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| Application No. | Application Title | Issue Date |
| 20120037599 | CIRCUIT BREAKER An exemplary high voltage circuit breaker includes an interruption chamber that is filled with an extinguishing agent. The interruption chamber having at least two separable arcing contact pieces that are coaxially arranged and an arcing zone in which an electric arc is... | 02/16/2012 |
| 20120006791 | ARC EXTINGUISHING MECHANISM FOR MOLD CASED CIRCUIT BREAKER An arc extinguishing mechanism for the mold cased circuit breaker comprises a plurality of arc grids stacked on one another in a perpendicular direction and supporting plates for supporting the arc grids, and each of the arc grids comprises a U-shaped plate portion made... | 01/12/2012 |
| 20110147346 | GAS-INSULATED SWITCHGEAR DEVICE WITH OPTICAL CURRENT SENSOR An exemplary gas-insulated switchgear device is disclosed which includes a current sensor and a voltage sensor located at a partition insulator. The current sensor can include a magneto-optical fiber on a flexible carrier strip and can be manufactured separately for bei... | 06/23/2011 |
| 20110127237 | GAS INSULATED SWITCHGEAR Disclosed is a gas insulated switchgear constituted such that electrical contacts are placed inside a sealed vessel filled with an arc extinguishing gas, and when electrical current passes, the electrical contacts are held in contact and pass electricity, and when the c... | 06/02/2011 |
| 20100326958 | RELIEF VALVE FOR DISCHARGING A DIELECTRIC GAS BETWEEN TWO VOLUMES OF A HIGH-VOLTAGE OR MEDIUM-VOLTAGE INTERRUPTING CHAMBER A relief valve for discharging a dielectric gas between two volumes (V1, V2) of a high-voltage or medium-voltage interrupting chamber. There is used as a closure member a flexible metal blade secured to the body, the closure member therefore being opened b... | 12/30/2010 |
| 20100072174 | CIRCUIT BREAKER WITH IMPROVED ARC QUENCHING A circuit breaker having an arc quenching system is provided. The quenching system includes an ablative device positioned within a chamber. On end of the ablative device includes an opening that receives a stationary contact. A movable contact arm travels within a chann... | 03/25/2010 |
| 20090194510 | Switching device, in particular power switching device The switching device of at least one embodiment includes at least two switching contacts for interruption of a current path, with the switching contacts being arranged in a quenching chamber in order to quench an arc which is struck on opening. The quenching chamber ope... | 08/06/2009 |
