Class 218/51 - With gas flow means

Subclass of Class 218 - High-voltage switches with arc preventing or extinguishing devices
Definition: Subject matter including means defining a confined channel
No. of applications: 4
Last issue date: 06/30/2011

Application No.	Application Title	Issue Date
20110155695	HIGH-VOLTAGE POWER SWITCH WITH A SWITCH GAP A high-voltage power switch has a switch gap surrounded by a nozzle made of insulating material. The nozzle of insulating material is formed with a switching gas channel. The switching gas channel opens up into a storage volume. A flow steering apparatus is disposed wit...	06/30/2011
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
20110056915	VALVE FOR GAS CIRCUIT BREAKER AND GAS CIRCUIT BREAKER WITH THE SAME Disclosed are a valve for a gas circuit breaker, and a gas circuit breaker having the same. The gas circuit breaker comprises a cylinder constituting appearance of the gas circuit breaker, and providing a gas flow path therein, a partition plate having passing holes, an...	03/10/2011
20100219161	GAS-INSULATED HIGH-VOLTAGE CIRCUIT BREAKER WITH A RELIEF DUCT WHICH IS CONTROLLED BY AN OVERFLOW VALVE A high-voltage circuit breaker includes two arcing contacts, which are capable of moving relative to one another along an axis, an insulating nozzle, a heating volume for accommodating quenching gas, a heating channel, and an overpressure valve. The pressure of the quen...	09/02/2010

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