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| Number | Title | Issue Date |
| 8189323 | Gas-insulated switchgear apparatus A gas-insulated switchgear apparatus includes a center conductor 2, a current transformer 4 surrounding the center conductor 2, an electric field shield 5, and a metallic vessel 1. The electric field shield 5 is located betw... | 05/29/2012 |
| 8027152 | High-voltage switchgear assembly The invention relates to a gas-insulated high-voltage switchgear, comprising at least one bus bar with three phase conductors, whereby each phase conductor is connected to the input of a respectively provided bus bar section. The phase conductor and the bus bar sect... | 09/27/2011 |
| 8000087 | Gas insulated switchgear Each integral unit is structured by arranging partial units (I), (II), and (Ill) side by side, while line-side devices are branched from positions between the partial units adjacent to each other. Each of the partial units is structured by connecting a current trans... | 08/16/2011 |
| 7990688 | Gas-insulated switchgear A gas-insulated switchgear is provided, which can be made smaller and causes less increase in length in the circuit direction, by means of an improvement to the layout configuration of the operating rod of a bus-use grounding switch. Operating rods of bus-use ground... | 08/02/2011 |
| 7944680 | High-voltage switchgear A metal-encapsulated, gas-insulated high-voltage switchgear assembly includes a three-phase encapsulated busbar housing, at least one busbar disposed in the housing, and at least three single-phase-encapsulated circuit breakers disposed horizontally. The assembly fu... | 05/17/2011 |
| 7911770 | Gas insulated switchgear A power transmission/reception line circuit breaker includes a vertical-type first circuit breaker tank and a plurality of branch lead-out ports arranged at an interval H. A busbar-side device is connected to each branch lead-out port other than an uppermost branch ... | 03/22/2011 |
| 7903394 | Gas-insulated switchgear In a gas-insulated switchgear provided with three-phase main bus bars consisting of single-phase bus bars arranged in parallel with one another and three-phase circuit breakers that are arranged in parallel with one another in a direction perpendicular to the main b... | 03/08/2011 |
| 7813109 | Switchgear Switchgear having a vacuum-insulated switchgear 2 comprising switches having at least breaking and disconnecting functions, each placed in a unit, and solid-insulated bus bars 12 for electrically connecting the switches in each unit; an air-insulated s... | 10/12/2010 |
| 7764486 | Gas-insulated power apparatus A gas-insulated power apparatus comprising a vertically arranged gas-insulated circuit breaker included in a vertically arranged gas-insulated main tank, a first gas-insulated branch pipe connected to one side of an upper portion of the gas-insulated main tank subst... | 07/27/2010 |
| 7675738 | Gas insulated switchgear A gas insulated switchgear has: circuit breakers, circuit breaker vessels, first disconnector and maintenance earthning switches connected to first bus bars connected to circuit breaker vessels and also to main bus bars, second disconnector and maintenance earthning... | 03/09/2010 |
| 7515398 | Gas-insulated switchgear assembly In a one-and-a-half circuit breaker system gas-insulated switchgear assembly for three-phase AC transmission, the circuit breakers are located on a common horizontal floor directed in Y direction. First main bus bars extending in X direction are located above the fi... | 04/07/2009 |
| 7417846 | Gas-insulated switchgear For simple structure and easy manufacture, module tanks have a common standardized size so that the same tank is applicable even when the components to be accommodated are changed. The basic structure of the module is arranged so that all of the interrupter, the dis... | 08/26/2008 |
| 7417847 | Compact current transformer casing for gas-insulated switchgear assemblies The invention pertains to a current transformer (1′) for enclosed, gas-insulated high-voltage switchgear (10). According to the invention, a current transformer (1′) is characterized in that a removable installation flange (12, 12′)... | 08/26/2008 |
| 7414827 | Gas-insulated switchgear device Disclosed is a gas-insulated switchgear device, in which a space for dismantlement and inspection work which facilitates the dismantlement and inspection work of circuit breakers at the time of the occurrence of accidents of the circuit breakers are provided and an ... | 08/19/2008 |
| 7391605 | Encapsulated gas-insulated switchgear assembly The switchgear assembly has a polyphase design and has a gas-filled, modular encapsulation for each phase. Provided as the modules are at least one busbar, which is guided predominantly horizontally, a circuit breaker and two combined disconnecting-earthing switches... | 06/24/2008 |
| 7158369 | Single phase or polyphase switchgear in an enveloping housing Single phase or polyphase switchgear having one or more switches which are mounted with the aid of solid insulation such that they are insulated, as well as associated live components such as rail systems, connectors and the like. Both the switches and the associate... | 01/02/2007 |
| 7130172 | Switchgear and receiving transformation apparatus using the same A switchgear having a primary circuit breaker and a secondary circuit breaker respectively arranged on the primary side and secondary side of a load switch or a voltage and current transformer for an instrument, a primary grounding switch arranged between the load s... | 10/31/2006 |
| 7095606 | Electric switchgear with an enclosed design The aim of the invention is to prevent an unwanted conduction of a flow of gas inside a channel that connects an inner space of an enclosed switchgear (1) to another space. To this end, the channel is closed by means of a closing mechanism according to an inc... | 08/22/2006 |
| 7075778 | Hybrid gas-insulated switchgear A hybrid gas-insulated switchgear constitutes an electrical circuit for a single-line diagram unit by arranging one first standardized module and two second standardized modules in a single row such that the central axes of tanks are generally aligned and electrical... | 07/11/2006 |
| 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 |
| 6865072 | Metal-enclosed switchgear A tank filled with an insulating gas accommodates insulator tubes incorporating vacuum-valve breakers for individual phases. One end of each insulator tube is fixed to the inside of the tank. Each vacuum-valve breaker is installed generally on a common longitudinal ... | 03/08/2005 |
| 6771489 | High voltage hybrid station with opposite busbars and shielded cutoff and switching modules for same The invention provides a “hybrid” high voltage multiphase distribution substation having one or more sets of busbars including at least one air-insulated set of busbars (10), the substation having feeders (A, B, C, D) for air-insulated lines (21, 22 | 08/03/2004 |
| 6727454 | Gas-insulated switchgear A gas-insulated switch gear has a plurality of bay units having bus ducts each containing a three-phase bus and connected by bellows expansion joints. When the bay unit needs to be inspected for maintenance, the bellows expansion joints are compressed, and only the ... | 04/27/2004 |
| 6664493 | Gas-insulated switchgear A gas-insulated switchgear of an 11/2 CB system, in which three circuit breakers are electrically connected in series between a pair of buses and a connecting line for supplying and receiving electric power is led out from between the circuit breakers, is... | 12/16/2003 |
| 6646861 | Gas insulated switchgear In a gas-insulated switching device capable of reducing the physical installation space while suppressing the installation height of the device, busbar connecting lines are disposed perpendicularly to and between as pair of main busbars to connect the mai... | 11/11/2003 |
| 6631075 | Switchgear The instrumentation transformers 6a to 6d and 7a to 7f for measuring the voltage of the main circuit are arranged within the container 15b located in the midst of the containers 15a to 15c. In the present invention, the containers 15a and 15b are linked b... | 10/07/2003 |
| 6614648 | Bus line conductor container and gas insulated switchgear device using the same In a gas insulated switchgear device, a phase transposing unit for bus line conductors is provided in a bus line tank without providing a separate bus line extending unit. A bus line container includes a plurality of tanks connected in a straight line sha... | 09/02/2003 |
| 6560091 | Gas insulated switchgear In order to shorten the length of connection buses and reduce a cost, in the present invention, a plurality of T-branched circuit breaker units 12 are arranged in a direction perpendicular to the T-branch direction, and the plurality of circuit breaker un... | 05/06/2003 |
| 6556428 | Gas insulated switchgear A gas insulated switchgear includes a plurality of T-branched circuit breaker units arranged in a direction perpendicular to the T-branch direction, and connected by first connection bus units and second connection bus units in series alternately in a rec... | 04/29/2003 |
| 6538877 | Gas insulation switch To provide a gas insulation switch reducing the SF6 gas use amount without damaging the insulation performance and arc extinguishing performance, the present invention uses SF6 gas as insulating gas to be charged in the grounding tan... | 03/25/2003 |
| 6510046 | Gas-insulated switchgear A gas-insulated switchgear comprising a gas-insulated first hermetic vessel, at least one electric device selected from a group consisting of an interrupter, a disconnector, a grounding switch and a load switch contained within the hermetic vessel. The sw... | 01/21/2003 |
| 6459569 | Switchgear The instrumentation transformers 6a to 6d and 7a to 7f for measuring the voltage of the main circuit are arranged within the container 15b located in the midst of the containers 15a to 15c. In the present invention, the containers 15a and 15b are linked b... | 10/01/2002 |
| 6445569 | Gas-insulated switchgear A gas-insulated switchgear provided with a resin mold bushing for supporting and insulating a main circuit conductor from a ground tank is miniaturized. A container portion 3a is formed by opening an end inside of the tank of a resin mold bushing 3 for su... | 09/03/2002 |
| 6407336 | Device for carrying high currents at a low inductance, in particular for a power converter or the like A device for carrying high currents at a low inductance, in particular for a power converter or the like, is provided with two flat electrical conductors which are arranged roughly parallel to each other and are spaced apart from each other. The space bet... | 06/18/2002 |
| 6407908 | Gas-insulated circuit breaker and gas-insulated switch-gear having the same In order to provide a good gas-insulated circuit breaker which is compact and easy in assembling and preparation, a gas-insulated circuit breaker 100 is constructed with a grounded enclosure 104 enclosed a insulation nature gas, a current interruption par... | 06/18/2002 |
| 6399911 | Gas insulated switchgear apparatus A gas insulated switchgear of the present invention, a plurality of disconnect switches are provided on a line connecting a bus line to a circuit-breaker in such a manner as to be arranged in both a main bus unit, a breaker unit or in both a first and sec... | 06/04/2002 |
| 6373687 | Gas insulation switch To provide a gas insulation switch reducing the SF6 gas use amount without damaging the insulation performance and arc extinguishing performance, the present invention uses SF6 gas as insulating gas to be charged in the grounding tan... | 04/16/2002 |
| 6292356 | Gas insulation switch A gas insulation switch has a container charged with insulating gas which contains an electric conductor and at least a pair of contactors. The container is divided into a plurality of sections. For the sections which have no switching devices or separabl... | 09/18/2001 |
| 6219225 | Gas insulated switch gear and method for assembling therefor A gas insulated switch gear has a main bus unit, a circuit breaker unit and a line unit. The line unit has a top plate with a hole through which a potential transformer is inserted into the inside of the line unit and an adapter cover fixed to the potenti... | 04/17/2001 |
| 6134101 | Gas-insulated, metal-enclosed switchgear assembly The gas-insulated, metal-enclosed switchgear assembly contains two, three or more switchpanels, each having a multipole power breaker (CB1, CB2, CB3, CB4) as well as isolating and grounding switches per switch p... | 10/17/2000 |
