selectively connected to the moving side tulip contact by the movable contact;
- a fixed side shield fixed to the lower conductor and accommodating the fixed side tulip contact;
- and
- an insulating screen unit installed to selectively block the opening end of the moving side shield and covering an end of the movable contact when the movable contact is separated from the fixed contact.
A gas insulated switchgear comprising:
- a moving side tulip contact provided in a movable contact;
- a moving side shield accommodating the moving side tulip contact and having an opening end allowing the movable contact to pass therethrough;
- a fixed side tulip contact provided in a fixed contact and selectively connected to the moving side tulip contact;
- a fixed side shield accommodating the fixed side tulip contact;
- an insulating screen rotatably coupled to the moving side shield and blocking the opening of the moving side shield;
- a push link slidably coupled to the insulating screen and provided within the moving side shield to rotate the insulating screen within a certain range;
- and
- a constraint pin provided to be selectively inserted into a lateral surface of the movable contact and selectively restraining a movement of the push link.
A gas insulated switchgear comprising:
- a moving side tulip contact provided in a movable contact;
- a moving side shield accommodating the moving side tulip contact and having an opening end allowing the movable contact to pass therethrough;
- a fixed side tulip contact provided in a fixed contact and selectively connected to the moving side tulip contact;
- a fixed side shield accommodating the fixed side tulip contact;
- an insulating screen rotatably coupled to the moving side shield such that it is pushed by the movable contact to open the opening end of the moving side shield;
- and
- a return spring coupled between the moving side shield and the insulating screen and providing an elastic force to the insulating screen to block the opening end of the moving side shield when the movable contact is returned into the moving side shield.
Dependencies are inferred from the claim text.