Gas-insulated switch
AssigneeHitachi, Ltd.
InventorsHideo Kawamoto, Kenichi Okubo, Tetsu Ishiguro
Life of this patent
Estimating the term…
Abstract
To reduce the size of a gas-insulated switch for the purpose of utilizing the space of a power station or substation effectively and improving the economy thereof. A gas-insulated switch equipped with a fixed contact and a moving contact that can contact with and separate from the fixed contact, wherein the breakage of the moving contact is operated with a single shock absorber in both the breaking action and the closing action of the moving contact. As a result that use of the gas-insulated switch according to the present invention improves the overall energy efficiency of components, a device with further reduced driving energy can be realized for a gas-insulated switch of the same specification.
Claims9
A gas-insulated switch equipped with;
- a breaking section comprising a fixed contact and a moving contact that can contact with and separate from the fixed contact, both installed in a ground vessel filled with insulation gas;
- an operating device comprising a closing operation section that closes the fixed and moving contacts of the closing section and a breaking operation section that breaks the contacts;
- and
- a shock absorber that absorbs the shock on the two contacts in the closing and breaking operations of the operating device;
- the shock absorber being installed in the breaking section of the operating device;
- and the shock absorber absorbing the shock in both closing and breaking operations.
A gas-insulated switch equipped with;
- a breaking section comprising a fixed contact and a moving contact that can contact with and separate from the fixed contact, both installed in a ground vessel filled with insulation gas;
- an operating device comprising a closing operation section that closes the fixed and moving contacts of the closing section and a breaking operation section that breaks the contacts;
- and
- a shock absorber that absorbs the shock on the two contacts in the closing and breaking operations of the operating device;
- the breaking operation section of the control unit being equipped with a breaking spring;
- the shock absorber being installed in the breaking spring;
- and the shock absorber absorbing the shock in both closing and breaking operations.
A gas-insulated switch equipped with;
- a breaking section comprising a fixed contact and a moving contact that can contact with and separate from the fixed contact, both installed in a ground vessel filled with insulation gas;
- an operating device comprising a closing operation section that closes the fixed and moving contacts of the closing section and a breaking operation section that breaks the contacts;
- and
- a shock absorber that hydraulically absorbs the shock on the two contacts in the closing and breaking operations of the operating device;
- the shock absorber adjusting the shock in the closing and breaking operations by adjusting the hydraulic pressure;
- and the shock absorber absorbing the shock in both closing and breaking operations.
A gas-insulated switch equipped with a fixed contact and a moving contact that can contact with and separate from the fixed contact;
- wherein
- there are provided a shock absorber that brakes the moving contact in the breaking action and closing action of the moving contact, and
- an output lever that is linked with the moving contact;
- the shock absorber being installed at a position in either of the moving directions of the output lever.
Dependencies are inferred from the claim text.