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| Number | Title | Issue Date |
| 7310221 | Switching installation provided with an electrically insulating barrier A switching installation (5) having a circuit breaker (12), which is connected to a cable connection (33), and optionally a disconnector (14) for making or breaking a conductive connection between the cable connection (33) and a ra... | 12/18/2007 |
| 7303982 | Plasma immersion ion implantation process using an inductively coupled plasma source having low dissociation and low minimum plasma voltage A method for implanting ions in a surface layer of a workpiece includes placing the workpiece on a workpiece support in a chamber with the surface layer being in facing relationship with a ceiling of the chamber, thereby defining a processing zone between the workpi... | 12/04/2007 |
| 7289309 | Isolation apparatus The apparatus is intended for disconnection of a live electrical conductor and has an enclosure (3) and two power connections (1, 2) which are passed out of the enclosure (3). A conductor section (7) which connects the two power connectio... | 10/30/2007 |
| 7193172 | Gas-insulated switchgear tank In a gas-insulated switchgear tank in which an electric insulating characteristic is improved by a gas, and which has a vacuum circuit-breaker, a disconnecting switch, and a container in which container the vacuum circuit-breaker and the disconnecting switch are arr... | 03/20/2007 |
| 7122758 | Insulated earthing switch for gas-insulated switchgear assemblies An insulated earthing switch for encapsulated, gas-insulated high-voltage switchgear assemblies is characterized in that an encapsulation-side earthing switch contact, a measuring electrode and an earthing switch housing are arranged altogether on a single earthing ... | 10/17/2006 |
| 7119652 | Method of avoiding arc prolongation on current interruption, particulary a fuse A fuse assembly is disclosed. The fuse assembly includes an electrically insulating hollow casing of a substantially rectangular parallelepiped shape in outline, a fuse element provided within the casing and supported by the casing, the casing having first and secon... | 10/10/2006 |
| 7102101 | High voltage circuit breaker with internal tank heater A high voltage circuit breaker with a gas-insulated tank is provided. Enclosed with the tank is an elongated heater having at least one heating element enclosed in an outer tube. The heater is located coaxially within the tank and is surrounded by the insulating gas... | 09/05/2006 |
| 7053327 | Apparatus and method for use in circuit interrupters The present invention provides improved and more efficient methods and apparatus for maintaining and/or adjusting over-travel gaps and contact wipe portions in operating rod assemblies of circuit interrupters. According to one embodiment of the invention, a circuit ... | 05/30/2006 |
| 7053326 | Integrated type gas-insulated switching apparatus In an integrated type gas-insulated switching apparatus, a plurality of switching devices are provided. Each of switching devices includes a contact and an insulated container in which the contact is contained. The contact comprises electrodes adapted to be contacte... | 05/30/2006 |
| 7038157 | Vacuum circuit breaker with coaxial coil for generating an axial magnetic field in the vicinity of the contact members of the circuit breaker Vacuum circuit breaker, provided with a casing, in which a fixed and movable contact member are each attached to a supporting contact rod and supported therein in a mutually electrically isolated manner, and a coil coaxial to the casing and surrounding the contact m... | 05/02/2006 |
| 6930270 | Connection area between housing parts of a vacuum interrupter, and a vacuum interrupter having a connection area of this type The aim of the invention is to optimize, in vacuum interrupters, the connection area (12, 13, 14) between housing parts (2, 3, 4, 5), which are coaxially assigned to one another, with regard to the complexity of production for centering measures and wi... | 08/16/2005 |
| 6603088 | Pressurized gas circuit-breaker pole that can be assembled and disassembled without significant loss of gas A pressurized gas circuit-breaker pole includes a first enclosure or pole head having a first envelope with a first connecting flange including a circular orifice. The envelope contains a first mobile assembly terminating in a coupling member coaxial with... | 08/05/2003 |
| 6504125 | Gas-filled switching apparatus A gas-filled switching apparatus has a gas-filled sealed container having a container body with a neck which surrounds an opening and a flange which extends outwards from the neck. A cover is disposed on the flange to cover the opening, and a gasket is di... | 01/07/2003 |
| 6444937 | Gas-insulated switching device An interruption and disconnecting device for high or medium voltage applications including a disconnection chamber and an interruption pole having a casing that delimits a free volume accommodating an interruption chamber. The interruption chamber contain... | 09/03/2002 |
| 6429393 | Current transfer arrangement for circuit interrupter A current transfer arrangement is provided for a circuit interrupter that provides support for the contacts of the circuit interrupter and also provides current transfer between the contacts of the circuit interrupter and the external circuit terminal con... | 08/06/2002 |
| 6337452 | Gas insulated switchgear with flange-spacer assembly A gas insulated switchgear includes a bus unit, a breaker unit and a line side unit. An insulating spacer structure attaching at least two of the units together includes an inner flange on a first unit, an outer flange on a second unit, and an insulating ... | 01/08/2002 |
| 6307172 | Circuit breaker with particle trap A circuit breaker is provided having a particle trap within an interior gas-insulation cavity containing a contact mechanism. The interior cavity is defined within a tank. In an embodiment, the tank has a generally cylindrical tank wall, and the trap is a... | 10/23/2001 |
| 6188034 | Gas insulated switchgear with flange-spacer assembly A gas insulated switchgear includes a bus unit, a breaker unit and a line side unit. An insulating spacer structure attaching at least two of the units together includes an inner flange on a first unit, an outer flange on a second unit, and an insulating ... | 02/13/2001 |
| 6127641 | High-voltage switchgear An attachment of high-voltage lead-in insulators (1, 1') on enclosure housings (1, 1') using elbow-shaped additional housings which have rotary joints to allow the insulators to rotate in order to maintain a connection distance.... | 10/03/2000 |
| 6107591 | Gas-insulated high-voltage component with transport support A gas-insulated power breaker (1) has encapsulation (2) which is filled with an inert gas. Live parts (10, 11, 12, 13) are arranged in the encapsulation (2). In order to prevent damage to the live parts (10, 11, 12, 13) during transportation, a transport ... | 08/22/2000 |
| 5892194 | Sealed contact device with contact gap adjustment capability A sealed switch has a vessel defining therein a hermetically sealed space which receives a pair of fixed contacts and a movable contact bridging the fixed contact. The movable contact is movable between an ON-position of closing with the fixed contact and... | 04/06/1999 |
| 5821495 | Gas circuit breaker A gas circuit breaker includes a case body in which an insulating gas is enclosed, a stationary contact part accommodated in the case body and equipped with tulip type stationary contact members, and a movable contact part having a movable contact member.... | 10/13/1998 |
| 5736704 | Circuit-breaker with grounded metal enclosure A grounded metal enclosure circuit-breaker comprises, for each pole, a metal enclosure having two insulative bushings. The enclosure and the bushings are adapted to be filled with insulative gas. The enclosure contains first and second metal supports and ... | 04/07/1998 |
| 5723839 | Gas circuit breaker A gas circuit breaker having a single supporting structure easy to be inspected. The gas circuit breaker includes: a grounded tank in which a gas is enclosed; a fixed contact contained in the tank; a moving contact contained in the tank and electrically c... | 03/03/1998 |
| 5670767 | Gas-insulated switchgear with improved insulation joint A gas-insulated switchgear in which a washer 5 is electrically connected with a tank 1 by a conductive material 12 having a high resistivity at a position where the tank 1 and a tank 2 are joined through an insulator 13 of the gas-insulated switchgear. In... | 09/23/1997 |
| 5591948 | Vacuum cartridge, notably for a medium voltage electrical cicuit breaker or switch and a switch incorporating such a cartridge A vacuum cartridge for a medium voltage electrical switch, as well as a switch incorporating such a cartridge comprising an enclosure closed by two end-plates in which there are housed three contacts extending axially. Two of these contacts are stationary... | 01/07/1997 |
| 5578805 | Metal-enclosed gas-filled switchgear units A metal-enclosed, gas-filled switchgear unit has at least two busbar systems and a circuit breaker which respectively has per pole a pole axis and at least one arcing chamber built into a pole housing constructed as a metal enclosure. The pole axes are ar... | 11/26/1996 |
| 5578804 | Metal-enclosed gas-insulated switching installation A metal-enclosed, gas-insulated switching installation includes at least two busbar systems and a circuit breaker. Each circuit breaker is in the form of a pole having a pole axis and at least one extinction chamber, installed in a pole housing. The pole ... | 11/26/1996 |
| 5534673 | Electric high-voltage circuit breaker A high-voltage circuit breaker has a metallic housing. The contact member assembly is held by insulating supports, and has a fixed contact member and a movable contact member. The movable contact member is capable of being driven via an operating lever by... | 07/09/1996 |
| 5495084 | Slip-through mounting structure for circuit interrupter The movable contact of a puffer interrupter contains a movable conductive tubular sleeve which is electrically connected to and is slidably mounted within a hollow conductive adapter which is supported from the end of a bushing insulator. An insulation ro... | 02/27/1996 |
| 5469050 | High-voltage measurement device A high-voltage measurement device for an electrical high-voltage switchboard plant having an measurement electrode built into an encapsulating housing, as well as an electrical conductor which conducts a measurement signal provided by the measurement elec... | 11/21/1995 |
| 5436797 | Modular station of the metal-clad type and of reduced size, with a shortened set of busbars A metal-clad modular power-supply station comprising a main set of busbars interconnecting at least two pairs of components, such as overhead feedthroughs or cable boxes, in an H-station configuration. The components are connected together in pairs by res... | 07/25/1995 |
| 5420384 | Contact material for a vacuum interrupter A contact material for a vacuum interrupter includes: (a) from 25 to 70% by volume of a highly conductive component selected from the group consisting of Ag, Cu and combinations thereof, and (b) from 30 to 75% by volume of an arc-proof component comprisin... | 05/30/1995 |
| 5269055 | Method of assembling a circuit-breaker pole In the course of the assembly of a circuit-breaker pole, the individual parts of a housing are stacked loosely one on top of the other and fixedly positioned. This fixing can be accomplished by applying subatmospheric pressure or a partial vacuum within t... | 12/14/1993 |
| 5142440 | Metal-clad, compressed gas-insulated high voltage structure In the case of the metal-clad, compressed gas insulated high voltage structures, housings (1,7), whose longitudinal axes are positioned at angles to each other, must often be interconnected by way of an intermediate part (8). Two facility abutting rings (... | 08/25/1992 |
| 4996485 | Gas insulated switch device Disclosed is a gas insulated switch device comprising at least two hollow cylindrical containers each accommodating top end portions of a system of line cables, and a disconnector having contacts coupled to the line cables via detachable conductors, where... | 02/26/1991 |
| 4943795 | Oxide resistor A composite sintered oxide resistor comprising crystal grains of zinc oxide and crystal grains of a zinc oxide compound of other metal or semi-metal element than zinc, and a grain boundary layer having an electric resistance equal to or lower than that of... | 07/24/1990 |
| 4920242 | Electric high-voltage circuit breaker In an electric high-voltage circuit breaker with a hydraulic drive, the piston rod, going through a seal, is brought out of the hydraulic cylinder in order to actuate the movable contact via a reversing gear and a switching rod. The piston rod is arranged... | 04/24/1990 |
| 4839482 | Gas-blast breaker The gas-blast breaker exhibits two contact members (1, 2) which are located in a housing filled with insulating gas and can be brought into and out of engagement with one another along an axis (5), and an insulating material nozzle (4) through the nozzle ... | 06/13/1989 |
| 4835648 | Gas insulated switchgear A gas insulated switchgear includes a hermetic vessel for containing therein a switching apparatus and an electrically insulating gas for insulating the switching apparatus. An electric arc detector disposed on the hermetic vessel detects an electric arc ... | 05/30/1989 |
