Interlock apparatus for vacuum circuit breaker
US8710390B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 13, 2012 |
| Grant date | Apr 29, 2014 |
| Priority date | — |
| Expiry date | Dec 14, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H33/666
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An interlock apparatus for a vacuum circuit breaker includes a pair of hindering units configured to allow or prevent a motion of a breaker body to an connection position or a disconnection position; a pair of first interlock bars configured to change a width of the breaker body to be greater than the predetermined spacing distance of the hindering units in a first position where the first interlock bars are spaced from each other, or to change the width of the breaker body to be smaller than the predetermined spacing distance; and a second interlock bar vertically movable to an up position and a down position, the up position for moving the first interlock bars to the first position, and the down position for returning the first interlock bars to the second position by being separated from the interposed position between the first interlock bars.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.