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8913370 Switchgear spout design  
A spout assembly is provided. The spout assembly includes a spout and a spout base. The spout base has a cross-sectional area that is smaller than a spout sized to enclose an electrical switching...
8895884 Tank type vacuum circuit breaker  
A tank type vacuum circuit breaker uses a columnar or cylindrical insulation rod at a connection portion between an operating mechanism unit and a vacuum valve. The insulation rod is connected to...
8885327 Switchgear  
A switchgear having an electrified conductor accommodated in a tank in which insulating gas is contained includes a fixed contact connected to the electrified conductor, a movable contact...
8847095 High-voltage switching device  
A high voltage switching device includes a current interruption assembly having at least one vacuum chamber, a fixed contact assembly having a first fixed contact and a second fixed contact...
8785801 Dual structured contact for switchgear and switchgear having the same  
Provided is a dual structured contact for switchgear, which includes a moving contact unit being formed of a conducting material, the moving contact unit including first and second terminals, the...
8748770 Power switching apparatus  
A power switching apparatus includes: a pressure tank having tube-like openings in a shank portion and having an insulating gas sealed therein; a vacuum valve housed in the pressure tank and...
8664550 Multi-pole circuit breaker with auxiliary supporting pieces  
The present invention discloses a multi-pole circuit breaker with auxiliary supports, which comprises a base, a plurality of single-pole circuit breaking units, an operating mechanism and a...
8455781 Low-voltage circuit breaker with sealed interchangeable poles  
A low-voltage circuit breaker that comprises: a containment structure; a control mechanism; a plurality of circuit breaking poles, each of which comprises a housing containing a sealed ampoule...
8426760 High-voltage circuit breaker having a switch for connection of a closing resistor  
A high-voltage circuit breaker has an interrupter unit, a closing resistor and a switch which is connected in series with the closing resistor. The interrupter unit has a driven first interrupter...
8426759 Vacuum circuit breaker  
Vacuum circuit breakers are to gain an extended lifetime by reducing contact face damage of moving and fixed electrodes with improved voltage withstand performance therebetween and enhanced...
8415580 Carrier link insulator for a circuit breaker  
A carrier link insulator electrically insulates a carrier drive link from an arc chamber in a circuit breaker.
8415578 Circuit breaker with a gear having a dead point  
An electrical circuit breaker has a first contact piece which can be moved in a first movement range along a switching axis and has an arcing contact, a second contact piece which can move along...
8410389 Remote drive for disconnector/isolator used in switchgear  
A remotely controlled, motorized drive system for a disconnector used in switchgear. An operator pushes a button on a remote control, which signals a receiver in the disconnector to engage a motor...
8354607 Switchgear having main circuit switches disposed in separate vacuum chambers  
A multi circuit type vacuum switchgear with improved ground isolation reliability. The multi circuit type vacuum switchgear has plural main circuit switches in a chamber. The respective main...
8309873 Low-voltage circuit breaker with sealed interchangeable poles  
A low-voltage circuit breaker that comprises: a containment structure; a control mechanism; a plurality of circuit breaking poles, each of which comprises a housing containing a scaled ampoule...
8173927 High and medium voltage switch apparatus with two interrupters, having common means for actuating the movable contacts of the interrupters  
To control a switch apparatus having two interrupters, such as a busbar disconnector and a grounding disconnector, there is provided a rotary control shaft arranged away from, and at right angles...
8115132 Heavy-duty circuit breaker with a housing  
A heavy-duty circuit breaker has a housing with a longitudinal housing axis and a contact arrangement disposed in the housing. The contact arrangement is conductively connected to a first...
8089020 Gas-insulated switching apparatus  
[Object] A compact gas-insulated switching apparatus in which the space for arranging a gas breaker module may be reduced, and the space for arranging a circuit wiring may be reduced in the...
8081407 Compact disconnector circuit-breaker for an alternator  
An alternator disconnector circuit-breaker of the invention presents a compact structure. The axes of opening/closure of the change-over first switch (12, 14), of the circuit-breaker second switch...
7910852 Encapsulated pole unit conductor assembly for an encapsulated pole unit and medium voltage circuit interrupter including the same  
A medium voltage circuit interrupter includes a circuit interrupter housing and a plurality of poles. Each of the poles includes an encapsulated pole unit. The encapsulated pole unit includes a...
7902480 Vacuum insulated switchgear  
A vacuum insulated switchgear comprising a vacuum container accommodating at least a pair of movable contacts and a pair of fixed contacts, wherein the movable contacts are capable of taking three...
7902479 Vacuum switchgear  
A reliable, compact vacuum switchgear is provided at an inexpensive cost. The vacuum switchgear comprises a switch 1 having a fixed electrode 12 and a movable electrode 13 connectable to and...
7897890 Vacuum insulated switchgear  
A vacuum insulated switchgear is provided with: an enclosure having a switch block defined by a grounded metal plate, a bus block positioned above the switch block, and a cable block positioned on...
7790997 Switch unit having a circuit breaker and a disconnector with common drive means  
A switch unit comprising a circuit breaker and a disconnector disposed in one plane and fixed to a metal casing. Common drive means comprise: a single insulating drive bar adapted to move in a...
7777149 Actuating the oppositely-moving contacts of an interrupting chamber by a cylindrical cam  
In order to reduce the breaking energy of a high-voltage or medium-voltage circuit-breaker, the interrupting chamber (10) contains two contacts (12, 14) mounted to move in opposite directions,...
7759595 Gas insulating switchgear equipped with grounding switchgear  
A gas insulating switchgear equipped with a grounding switchgear of the invention includes a sealing vessel that fills an insulation gas, a main circuit-switching fixed electrode that is fixed to...
7705262 Alternator disconnector circuit-breaker by a servomotor  
A first switch (10) has a first pair of contacts (12, 14) that are mounted to move relative to each other in translation. A circuit-breaker second switch (20) has a second pair of contacts (21,...
7679019 Electrical switching system  
An electrical switching system, preferably a medium-voltage switching system, has a power switch or load switch, a disconnecting switch, and a grounding switch configured as a vacuum switching...
7550691 Adjustable switching mechanism for series coupled vaccum interrupters  
An adjustable switching mechanism for adjusting the tolerance of electrical contacts of series coupled vacuum interrupters includes a primary drawbar coupled to a secondary drawbar via a pair of...
7511243 Power switch comprising an interrupter unit disposed within an encapsulating housing  
A circuit breaker has an interrupter unit, which is disposed within an encapsulating housing, and has a first contact piece and a second contact piece. The contact pieces can move in relation to...
7262362 High voltage device with a particle trap  
The high-voltage switching device used in one installation position and has metallic encapsulation (10) a switching gap (4) and a particle trap (1) for holding foreign body particles (2), and is...
7250583 Gas-insulated switchgear device  
A gas-insulated switchgear device comprising a first casing housing: at least a first terminal for input/output connection; a disconnector unit comprising at least a first fixed contact...
7211761 Switch and disconnector apparatus for electric substations  
A switch disconnector apparatus of the linear air type is described, said apparatus comprising: an upper device for transferring current, a fixed upper contact connected electrically to the upper...
7199324 High-voltage hybrid circuit-breaker  
The invention relates to a hybrid circuit-breaker which, for each pole, comprises a dielectric-gas interrupting chamber (1) which contains a first contact (1A) and a moving second contact (1B)...
7138597 Circuit breaker with arc gas propelled movable contact and opposed arc cutoff shutters  
The support for the moving contact of a circuit breaker has a piston that is driven by arc gases generated by initial separation of the contacts through magnetic repulsion to rapidly open the...
7091439 Isolator/circuit-breaker device for electric substations  
An electric device, in particular for medium or high voltage electric substations, able to perform the functions of circuit-breaking, isolating and earthing is described. The device comprises: a...
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...
6946614 Circuit breakers  
A circuit breaker includes an interrupter coaxial with a current sensor or transformer, the combined assembly being encapsulated within solid dielectric material and supported by an earthed tube...
6943307 Switching device  
The switching device for switching high electrical currents and voltages has at least one switch pole (1, 1′, 1″) which is operated by means of a rotatable shaft (8, 8′, 8″). Furthermore, the...
6881917 Vacuum switchgear  
Disclosed is a vacuum switchgear wherein a ground switch, a load switch, and an external connecting conductor to be electrically connected with the inside and outside of the vacuum container are...
6849819 High-voltage or medium-voltage switch device with combined vacuum and gas breaking  
A hybrid high-voltage or medium-voltage breaker device includes an enclosure filled with a dielectric gas, a vacuum switch, a gas switch and an operating rod. The vacuum switch includes a fixed...
6784392 Gas-insulated switchgear device  
A gas-insulated switchgear device which has a first bushing which accommodates a first terminal, a second bushing which accommodates a second terminal, a first enclosure which contains an...
6762386 Switchgear  
A switchgear wherein a connecting portion to be connected to a transmission side branch bus container and a connecting portion to be connected to a receiving side branch bus container are provided...
6759616 Gas insulated switchgear  
A gas insulated switchgear capable of performing maintenance and inspection of a breaker without shutting down a bus line includes a first case containing a breaker and having a bushing for...
6727453 Hybrid circuit breaker with a transmission  
The hybrid circuit breaker has at least two series-connected arcing chambers, which are operated by a commmon drive via a transmission (29) connected upstream from it. It is intended to be...
6649853 Combined type fluid pressure driving apparatus  
The present invention provides a switchgear, which can achieve miniaturization and simplification while securing high operation reliability, and excellent in assembly, operability and inspection,...
6643112 Semiconductor switch-assisted electromechanical relay  
An electromechanical relay including a mechanical displacement electrical contact and a transistor parallel-connected with the electrical contact. The contact is closed for a voltage V...
6605788 Air-insulated high-voltage disconnector  
An air-insulated high-voltage disconnector including a pivotally-mounted arm suitable for pivoting at one of its ends about a horizontal axis that is perpendicular to the axis Δ of the arm, and...
6593538 High-voltage interrupter device having combined vacuum and gas interruption  
A hybrid interrupter device includes a casing filled with a dielectric gas; a vacuum interrupter having a first arcing contact which is fixed and a second arcing contact which moves in translation...
6586697 Transportable electrical switching assembly with high voltage circuit interrupter  
A mobile electrical transformer assembly is mounted on a trailer and includes a three phase transformer. The electrical switching for the transformer includes a circuit interrupter having three...

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