Interlock apparatus of ground switch for vacuum circuit breaker
US8395064B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2010 |
| Grant date | Mar 12, 2013 |
| Priority date | — |
| Expiry date | May 24, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02B11/28
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided herein is an interlock apparatus for preventing the drawing-in or drawing-out of a vacuum circuit breaker main body in interlock with the ground operation of a ground switch in a vacuum circuit breaker, and the ground switch interlock apparatus of the vacuum circuit breaker comprising: a drive spindle; a movable plate movable to a manipulation handle connection allowance position or a manipulation handle connection prohibition position; a first interlock plate that moves the movable plate to the manipulation handle connection allowance position or the manipulation handle connection prohibition position; and a second interlock plate to be moved to a position for locking the first interlock plate at the manipulation handle connection prohibition position when the ground switch is at a ground position and a position for releasing from the restraint of the first interlock plate when the ground switch is not at the ground position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.