| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 218121000 | Single-pole | 63 |
| 20100163528 | BUSHING TERMINAL OF VACUUM CIRCUIT BREAKER AND METHOD THEREOF - Disclosed is a bushing terminal of a vacuum circuit breaker used for interrupting current, which includes: a terminal body having a cylinder that can be inserted into the interior of a contactor and annular protrusions formed to be protrude from an outer circumferential surface of the cylinder; and a flange having an insertion hole through which the cylinder is inserted, wherein the annular protrusions are plastic-deformed so as to be fixed to the insertion hole of the flange. | 07-01-2010 |
| 20100219162 | LOW-VOLTAGE, MEDIUM-VOLTAGE OR HIGH-VOLTAGE SWITCHGEAR ASSEMBLY HAVING A SHORT-CIRCUITING SYSTEM - A switchgear assembly includes a vacuum interrupt chamber and a short-circuiting system arranged in the vacuum interrupt chamber. To enable rapid switching with physically simple means, a vacuum area of the vacuum interrupt chamber in which a fixed contact piece is placed is subdivided via a membrane, which is provided with a breaking line and which can be penetrated by a moving piston system to the contact piece during switching. The switchgear assembly can be utilized in a low-voltage, medium-voltage or high-voltage assembly. | 09-02-2010 |
| 20110163070 | LOW-VOLTAGE, MEDIUM-VOLTAGE OR HIGH-VOLTAGE ASSEMBLY - The disclosure relates to a voltage assembly having at least one short circuiting device in which a moving contact piece can be closed onto a fixed contact piece. In order to prevent breakdown at least two separated vacuum zones are arranged along a moving path of the fixed contact piece. | 07-07-2011 |
| 20110204030 | RETAINER, VACUUM INTERRUPTER, AND ELECTRICAL SWITCHING APPARATUS INCLUDING THE SAME - A vacuum interrupter includes a number of insulative tubes having a first open end and a second open end; a first end member secured to the first open end; a second end member secured to the second open end; a fixed contact mounted on a fixed electrode extending through the second end member; a retainer; and a movable contact. The retainer includes a rigid retainer having a plurality of legs and an opening, and an insulative bushing having a smaller opening. The insulative bushing is molded over a portion of the rigid retainer. The smaller opening is within the opening of the rigid retainer and is structured to receive a movable electrode. The movable contact is mounted on the movable electrode extending through the first end member and through the smaller opening. The movable contact is capable of axially reciprocating into and out of contact with the fixed contact. | 08-25-2011 |
| 20130062315 | VACUUM INTERRUPTER - The present disclosure relates to a vacuum interrupter capable of easily installing a central arc shielding plate in alignment without biasing in a radial direction. The vacuum interrupter includes a protruding guide unit protruding from a stationary electrode seal cup in a perpendicular direction to guide the installation of the central arc shielding plate such that the central arc shielding plate can be aligned in a radial direction. | 03-14-2013 |
| 218122000 | Pressure monitoring means | 2 |
| 20120145674 | Device for detecting vacuum loss in a vacuum breaking apparatus and vacuum breaking apparatus comprising one such device - A device for detecting vacuum loss in a vacuum breaking apparatus that includes an enclosure having a first part at least partially of insulating material, closed at its opposite ends by end-plates, and housing fixed and mobile electrodes. A second part of the enclosure is insulating material at least partially around the first part, this second part is an over-molding of electrically grounded conductive shielding at least a part of its outer surface. This first strip of over-molding faces both the first part and one of the electrodes, thereby providing two capacitances in series, namely, a vacuum capacitance between the electrode and the inner surface of the first part, and a solid capacitance between the inner surface of the first part and the first strip, and means for measuring change of current value in the first strip, which corresponds to a vacuum loss inside a vacuum breaking apparatus. | 06-14-2012 |
| 20160163483 | METHOD TO DETERMINE THE PRESSURE INSIDE OF A VACUUM INTERRUPTER, AND VACUUM INTERRUPTER ITSELF - A method to determine pressure inside a vacuum interrupter for medium or high voltage use, having at least one fixed contact piece and at least one movable contact piece arranged inside the technical vacuum of a vacuum interrupter, and wherein contact pieces are electrically connected to external electrical fixation points can implement a high accuracy pressure sensing in rough conditions inside a vacuum interrupter, without additional components internally to the vacuum interrupter, by connecting the external electrical fixation points with an external electrical energy source, and in the disconnected or open position of the vacuum interrupter, the effect of a cold cathode vacuum gauge will be used, in that the leakage current between the open contacts generates an x-ray induced ionization of the rest-gas inside the vacuum interrupter, and the resulting current is measured with high resolution, in order to determine by this current the rest-gas pressure inside the vacuum interrupter. | 06-09-2016 |
| 218123000 | Contact structure | 26 |
| 20100230388 | ELECTRODE FOR VACUUM INTERRUPTER - Disclosed is an electrode for a vacuum interrupter, capable of reducing damage of contacts due to heat concentration to the center of the contacts, by reducing magnetic flux concentration to the center of the electrode, and capable of rapidly extinguishing an arc by diffusing the arc by forming a wide range of magnetic flux. | 09-16-2010 |
| 20100270267 | ELECTRODE CONTACT MEMBER OF VACUUM CIRCUIT BREAKERS AND A METHOD OF MANUFACTURING THE SAME - The contact member has a finely-dispersed Cr layer | 10-28-2010 |
| 20110186546 | VACUUM SWITCH TUBE - A vacuum switch tube is provided, which includes a first conductive rod and a second conductive rod disposed with a first contact and a second contact respectively. The two contacts are sealed in a vacuum tube body and disposed facing each other. A front end of the first contact is a convex hemisphere. A contact body of the second contact is an annular body matching with the front end of the first contact. The first contact includes a first conductive member and a first magnetic member. The first conductive member and the first magnetic member extend in the same direction and match with each other. The first conductive member and the first magnetic member of the first contact are yin-yang-fish matched in shape, the cross section shape of the first magnetic members is divided by a neutrality line into two unequal regions. The second contact includes a second conductive member and a second magnetic member for forming the contact body of the second contact. The first magnetic member of the first contact and the second magnetic member of the second contact are anti-symmetrically disposed. Therefore, the re-ignition possibility during voltage breaking is reduced, an arc voltage is decreased, and effective arc-extinguishing is realized, thereby satisfying the high voltage breaking requirements. | 08-04-2011 |
| 20110186547 | VACUUM SWITCH TUBE - The present invention relates to a vacuum switch tube, which includes a first contact and a second contact disposed on conductive rods respectively. The two contacts are disposed facing each other. The two contacts are cylinders and include conductive members and magnetic members to form contact bodies. The cross section shape of the magnetic members is divided by a neutrality line into two unequal regions. The magnetic member of the first contact and the conductive member of the second contact are disposed corresponding to each other. The conductive member of the first contact and the magnetic member of the second contact are disposed corresponding to each other. The two vacuum switch contacts are anti-symmetrically disposed, such that a rotating magnetic field having rotating lines of magnetic force is formed, so that re-ignition possibility during voltage breaking is effectively reduced, and an arc voltage is decreased. | 08-04-2011 |
| 20130220977 | ELECTRICAL CONTACT ARRANGEMENT FOR VACUUM INTERRUPTER ARRANGEMENT - A vacuum interrupter for a circuit breaker arrangement including a cylindrically shaped insulating part, within which a pair of electrical contact parts are coaxially arranged and concentrically surrounded by the insulating part, wherein the electrical contact parts are arranged for initiating a disconnection arc only between corresponding inner contact elements after starting a disconnection process, and corresponding outer contact elements are arranged for commutating the arc from the inner contact elements to the outer contact elements until the disconnection process is completed wherein each inner electrical contact element is a TMF-like contact element for generating mainly a transverse magnetic field, and each outer electrical contact element is an AMF-like contact element for generating an axial magnetic field. | 08-29-2013 |
| 20150357136 | Modular Vacuum Interruption Apparatus - An improved modular vacuum interruption apparatus includes a vacuum interrupter, a first connection module, and a second connection module, with the first and second connection modules each being connectable and disconnectable with a pair of electrodes of the vacuum interrupter. The first connection module is selected from among a plurality of connection modules that are similar yet different and can be used interchangeably to form various permutations of the improved modular vacuum interruption apparatus. The second connection module is likewise selected from among a plurality of connection modules that are similar yet different and that are interchangeably usable with the vacuum interrupter to form different permutations of the modular vacuum interruption apparatus. Similarly, the vacuum interrupter is among a plurality of vacuum interrupters having different specifications but that are usable interchangeably with all of the first and second connection modules to form different permutations of the modular vacuum interruption apparatus. | 12-10-2015 |
| 218124000 | Movable | 9 |
| 20080302763 | VACUUM FAULT INTERRUPTER - Exemplary vacuum fault interrupters are described. | 12-11-2008 |
| 20100108643 | SWITCHING DEVICE WITH A VACUUM INTERRUPTER CHAMBER - The disclosure relates to a switching device with a vacuum interrupter chamber in which at least one moving contact piece is arranged. To considerably increase the switching rating and the dielectric strength, the disclosure proposes that two series-connected contact arrangements with a total of two contact levels which can be opened are arranged within a vacuum interrupter chamber. | 05-06-2010 |
| 20100193474 | LIMITED FLASH-OVER ELECTRIC POWER SWITCH - A limited flash-over electric power switch uses a dielectric gas regulator and a flash-over arrestor to greatly diminish the occurrences of high voltage flash-over during operation of a circuit interrupter. The dielectric gas regulator prevents the flow of the dielectric gas into the arc gap during an initial portion of the opening stroke of the interrupter contacts. Once the arc gap is sufficiently wide to greatly diminish the likelihood of a high voltage flash-over, the dielectric gas regulator allows the dielectric gas to flow into the arc gap to extinguish the arc. The flash-over arrestor snubs out incipient flash-over that may occur as the arc attempts to reform across the arc gap. The flash-over arrestor may be a conductive ring located on the interior surface of the nozzle in the region of the orifice. | 08-05-2010 |
| 20120091101 | CONTACT ASSEMBLY FOR VACUUM INTERRUPTER - The contact assembly for a vacuum interrupter, comprises: a fixed contact; a fixed electrode coupled to the fixed contact; a movable contact movable to a first position at which the movable contact comes into contact with the fixed contact and a second position at which the movable contact is separated from the fixed contact; a movable electrode coupled to the movable contact and movable with the movable contact; and a contact support member installed to be in contact with the movable contact on the circumference of the movable electrode and increase a contact area contacting the movable contact together with the movable electrode in order to reduce stress applied to the movable contact and the movable electrode when the movable contact moves to the first position. | 04-19-2012 |
| 20130119021 | VACUUM SWITCH AND ELECTRODE ASSEMBLY THEREFOR - An electrode assembly is provided for a vacuum switch, including a vacuum envelope, a fixed contact assembly including a fixed contact disposed within the vacuum envelope, and a movable contact assembly including a movable contact disposed within the vacuum envelope and movable between a closed position in electrical contact with the fixed contact and an open position spaced apart from the fixed contact. The electrode assembly includes at least one electrode bundle having a plurality of electrodes coupled to a corresponding one of the fixed contact assembly and the movable contact assembly. The electrodes extend from at or about a corresponding one of the fixed contact and the movable contact toward the closer of the first end of the vacuum envelope and the second end of the vacuum envelope. | 05-16-2013 |
| 20140048514 | CONTACT ASSEMBLY AND VACUUM SWITCH INCLUDING THE SAME - A contact assembly for use in a vacuum switch includes an electrode stem and a contact coupled to an end portion of the electrode stem via a threaded fastener which threadingly engages a threaded portion of the electrode stem. | 02-20-2014 |
| 20140175058 | CIRCUIT-BREAKER POLE PART WITH A FLEXIBLE CONDUCTOR FOR CONNECTING A MOVABLE ELECTRICAL CONTACT - The disclosure relates to a pole part of a circuit-breaker arrangement having an insulation housing for accommodating a vacuum interrupter containing a pair of corresponding electrical switching contacts, wherein a fixed upper electrical contact is connected to an upper electrical terminal molded or assembled in the insulation housing and a movable lower electrical contact is connected to the insulating housing by a support plate of the insulation housing via a flexible conductor that includes a first end for attaching the flexible conductor to the lower electrical terminal and a second end for attaching the flexible conductor to the movable lower electrical contact. The second end of the flexible conductor is provided with an inside thread which is screwed to an outside thread arranged on the distal end of the movable lower electrical contact. | 06-26-2014 |
| 20150069019 | ELECTRODE ASSEMBLY AND VACUUM INTERRUPTER INCLUDING THE SAME - Disclosed are an electrode assembly and a vacuum interrupter including the same. The electrode assembly is provided in an insulating vessel which is in a vacuum state, and switches a main circuit. The electrode assembly includes a first electrode plate, a second electrode, a coil conductor, a first conductor, and a second conductor. The coil conductor induces a flow of a current in a first direction and a second direction between the other side of the first conductor connecting pin and the one side of the second conductor connecting pin, and the first direction and the second direction are mutually opposite circumference directions. Accordingly, an arc gas is effectively spread by using mutually opposite flows of currents in a circumference direction, thereby enhancing break performance. | 03-12-2015 |
| 20160254110 | ELECTRICAL SWITCH | 09-01-2016 |
| 218127000 | Significant shape | 9 |
| 20110186548 | VACUUM SWITCH TUBE - A vacuum switch tube is provided, which includes a first conductive rod disposed with a first contact and a second conductive rod disposed with a second contact. The first contact and the second contact are disposed facing each other and sealed in a vacuum tube body. Contact bodies of the first contact and the second contact are spheres with spherical caps at two ends being cut off. The first contact and the second contact respectively include conductive members and magnetic members extending in the same direction and joining with each other to form the contact bodies. The cross section shape of the magnetic members is divided by a neutrality line into two unequal regions. The magnetic member of the first contact and the conductive member of the second contact are correspondingly disposed. The conductive member of the first contact and the magnetic member of the second contact are correspondingly disposed. The vacuum switch tube of the present invention can generate a rotating magnetic field in a vacuum gap formed between contact surfaces of two vacuum switch contacts in a vacuum arc-extinguishing chamber, so as to increase high-voltage resistant capability of the vacuum switch tube, which can be applied in a vacuum switch device of a higher voltage circuitry. | 08-04-2011 |
| 20110186549 | VACUUM SWITCH TUBE - The present invention relates to a vacuum switch tube, which includes a first conductive rod and a second conductive rod. A first contact is disposed at the first conductive rod. A second contact is disposed at the second conductive rod. The first contact and the second contact include conductive members and magnetic members, and are sealed in a vacuum tube body and correspondingly disposed. A front end of the first contact is disposed with a convex hemisphere. A front end of the second contact is disposed with a concave hemisphere matching with the front end of the first contact in shape. Therefore, the vacuum switch tube increases surface areas of the contacts, and reduces a resistance increase caused by the poor contacting effect. Meanwhile, a rotating magnetic field is formed between the convex hemisphere and concave hemisphere contacts, thereby facilitating arc-extinguishing and enhancing a breaking capability. | 08-04-2011 |
| 20150060410 | VACUUM SWITCHING APPARATUS AND CONTACT ASSEMBLY THEREFOR - A contact assembly for a vacuum switching apparatus includes a contact member and a reinforcing member adapted to structurally reinforce the contact member. The contact member includes first and second opposing sides, and a contact thickness. The reinforcing member has a reinforcement thickness, which is less than the contact thickness The contact member is made from a first material having a first coefficient of thermal expansion, and the reinforcing member is made from a second different material having a second coefficient of thermal expansion. The first coefficient of thermal expansion is substantially the same as the second coefficient of thermal expansion. | 03-05-2015 |
| 20150114931 | VACUUM INTERRUPTER WITH DOUBLE COAXIAL CONTACT ARRANGEMENT AT EACH SIDE - A vacuum interrupter is provided with a double co-axial contact arrangement in which an inner contact can have a TMF-like or Pin shape arranged within a concentrically cup shaped AMF coil having a single layer or multilayered contact parts at each side, on the side of a fixed contact arrangement as well as on the side of a movable contact arrangement. To provide high conductivity and low resistance, the outer cup shaped contact is made from a double or multiple layer arrangement, wherein at least one layer is made from a hard steel or steel alloy, and at least a second layer is made from material with high thermal conductivity. | 04-30-2015 |
| 20160141126 | Electrical Contact for Vacuum Interrupter and Process for Producing Same - In an electrical contact in which aggregation phases including Cu are dispersed in a matrix phase including Mo, Cr, and Cu, a maximum grain size of the aggregation phases falls in a range of 4 to 20 μm and, when the total Cu content in the electrical contact is denoted by W | 05-19-2016 |
| 218128000 | Slotted or grooved | 3 |
| 20080197114 | Contact Arrangement for a Vacuum Switch - A contact configuration for a vacuum switch includes cup-shaped contacts, which are movable one after another in a longitudinal direction and provided with slots for producing a radial magnetic field. A contact carrier whose side wall is provided with a front surface faces the opposite contact and a bottom section. Each contact has at least partially erosion-resistant contact elements, which cover at least the front surface and the internal bottom surface of the bottom section of the contact carrier facing the opposite contact. | 08-21-2008 |
| 20120091102 | CONTACT FOR VACUUM INTERRUPTER - According to the present invention, there is disclosed a contact of the vacuum interrupter, comprises a plurality of slot portions formed in an extended manner toward an outer circumferential surface from a plurality of positions, respectively, spaced apart from the center of a contact surface, and a petal portion formed between a pair of the adjacent slot portions, and to minimize a mechanical fragile part having a narrow width in the petal portion while inducing the rotational movement of an arc, each of the slot portion comprises a first end portion closed and adjacent to the center, a second end portion open and adjacent to the outer circumferential surface, a first slot portion linearly extended from the first end portion, and a second slot portion linearly extended to the second end portion by bending the first slot portion at a predetermined angle. | 04-19-2012 |
| 20140367362 | ELECTRODE FOR VACUUM CIRCUIT BREAKER, AND VACUUM INTERRUPTER USING THE ELECTRODE - An electrode for a vacuum circuit breaker comprises a cylindrical conducting body, a contact electrode as a combination electrode, and a plurality of slits provided on a surface area of the cylindrical conducting body, the slits being inclined with respect to an axial direction of the cylindrical conducting body, wherein an angle between the slits and the axial direction of the cylindrical conducting body is smaller as the slit becomes farther away from the contact electrode. | 12-18-2014 |
| 218129000 | Coil | 1 |
| 20080302764 | Contact backing for a vacuum interrupter - Exemplary contact backings for vacuum interrupters are described. | 12-11-2008 |
| 218130000 | Specific material | 2 |
| 20140076852 | Electrical Contacts, Manufacturing Methods Thereof, Electrodes, Vacuum Interrupters, and Electric Power Switches - Provided an electrical contact is cheap, excellent workability and lasts the effect of chopping current reduction. An electrical contact comprising a Cu matrix, and compounds Cu and low melting point metal which are dispersed in the Cu matrix, wherein a vapor pressure of the low melting point metal is more than 10 | 03-20-2014 |
| 218132000 | Alloy | 1 |
| 20140103012 | VACUUM INTERRUPTER - A vacuum interrupter, including a hollow housing, a plurality of end shields, a first shield, a second shield, a third shield, a first conductive rod, a second conductive rod, a static contact, and a moving contact. The hollow housing includes an inner wall. The end shields are disposed on an upper end and a lower end of the inner wall of the hollow housing. The hollow housing is double layered and made of ceramic. The first shield, the second shield, and the third shield are disposed on the inner wall between end shields on the upper end and end shields on the lower end of the inner wall in the form of an inward embedment or an outward embedment. The first conductive rod and the second conductive rod are vertically inserted into the hollow housing from a top and a bottom of the hollow housing, respectively. | 04-17-2014 |
| 218134000 | Housing structure | 30 |
| 20080203062 | SWITCHGEAR - A switchgear having interrupters wherein at least two moving contacts are capable of being open and close with respect to respective fixed contacts. The switchgear comprises a non-earthed metal vacuum chamber enclosing the interrupters therein, a connection conductor for connecting the moving contacts, an operating rod connected to the connecting conductor by means of an insulator and protruding from the non-earthed metal vacuum chamber, a sealing means for sealing the protrusion of the operating rod at the non-earthed metal vacuum chamber, circuit terminals protruding from the non-earthed vacuum chamber, an earth layer surrounding an outer periphery of the insulating mold, and apotential control means. The control means for controlling the potential of the non-earthed metal vacuum chamber is connected between the circuit terminals and is connected to the non-earthed metal vacuum chamber at the intermediate point of the potential control means. | 08-28-2008 |
| 20080245772 | Vacuum Interrupter - A vacuum interrupter has a housing, a first contact system, which includes a movable contact piece and a fixed contact piece, and a second contact system, which includes a grounding contact and a grounded mating contact piece. The grounding contact is disposed on a movable contact rod, which is passed out of the housing in a sealing manner, with which vacuum interrupter an interaction of the arc with the grounded mating contact is prevented. The first contact system is held in the interior of the housing using vacuum-tight separating means, which divide the interior of the vacuum interrupter into a first interior having the first contact system and a second interior having the second contact system. | 10-09-2008 |
| 20080302765 | Vacuum-Insulated Switching Device - A vacuum-insulated switching device contains a grounded vacuum vessel, a contact system having a fixed contact and a moving contact, electrical connecting lines coupled to the fixed contact and the moving contact, and vacuum-tight bushings supported by the grounded vacuum vessel, and provide insulation from the grounded vacuum vessel. The vacuum-tight bushings seal the electrical connected lines. An insulating transmission element is provided. A driving apparatus is coupled to the moving contact via the insulating transmission element and in a vacuum-tight manner. Further vacuum-tight bushings are provided. A further vacuum vessel is disposed in the grounded vacuum vessel. The fixed contact and the moving contact are disposed in the further vacuum vessel and pass out of the further vacuum vessel via the further vacuum-tight bushings. | 12-11-2008 |
| 20090218318 | VACUUM SWITCHING CHAMBER FOR MEDIUM-VOLTAGE SWITCHGEAR ASSEMBLIES - Vacuum switching chamber is disclosed for a medium-voltage switchgear assembly having one or more ceramic cylinder tube sections which are closed both on the fixed-contact side and on the switching-contact side by metallic covers. In order in the process to achieve a situation in which a vacuum switching chamber is further improved in terms of its resistance to external pressure the disclosure proposes providing at least one of the covers, on the inside and/or outside, with an inlay which increases the resulting wall thickness, an outer cover or outer ring, which inlay, outer cover or outer ring rests at least partially cohesively in the cover or on a cover on the outside. | 09-03-2009 |
| 20100025377 | Housing for a vacuum interrupter module - A housing for a vacuum interrupter module that resists fracture when fasteners received therethrough are tightened, comprises an elongated hollow body from which a mounting flange extends from at least one end. Extending between the mounting flange and the body and/or coextensive with the mounting flange is a curved transition that maintains at least one curved recess, which partially surrounds corresponding mounting bores that are configured to receive suitable fasteners to mount the housing. Once mounted, the curved transition prevents stress forces imparted by the fasteners from deflecting the mounting flange, thereby inhibiting the formation of fractures therein. | 02-04-2010 |
| 20100206848 | METHOD FOR PRODUCTION OF A POLE PART OF A MEDIUM-VOLTAGE SWITCHING DEVICE, AS WELL AS THE POLE PART ITSELF - A method for production of a pole part of a medium-voltage switching device, and a pole part are provided. To obviate costly pressure reinforcements at least on the switching contact side of the vacuum interrupt chamber in the area of the mold core, while also achieving an optimum injection-molded result, a compensation ring is positioned, before the encapsulation process, as a separate injection-molded seal on or close to the external circumferential line of a vacuum interrupt chamber cover, between the lower cover of the vacuum interrupt chamber and the mold core. The positioned compensation ring is also encapsulated so as to remain in the encapsulation, and the mold core is then removed. | 08-19-2010 |
| 20100288733 | VACUUM CIRCUIT BREAKER OF TANK TYPE - [Task] To prevent damage of a bellows, to reduce the size, and to prevent the global warming. | 11-18-2010 |
| 20120103941 | 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 connected to the pressure tank at one end; bushing conductors penetrating through the openings of the pressure tank and electrically connected to the vacuum valve; and current transformers provided on an outside of the pressure tank and measuring a current flowing through the bushing conductors. Tube-like current transformer installation portions on which to install the current transformers are provided above the openings of the pressure tank and an outside diameter of the openings of the pressure tank is made larger than an outside diameter of the current transformer installation portions. | 05-03-2012 |
| 20120175346 | EMBEDDED POLE PART WITH AN ISOLATING HOUSING MADE OF THERMOPLASTIC MATERIAL - An embedded pole part is provided with an isolating housing made of thermoplastic material. The housing embeds an interrupter as well as the electric terminals of the pole part. At an outer surface of the housing, horizontal and/or vertical aligned three-dimensional structures joined by material engagement are implemented into the thermoplastic material, to achieve a higher mechanical stiffness as well as higher creepage length of the pole part. The mechanical and dielectric parameters of the pole part are thereby strengthened, for example, in the case of a short circuit current. | 07-12-2012 |
| 20120228267 | POWER SWITCHGEAR - A power switchgear according to the present invention includes a pass-through hole which is formed in a fixed side contact case that is supported by a fixed side insulation supporter to fix and retain the fixed side of a vacuum valve and has a larger inner diameter than an outer diameter of the vacuum valve so that the vacuum valve is capable of horizontally passing through and the fixed side end portion of the vacuum valve is placed by passing through; and a fixed side connection conductor attached to the fixed side contact case and connected to the fixed side end portion of the vacuum valve. | 09-13-2012 |
| 20130032576 | VACUUM SWITCH INCLUDING AN INSULATING BODY HAVING A NUMBER OF TRANSPARENT PORTIONS MADE OF A SINGLE CRYSTAL ALUMINA - A vacuum switch includes a vacuum envelope; a fixed contact assembly partially within the vacuum envelope; and a movable contact assembly partially within the vacuum envelope and movable between a closed position in electrical contact with the fixed contact assembly and an open position spaced apart from the fixed contact assembly. The vacuum envelope includes an insulating body having a number of transparent portions made of a single crystal alumina for viewing the fixed contact assembly and the movable contact assembly within the vacuum envelope. | 02-07-2013 |
| 20130126480 | CIRCUIT-BREAKER POLE PART AND METHOD FOR PRODUCING SUCH A POLE PART - Exemplary embodiments are directed to a method for producing a circuit-breaker pole part that includes an external insulating sleeve made of a solid synthetic material for supporting and housing a vacuum interrupter insert for electrical switching a medium-voltage circuit. An adhesive material layer at least on the lateral area of the interrupter insert is applied and the coated interrupter is embedded by molding with the solid synthetic material in order to form a single layer of the surrounding external insulating sleeve. | 05-23-2013 |
| 20130153539 | FIBER REINFORCED INSULATION MATERIAL FOR EMBEDDED VACUUM INTERRUPTERS - A vacuum interrupter embedded in an insulating material is disclosed, the insulating material including a first main layer having a first sub-layer, a second sub-layer, and a third sub-layer. The second sub-layer is arranged between the first sub-layer and the third sub-layer. The first sub-layer, the second sub-layer, and the third sub-layer can include fibers, wherein the first sub-layer can include a group of first fibers which are arranged in parallel with respect to each other. | 06-20-2013 |
| 20130161291 | SWITCHING APPARATUS - A switching apparatus includes: a vacuum valve which houses a fixed side electrode fixed to a fixed current-carrying shaft and a movable side electrode fixed to a movable current-carrying shaft coaxially arranged with the fixed current-carrying shaft in face-to-face relation to the fixed side electrode; and a buffering mechanism which is coaxially disposed with the fixed current-carrying shaft on the fixed side of the vacuum valve and reduces a collision load at the time when the movable side electrode is close contact with the fixed side electrode. | 06-27-2013 |
| 20140124480 | TANK TYPE VACUUM CIRCUIT BREAKER - In a tank type vacuum circuit breaker in which each of movable side and fixed side connection terminals of a vacuum interrupter arranged in a main tank and the lower end of each of conductors of a pair of bushings arranged in a standing condition in the main tank are connected by a flexible conductor and a shield for surrounding connection portions is provided, the shield is configured by combining: a main body side shield which is provided on axial both sides of the vacuum interrupter and covers a connection portion of the flexible conductor and the connection terminal; and a bushing side shield which is provided on the lower end side of the conductor and covers a connection portion of the conductor and the flexible conductor. | 05-08-2014 |
| 20140138357 | POWER DISTRIBUTION SWITCHGEAR CIRCUIT BREAKER - The invention relates to a power distribution switchgear circuit breaker applicable especially to medium or high voltage distribution board switchgears. The power distribution switchgear circuit breaker comprises at least one breaking element in the form of vacuum chamber or SF6 pole, which is provided with electric terminals, to which there are non-permanently connected the ends of contact arms, made in the form of a metal tube. The circuit breaker according to the invention is characterized in that the metal tube of the contact arms has all cross-sections perpendicular to the axis of the tube without any discontinuities along the whole length of the tube and it is located in an insulating casing which is provided with cooling elements which are located on the outer surface of the casing and which form an integral part with the casing. | 05-22-2014 |
| 20140209569 | TANK TYPE VACUUM CIRCUIT BREAKER - A pressure tank which seals and contains an electrical device, is formed with an opening portion corresponding to a terminal portion provided on the electrical device. A porcelain tube which is disposed so as to protrude with respect to the pressure tank, is fixed to the opening portion at a base portion thereof, and is provided with a terminal conductor at a leading end portion thereof. A first connection conductor is led out into a center portion of the porcelain tube at one end thereof, and is connected to the terminal conductor at the other end thereof. A second connection conductor which has a concave section to be fitted onto the first connection conductor at one side thereof, is connected to the terminal portion at the other side thereof. A contact is disposed between the first connection conductor and the concave section of the second connection conductor. | 07-31-2014 |
| 20180025870 | TANK TYPE VACUUM CIRCUIT BREAKER | 01-25-2018 |
| 218135000 | Bellows | 1 |
| 20130001200 | Vacuum Valve and Switchgear Equipped with Said Vacuum Valve - The object of the present invention is to provide a vacuum valve with strength against buckling deformation and without pressure leakage. | 01-03-2013 |
| 218136000 | Shielding | 10 |
| 20080203063 | Vacuum interrupter chamber - The disclosure relates to a vacuum interrupter chamber having an insulating ceramic wall, within which contact pieces which move in a vacuum are arranged and are surrounded by a screen between the contact piece and the interrupter chamber wall. In order in this case to improve on the one hand the erosion resistance of the screen and on the other hand the dielectric strength of the arrangement, the disclosure proposes that coatings composed of high-melting-point material or composed of refractory metals be fitted at least partially in the area of the screen or other components within the vacuum interrupter chamber. | 08-28-2008 |
| 20080314874 | Vacuum Interrupter - A vacuum interrupter has a tubular insulating body and a contact system with a moving contact and a fixed contact each connected to power supply bolts, which are passed out of the vacuum interrupter in a vacuum-tight manner. A control electrode is DC-connected to the fixed-contact power supply bolt. A damping shield, which is arranged on the insulating body, is conductive and overlaps the control electrode in an axial direction. The vacuum interrupter has good shielding properties while at the same time improving the dielectric insulation. The control electrode extends out in the form of a toroid in the region of overlap with the damping shield, the damping shield is drawn inwards so as to correspond to the toroid, and the fixed-contact power supply bolt is constricted so as to correspond to the contour of the damping shield and the constriction is fitted such that the drawn-in region of the damping shield extends around the constriction. | 12-25-2008 |
| 20100032412 | VACUUM ENVELOPE INCLUDING SELF-ALIGNING END SHIELD, VACUUM INTERRUPTER, VACUUM CIRCUIT INTERRUPTER AND METHOD INCLUDING THE SAME - A vacuum envelope is for a fixed contact mounted on a fixed electrode and a moveable contact mounted on a moveable electrode. The vacuum envelope includes a ceramic tube including a first open end and a second open end. A first end member is secured to the first open end. A second end member includes an inside surface and is secured to the second open end. A self-aligning end shield includes a first end having an opening therein, a second open end, an intermediate portion disposed between the first end and the end shield second open end, and a flange portion disposed from the end shield second open end. The flange portion extends outwardly from the intermediate portion and generally back toward the first end. The flange portion includes an edge engaging the inside surface of the second end member, and is normally offset from the ceramic tube. | 02-11-2010 |
| 20130213938 | COMPACT VACUUM INTERRUPTER WITH SELECTIVE ENCAPSULATION - A vacuum interrupter is disclosed with a fixed contact and a movable contact placed axially in a spaced apart relationship. The ceramic insulator cylinders each surround the fixed contact and the movable contact. A floating shield within the ceramic cylinders has a floating potential flange disposed between the two ceramic cylinders, and exposed to external ambient. Encapsulation for at least one contact terminal extends from a metallic end cap of the corresponding contacts to cover a respective ceramic cylinder by an overlapping distance. | 08-22-2013 |
| 20140151339 | VACUUM INTERRUPTER AND SWITCH POLE - A vacuum interrupter has a housing with at least a first metal flange through which a first connection pin extends into the vacuum interrupter in a vacuum-tight manner to a first contact. The housing has at least one insulating-material housing region formed by a disc-like insulator. A second connection pin extends into the vacuum interrupter in a vacuum-tight manner to a second contact. The vacuum interrupter can be produced in a cost-effective manner with a compact construction. There is also described a switch pole for a switching device having a vacuum interrupter. | 06-05-2014 |
| 20140175059 | INSULATING CYLINDER AND A MAIN CIRCUIT STRUCTURE USING THE SAME - An insulating cylinder and a main circuit structure using the insulating cylinder includes a main cavity, a secondary grounded insert connected with the main cavity, an arc-distinguishing chamber connected with the main cavity, and an outlet terminal insert connected with an end of the arc-distinguishing chamber. An observation window is provided at a side of the main cavity. A main circuit structure using the insulating cylinder, which further includes a main grounded rod and a main grounded contact positioned in the main cavity, an arc-distinguishing chamber insulating pole, an isolated insulating pole, an isolated conductive block, an isolated rod and an isolated contact, and a main bus-bar bushing connected with the isolated contact. A flexible connection is provided between the main grounded contact, the arc-distinguishing chamber and the isolated conductive block. | 06-26-2014 |
| 20140332501 | SHIELDING ELEMENT FOR THE USE IN MEDIUM VOLTAGE SWITCHGEARS - A shielding element is disclosed for use in medium voltage switchgears with vacuum interrupters with at least two contacts, which are movable along a switching path between closed and open contact positions, wherein the shielding element is positioned around the contact position region in the vacuum interrupter, wherein at least the inner surface of the shielding is applied with an implemented surface structure to form a topographic structure which is a rough or a structured surface. To enhance the energy absorbance behavior of the shielding, the implemented topographic structure can be formed such that by given constant or approximately constant volume (Vi) of the shielding body, the surface ratio of the treated surface (S2) with implemented surface structure and volume V2, and a untreated surface (S1) without topographic structure and volume V1 is greater than 1, so that this follows the condition: V1˜V2 and S2/S1>1. | 11-13-2014 |
| 20160104590 | COMPOSITE ARC SHIELDS FOR VACUUM INTERRUPTERS AND METHODS FOR FORMING SAME - The disclosed concept pertains to vacuum interrupters and arc-resistant shields. The arc-resistant shields are positioned in between a ceramic insulator. Each end of the arc-resistant shield is hermetically sealed to the ceramic insulator. The arc-resistant shield includes an outer surface and an inner surface. The inner surface includes an arc-resistant material. Disposed within the arc-resistant shield is a pair of electrode assemblies which are separable to establish arcing. In certain embodiments, the arc-resistant material is copper-chromium alloy. | 04-14-2016 |
| 218137000 | With support | 2 |
| 20140251958 | VACUUM INTERRUPTER - A vacuum interrupter, including: an insulating housing; a movable end cap; a stationary end cap; a pair of movable and stationary contacts; and a pair of shields. The pair of shields is fixed on the movable end cap and the stationary end cap, respectively. The insulating housing, the movable end cap, and the stationary end cap cooperate to form a closed space. The closed space includes a movable fracture and a stationary fracture. The movable fracture is formed by the pair of movable and stationary contacts for carrying rated current and disconnecting capacitive load whereby achieving breaking performance of the vacuum interrupter. The stationary fracture is formed by the pair of shields. When the pair of stationary and movable contacts reaches a full open position, the stationary contact and the movable contact enter the pair of shields, respectively. | 09-11-2014 |
| 20150114932 | CIRCUIT-BREAKER POLE PART WITH A HEAT TRANSFER SHIELD - A pole part of a circuit-breaker arrangement having an insulation housing for accommodating a vacuum interrupter insert containing a pair of corresponding electrical switching contacts, wherein a fixed upper electrical contact is connected to an upper electrical terminal molded in the insulation housing and a movable lower electrical contact is connected to a lower electrical terminal of the insulation housing via an electrical conductor which is operated by an adjacent pushrod. The lower electrical terminal is connected to a ring shaped heat transfer shield arranged along the inner wall or at least partly inside the wall of the insulation housing surrounding the pushrod and/or the distal end of the movable lower electrical contact. | 04-30-2015 |
| 218138000 | Potted or encapsulated | 1 |
| 20100276395 | 35kV Rubber Molded Fused Vacuum Interrupter - A high voltage, preferably 35 kV, rubber molded fused vacuum interrupter assembly for protecting an electrical circuit from fault currents. The assembly includes one or more vacuum fault interrupters; one or more current limiting fuses; one or more sensing modules and a control module. Each of the vacuum fault interrupters is contained in a molded insulating structure and each of the current limiting fuses is encapsulated in a rubber molding. For each phase of the electrical circuit, a vacuum fault interrupter and a current limiting fuse are connected in series. The sensing modules measure the current in the lines. The vacuum fault interrupter interrupts low current faults and the fuse operates to protect against high current faults in a high voltage electrical power line. A three-phase electrical circuit would have three vacuum fault interrupters and three current limiting fuses. | 11-04-2010 |
