Class / Patent application number | Description | Number of patent applications / Date published |
218046000 | Arcing chamber | 20 |
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 opens into a gas outlet channel for overpressure which is produced during the striking of the arc to escape from. A pressure sensor for pressure detection is provided in the gas outlet channel and trips a switching mechanism, which is at least indirectly connected thereto, of the switching device on reaching a predeterminable pressure value. According to at least one embodiment of the invention, the gas outlet channel includes a Venturi nozzle. A reduced pressure, which is created in the Venturi nozzle as the gas flow passes through, is detectable by way of the pressure sensor. | 08-06-2009 |
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 channel between the closed position and an open position. When an abnormal operating condition is detected, the circuit breaker trips causing the contact arm to move. This generates a plasma arc that evaporates material from the ablative device. The evaporated material generates a pressurized gas that cools and quenches the plasma arc to improve the performance of the circuit breaker during undesired operating conditions such as a short circuit. | 03-25-2010 |
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 (V | 12-30-2010 |
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 current is interrupted, the electrical contacts are separated and an arc discharge is produced in the arc extinguishing gas, and the current is interrupted by extinguishing this arc. The arc extinguishing gas is a mixed gas, the main constituents of which are N | 06-02-2011 |
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 being easily mounted to an assembled switchgear device. The current sensor can include an electro-optical fiber extending radially into the partition insulator and whose ends are embedded in recesses in the bus bar as well as in the metal embracing of the partition insulator for accurately integrating the voltage. | 06-23-2011 |
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 of a ferromagnetic material, and having two leg portions, a plurality of supporting protrusions laterally extending from the U-shaped plate portion to be flush with the U-shaped plate portion, thus to allow the U-shaped plate portion to be coupled to the supporting plates for support, and bent portions extending from the leg portions, respectively, by being bent in a perpendicular direction, to minimize an air gap between the adjacent arc grids stacked on each other so as to increase a force of inducing arc generated in the arc chamber toward the arc grids. | 01-12-2012 |
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 producible during an interruption process. The interruption chamber includes at least two inlets and at least one outlet located in between the two inlets. The inlets and the at least one outlet are connected with the arcing zone such that the electric arc is extinguishable in at least three arc interruption zones by means of extinguishing flows streaming out of the at least two inlets into the arcing zone upon pressurization and introduction of a portion of the extinguishing agent in the arcing zone, and leading an amount of the extinguishing flows through the outlet out of the arcing zone. | 02-16-2012 |
20140001157 | ELECTRONIC SWITCH | 01-02-2014 |
20140069891 | GAS CIRCUIT BREAKER - A gas circuit breaker includes a sealed tank that includes first and second conductor containers with an insulating tube therebetween and is filled with insulating gas; a fixed arcing contact on the first conductor container side; a movable arcing contact that is provided on the second conductor container side and moves to be able to contact and separate from the fixed arcing contact; a fixed conductive contact on the first conductor container side; a movable conductive contact that moves in accordance with contact and separation of the movable arcing contact and contacts and separates from the fixed conductive contact; and a puffer unit that is provided on the second conductor container side and has a mechanical puffer chamber accommodating the movable conductive contact formed therein, wherein the puffer unit is arranged between the insulating tube and the second conductor container and is exposed to the periphery of the sealed tank. | 03-13-2014 |
20150027985 | GAS CIRCUIT BREAKER - A gas circuit breaker includes a hermetically-sealed container filled with an arc extinguishing gas, a fixed contact arranged within the container, a movable contact arranged to face the fixed contact and configured to move in an axial direction of the container, the movable contact capable of contacting or separating from the fixed contact, an insulating operation rod having one end connected to an end of the movable contact opposite to the fixed contact through a link at an angle of about 90 degrees with respect to the movable contact, and an actuator arranged in a substantially coaxial relationship with the insulating operation rod, the actuator including an output shaft transferring a driving force for the operation of the movable contact to the other end of the insulating operation rod. | 01-29-2015 |
20150380188 | Gas Circuit Breaker - A gas circuit breaker includes, in a container filled with an arc extinguishing gas: a fixed-side main contact and a movable-side main contact separable from the fixed-side main contact; a fixed arcing contact ( | 12-31-2015 |
20160126038 | A PORTABLE SINGLE-PHASE AIR BYPASS SWITCH FOR LIVE POWER DISTRIBUTION NETWORK - The present invention provides a portable single-phase air bypass switch for live power distribution network, including a housing member, a positioning member, a conductive circuit member, a clutch member, a switch-closing member and switch-opening member. The housing member includes a main sleeve tube, an insulating sleeve pipe, a flange sleeve, and a bottom cover. The positioning member includes a positioning nut, positioning frames, and a positioning column. The conductive circuit member includes a conductive end cover, an upper conductive rod, a pressing sleeve, a coupling nut, a conductive sleeve pipe, a stationary contact, a movable contact, and a lower conductive rod. The clutch member includes a clutch, a clutch ring, and a clutch sleeve pipe. The switch-closing member includes a switch-closing energy-storage rod, a switch-closing energy-storage ring, a switch-closing spring, a switch-closing positioning pin, a switch-closing release ring, and an inner sleeve pipe. The switch-opening member include a small shaft, a switch-opening spring, a stopping block, a switch-opening energy-storage shaft, a connection rod, a switch-opening energy-storage pressing head, a switch-opening positioning pin, and a switch-opening release ring. The disclosed switch integrates fast-opening and fast-closing functionalities, and solves technical difficulties of instant arc-canceling on unloaded grid lines, power cables and mixed line and bypass line operations, the work coverage in live power distribution network can thus be improved with desired security. | 05-05-2016 |
20160133407 | Gas Circuit Breaker - A gas circuit breaker including a pair of main contacts is openable inside an insulating tank. A pair of arc contacts is arranged on the inner side of the main contacts, and a puffer cylinder has the main contacts and the arc contacts at an end. A puffer chamber is formed inside the puffer cylinder, and a puffer piston is provided on the inner periphery of the puffer cylinder. An insulating nozzle part is mounted on an end of the puffer cylinder to surround the arc contact. The insulating nozzle part includes a split nozzle base part and a split nozzle end part, and the split nozzle base part has a throat part. | 05-12-2016 |
20160172133 | CIRCUIT BREAKER | 06-16-2016 |
218047000 | Plural chambers | 6 |
20120168405 | Switchgear Device Having at Least One Single-Pole Breaking Unit Comprising a Contact Bridge and Circuit Breaker Comprising One Such Device - Switchgear device having at least one single-pole breaking unit, said unit comprising a movable contact bridge, a pair of stationary contacts operating in conjunction with said movable contact bridge and respectively connected to a current input conductor, and two arc extinguishing chambers respectively opening onto an opening volume of the contact bridge, and comprising a stack of at least two deionizing fins separated from one another by a gas exchange space. Each extinguishing chamber is connected to at least one quenching gas exhaust channel, said exhaust channels opening onto a line-side panel of the case of the breaking unit, said line-side panel being positioned opposite another load-side panel designed to be placed in contact with trip means. | 07-05-2012 |
20130020285 | GAS BLAST INTERRUPTER - A gas-insulated circuit interrupter is disclosed, the interrupter having an improved design for quenching electrical arcs. The interrupter includes a first contact and a second contact configured to alternatively connect to and disconnect from the first contact. One or both of the contacts are at least partially contained in an arcing chamber. The arcing chamber includes the point at which the contacts connect during current-carrying operation of the interrupter. The arcing chamber is at least partially surrounded by a heating chamber for accommodating a quenching gas. A channel connects the heating chamber and the arcing chamber and is positioned to direct the quenching gas toward the first contact and the second contact arcing area. One or more valves direct gas from the arcing chamber to the heating chamber when the interrupter is operated to interrupt a current. | 01-24-2013 |
20130161288 | GAS CIRCUIT BREAKER - A gas circuit breaker includes: a sealed tank filled with insulation gas; a pair of arc contacts that are arranged to face each other in the sealed tank and connectable and disconnectable with each other; a thermal puffer chamber that is provided on an outer circumferential portion of the pair of arc contacts; a mechanical puffer chamber that is provided on an outer circumference of the thermal puffer chamber and constituted by a cylinder formed in a toric shape centering around an axial line of the arc contacts; and a piston that is formed in a toric shape centering around the axial line and accommodated in the cylinder, and configured to move according to connection and disconnection of the arc contacts. | 06-27-2013 |
20130161289 | GAS CIRCUIT BREAKER - An arc extinguishing device of a gas circuit breaker includes: an arc chamber in which an arc generated between a movable electrode and a fixed electrode is formed; a heat puffer chamber disposed so as to surround the arc chamber; a blow port in which the arc chamber communicates with the heat puffer chamber in the circumferential direction of the arc chamber; hydrogen absorbents which are disposed on an inner wall of a pressure chamber; an exhaust port which passes to the outside of an arc extinguishing chamber; and a hydrogen absorbent disposed at a position surrounding the movable electrode. Deterioration of insulation due to a product formed by decomposition of arc extinguishing gas by the arc during a contact opening operation can be suppressed. | 06-27-2013 |
20160071672 | EXPANSION CHAMBERS FOR CIRCUIT BREAKERS - Embodiments include a circuit breaker having first and second electrical contacts, the contacts adapted to generate an electrical arc during separation, at least one of the first and second electrical contacts being a movable electrical contact. The circuit breaker also includes an expansion chamber disposed adjacent to at least one of the first and second electrical contacts such that an arcing space is defined by the first electrical contact and the second electrical contact when the first and second electrical contacts are separated. The expansion chamber includes an opening configured to permit air flow between the arcing space and a chamber of the expansion chamber. | 03-10-2016 |
20160141127 | DC VOLTAGE SWITCH FOR HIGH VOLTAGE ELECTRICAL SYSTEMS - A DC voltage switch for high-voltage on-board electrical systems having a housing, at least two stationary contacts, and a moving contact, wherein, in each case, a first contact region of the stationary contacts is routed out of the housing and, in each case, a second contact region of the stationary contacts is arranged in a switching chamber of the housing with the moving contact, wherein the housing is hermetically encapsulated, wherein a cooling chamber which is separated from the switching chamber by a partition wall is arranged above the switching chamber, wherein the partition wall has at least one outlet opening and at least one inlet opening. | 05-19-2016 |