Arc Chute Assembly Patents (Class 218/149)
  • Patent number: 11145472
    Abstract: An electrical contact system includes a static contact, a movable contact movable between a switch-on position with the movable contact in electrical contact with the static contact and a switch-off position with the movable contact separated from the static contact, and an arc extinguishing device including an arc extinguishing member and a driving mechanism. When the movable contact is moved to the switch-on position, the arc extinguishing member is moved beyond a contact area between the movable contact and the static contact and the movable contact is allowed to be in electrical contact with the static contact. When the movable contact is moved to the switch-off position, the arc extinguishing member is moved between the movable contact and the static contact and the movable contact is electrically isolated from the static contact.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: October 12, 2021
    Assignee: Tyco Electronics (Shenzhen) Co. Ltd
    Inventors: Xiaoning Zhang, Teng Zou
  • Patent number: 11011324
    Abstract: A contact device including a fixed contact member having a fixed contact; and a movable contact member which includes a movable contact and is movable between a position where the movable contact is in contact with the fixed contact and a position where the movable contact is away from the fixed contact, a first contact member which is one of the fixed contact member and the movable contact member further including a recess in a surface to which a first contact of the first contact member is provided. The first contact protrudes toward a second contact of a second contact member which is another of the fixed contact member and the movable contact member, and a periphery of the recess at least partially surrounding a periphery of the first contact in a surface perpendicular to a protruding direction of the first contact.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: May 18, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Kazuhisa Kinoshita
  • Patent number: 10957504
    Abstract: An arc chute includes a pair of opposing side walls and a non-magnetic body. The side walls are formed of an electrically insulating material. The non-magnetic body includes an open area and a plurality of slots through which to facilitate gas flow. The arc chute also includes a back wall arranged on a back side of the non-magnetic body and including at least one first insulator and at least one magnet. The at least one first insulator is arranged between the at least one magnet and the open area and configured to electrically isolate the magnet from the non-magnetic body. The magnet is configured to generate a magnetic field to redirect an arc in the open area toward one of the side walls.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: March 23, 2021
    Assignee: Schneider Electric USA, Inc.
    Inventor: John J. Shea
  • Patent number: 10811207
    Abstract: The present disclosure relates to an arc extinguishing device of a molded case circuit breaker which includes a fixed contactor fixedly provided on part of a base assembly case; a movable contactor brought into contact with or separated from the fixed contactor; and an arc extinguishing unit configured to extinguish an arc generated when the movable contactor is separated from the fixed contactor, and the arc extinguishing unit including a pair of side plates provided on the base assembly case; and a plurality of grids provided to have a predetermined distance between the pair of side plates, and the grid including a first grid formed with a first cutout portion on a first side surface where an arc is generated; and a second grid formed with a second cutout portion having a depth different from that of the first cutout portion on a second side surface where an arc is generated.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: October 20, 2020
    Assignee: LSIS CO., LTD.
    Inventors: Jeongjae Lim, Kihwan Oh
  • Patent number: 10418217
    Abstract: The present invention provides an arc extinguishing structure for direct current circuit breaker, which comprises a first casing, a second casing, an arc extinguishing chamber, a gas generating hood, a movable contactor and a stationary contactor, with a plurality of arc extinguishing grid-plates installed at an upper part inside the arc extinguishing chamber and having lower slots which are open towards an accommodation space and have a size that gradually decreases along a direction from the second casing to the first casing, wherein the first casing has a first extension plate disposed against the first gas generating plate and a second extension plate disposed against the second gas generating plate, the first extension plate and the second extension plate are arranged to extend into the arc extinguishing chamber so as to form a spacing communicated with the accommodation space and disposed opposite to the arc extinguishing grid-plates.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: September 17, 2019
    Assignee: ZHEJIANG PEOPLE ELE. APPLIANCE CO., LTD.
    Inventors: Yanxia Zhang, Li Zhang, Zhihao Zheng, Qianzhong Chen
  • Patent number: 10403458
    Abstract: A switching unit for an electrical switch is disclosed. In an embodiment, the switching unit includes at least one fixed contact and one moveable contact with a current feed, which in order to close or open the current path are respectively brought into mechanical contact with each other or mechanically or magnetically separated from each other. The switching unit further includes at least one extinguishing plate, which affects an electrical arc created when the electrical contacts are opened. The current feed to the moveable contact is designed such that in the open position it directs the current along the electrical arc in the opposite direction to the current direction of the arc.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: September 3, 2019
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Reinhard Herdegen, Michael Poles
  • Patent number: 10347438
    Abstract: An arc extinguishing gas filtering device for electrical current switchgear includes a porous central body including longitudinal channels and transverse channels which fluidically connect the longitudinal channels together, the longitudinal channels having a bent form; and a tight outer skin which surrounds the central body and which includes inlet orifices and outlet orifices, each longitudinal channel extending between an inlet orifice and an outlet orifice, the outer skin and the central body forming a rigid part in a single piece produced in a metallic material.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: July 9, 2019
    Assignee: SCHNEIDER ELECTRIC INDUSTRIES SAS
    Inventors: Vincent Pavageau, Eric Domejean, Marc Rival
  • Patent number: 10319543
    Abstract: An installation switching apparatus includes: a housing; at least one contact point; an exhaust air duct which in an upstream portion thereof receives arc gases of a switching arc that has been created at the at least one contact point, and by way of an exhaust air opening in a housing wall of the housing in a downstream portion of the exhaust air duct the exhaust air duct releases the arc gases into an environment of the housing; at least one thermal release; and a set screw for setting the at least one thermal release. The set screw at an activation end thereof has a formed element for contacting in a form-fitting manner a tool for rotating activation of the set screw. An operative end of the set screw is coupled to the at least one thermal release.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: June 11, 2019
    Assignee: ABB SCHWEIZ AG
    Inventor: Erwin Muders
  • Patent number: 10128069
    Abstract: A debris barrier is for an electrical switching apparatus. The electrical switching apparatus includes separable contacts and an arc chute. The separable contacts generate debris when tripping open in response to an electrical fault. The arc chute has a plurality of splitter plates each having an edge portion and a distal portion located opposite and distal the edge portion. The debris barrier includes a first leg, a second leg, and a middle portion connecting the first leg and the second leg. The middle portion is coupled to one of the separable contacts. At least one of the first leg and the second leg has a first barrier portion and a second barrier portion extending therefrom. The first barrier portion is located proximate the distal portion. The second barrier portion extends from the first barrier portion toward the edge portion in order to redirect the debris toward the edge portion.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: November 13, 2018
    Assignee: EATON INTELLIGENT POWER LIMITED
    Inventors: Christian Ruempler, Brian John Schaltenbrand, Andrew Lawrence Gottschalk, Richard Paul Malingowski, Kelly Julia McCarthy, Xin Zhou
  • Patent number: 10079480
    Abstract: An arc resistant air vent for a switch gear cabinet comprises a plenum stacked with spaced corrugated plates, the plates being perforated by slots at the corrugation turning points. Air and water can enter through a front grille of the vent. Air is allowed to pass through to the cabinet while water entering the vent is returned through the perforations to a bottom wall of the plenum which drains at the grille. The plates are held in frangible connections to the side walls of the plenum and the slots produce an accordion hinge to allow a release and a folding of the plates together under the pressure of an arc blast in the switchgear cabinet to seal the grille.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: September 18, 2018
    Assignee: Schneider Electric USA, Inc.
    Inventor: Richard M. Trussler
  • Patent number: 10020144
    Abstract: A high-voltage multipolar circuit breaker including a first chamber for receiving gases, in communication with a first arc quenching chamber, and including a first aperture for exhausting gases to the exterior of the casing, the aperture being provided with a first downstream filtering device. The circuit breaker furthermore includes at least one second chamber for receiving gases, in communication with at least one second arc quenching chamber of another pole of the circuit breaker, the chamber itself being equipped with a second upstream device for filtering gases, the second chamber for receiving gases including a second aperture for exhausting gases to the exterior of the casing, the chamber being provided with a second downstream filtering device, the first chamber for receiving gases and the second chamber for receiving gases being separated fluidically one from the other by an impermeable wall.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: July 10, 2018
    Assignee: SCHNEIDER ELECTRIC INDUSTRIES SAS
    Inventors: Marc Rival, Eric Domejean, Jean-Paul Gonnet, Nicolas Chaboud
  • Patent number: 10020143
    Abstract: An electrical apparatus for breaking an electric current includes an electrical arc extinguishing chamber, for extinguishing an electrical arc formed on the separation of electric contacts, provided with an extinguishing gas exhaust orifice and an extinguishing gas filtration system, placed at the output of the exhaust orifice and including a filter and a gas diffusor. The gas diffuser includes, superposed between them, a central layer and two outer layers arranged on either side of the central layer. The central layer is provided with first through holes. Each outer layer is provided with second through holes. The first holes are misaligned relative to the second holes so that each of the second holes emerges on a solid portion of the central layer without any first hole.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: July 10, 2018
    Assignee: SCHNEIDER ELECTRIC INDUSTRIES SAS
    Inventors: Marc Rival, Eric Domejean, Daniel Rota, Gregoire Brun
  • Patent number: 9966210
    Abstract: A circuit interrupter having a moveable contact arm that forms part of the linkage assembly that connects to the handle. The moveable contact arm positioned essentially vertically in the circuit interrupter housing and positioned such that any arc that develops is drawn in a direction away from the moveable contact arm. The moveable contact arm moveable about two pivot points when the contacts are opening and closing, one of the two pivots positioned in a curved channel to slidingly move in the channel during opening and closing.
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: May 8, 2018
    Assignee: Carling Technologies, Inc.
    Inventor: Michael Fasano
  • Patent number: 9953789
    Abstract: A single-pole breaking unit which includes a rotary contact bridge, a stationary contact operating with the contact bridge and connected to a current input, a rotary bar having radially extending axial end surfaces, and radial side surfaces with a transverse hole for the contact bridge which is salient through opposite radial side surfaces of the bar, an arc extinguishing chamber opening onto an opening volume for the contact bridge, two parallel side panels parallel to the axial end surfaces of the bar, with the rotary bar located between two sealing flanges between the axial end surfaces of the rotary bar and the side panels and movable axially toward the side panels to ensure tightness between the inside and the outside of the breaking unit, the sealing flanges each comprising a radially extending portion, and a cylindrical portion, both co-axial with the rotary bar, which cylindrical portion has an inside radius slightly less than the radial extent of the rotary bar, providing a space between the inside s
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: April 24, 2018
    Assignee: Schneider Electric Industries SAS
    Inventors: Hervé Anglade, Christophe Grumel, Marc Rival, Jean-Paul Gonnet
  • Patent number: 9760575
    Abstract: An apparatus and method for cloud-based storage, retrieval and sharing of files tagged with scannable code tags and group invitation. This application and method includes establishing a user account on a network, the user account being linked to a user space configured to store at least media files for an owner of the user account, generating a scannable code tag, and linking the scannable code tag with the user account and the owner. The method also includes linking a group invitation to one or more media files.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: September 12, 2017
    Inventor: Robert Dale Beadles
  • Patent number: 9761392
    Abstract: A plate stack in a cooling device for hot gases generated in electric installation devices, preferably in low-voltage power switches. The plate stack is arranged in the flow path of the hot switching gases into a window, the plate stack having identical plates made of a material with a high heat conductivity. Each of the plates is provided with spacer elements which correspond to the spacing of the plates, and the plates are arranged in the stack such that the orientation of the plates changes one after the other.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: September 12, 2017
    Assignee: EATON ELECTRICAL IP GMBH & CO. KG
    Inventors: Albert Zacharias, Christian Ruempler
  • Patent number: 9697968
    Abstract: This electrical circuit breaker includes at least one first fixed land, a support assembly equipped with at least one second land rotationally mobile, about a main axis, between a first position in which the second land is in contact with the first land and a second position in which the second land is separated from the first land and an arc-extinguishing chamber including a stacking of plates, a top arc-guiding horn, a bottom arc-guiding horn, equipped with at least one tab and a screen made of insulating material surrounding the bottom arc-guiding horn. The circuit breaker also includes two protuberances produced in a gas-producing material, which are mounted on the screen, arranged between the bottom horn and the top arc-guiding horn and facing the tab of the bottom arc-guiding horn, the protuberances having a prismatic or pseudo-prismatic form.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: July 4, 2017
    Assignee: SCHNEIDER ELECTRIC INDUSTRIES SAS
    Inventors: Marc Rival, Hubert Roelandt, Stephane Dye
  • Patent number: 9646784
    Abstract: The present invention relates to an arc chamber to extinguish electric arcs for a contactor with an extinguishing system, a blowing device which blows electric arcs into the extinguishing system, and a plurality of lamellar electric arc extinguishing elements between which flow channels are formed, wherein the flow channels each have a scattering section and wherein the scattering sections of adjacent flow channels are formed with different inclinations so that the blown air is deflected into different directions by the flow channels. The invention further relates to a contactor with such an arc chamber.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: May 9, 2017
    Assignee: Schaltbau GmbH
    Inventors: Andrej Ignatov, Korbinian Kreuzpointner
  • Patent number: 9425003
    Abstract: An arc quenching plate for an electric switch includes a first mounting portion and a second mounting portion for mounting the quenching plate to respective recesses of the switch. The first mounting portion and the second mounting portion have a different form when compared to each other.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: August 23, 2016
    Assignee: ABB OY
    Inventors: Harri Mattlar, Mikko Välivainio
  • Patent number: 9343250
    Abstract: A contact bus bar assembly for supplying power to a load, and further pertains to a switching device which can be connected to such a compact bus bar assembly, and to a power distribution system. The bus bar assembly includes at least two electrically conductive tracks which are at least partly covered by an electrically insulating cover. An outer surface of said insulating cover is provided with a plurality of ribs arranged in a region connecting pin terminals. The switching device may additionally comprise a separating element provided with a plurality of second ribs.
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: May 17, 2016
    Assignee: Rockwell Automation Switzerland GMBH
    Inventors: Thomas Strebel Marzano, Willy Feller
  • Patent number: 9324519
    Abstract: A low-voltage switching device including a plurality of arc-extinguishing chambers, wherein each of the arc-extinguishing chambers encloses a contacting unit including a stationary contact and a movable contact and arcs are formed when the movable contact is disconnected to the stationary contact, each of the arc-extinguishing chamber including a plurality of U-shaped arc extinguishing plates arranged for splitting, guiding and cooling the arc formed between the contacts and sidewalls provided with guiding means for guiding the arms of the arc extinguishing plates. The guiding means includes a plurality of supporting plates and the supporting plates are arranged protruding towards interior of the arc-extinguishing chamber for receiving the arms of the arc-extinguishing plates and for providing electrical isolation between arms of two adjacent arc extinguishing plates.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: April 26, 2016
    Assignee: ABB Technology Ltd
    Inventor: David Karlen
  • Patent number: 9287071
    Abstract: The invention relates to a high-safety surge protective device which comprises a casing, at least one overvoltage protection component inside the casing, a release unit used to separate the overvoltage protection component from the AC or DC circuit or the equipment, an arc suppressing apparatus used to suppress electric arc generated while separating the overvoltage protection component from the AC or DC circuit or the equipment, and a box, Wherein: the release unit comprises a compression spring, a metal dome, a slide and a soft conductor; the arc suppressing apparatus comprises an arc chute assembly, a first arc striking sheet, a second arc striking sheet, a turning block and a torsional spring.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: March 15, 2016
    Assignee: SICHUAN ZHONGGUANG LIGHTNING PROTECTION TECHNOLOGIES CO., LTD.
    Inventors: Tianmi Li, Xueying Wang, Wei Wang, Yi Ren, Guohua Yang
  • Patent number: 9158770
    Abstract: An apparatus and method for cloud-based storage, retrieval and sharing of files tagged with barcodes and alphanumeric coding is provided. This application and method includes: either scanning a barcode by mobile device or inputting a code into a computer; decoding of the code or barcode provided, by installed application; accessing, by a cloud based storage system which hosts the associated or tagged file; and retrieving the file associated with the barcode or alphanumeric code. This method also includes a process by which: either by smart phone or personal computer; uploading or storing of files onto a cloud-based storage system; tagging of those stored files with a unique bar code and alphanumeric code; generating a barcode and alphanumeric code to associate with those tag files; and a method of transmitting barcodes or alphanumeric codes between smart phone users or computer uses for the purposes of sharing.
    Type: Grant
    Filed: February 5, 2013
    Date of Patent: October 13, 2015
    Inventor: Robert Beadles
  • Patent number: 9153399
    Abstract: An arc baffle includes a first baffle member having a number of first venting holes disposed therein, each being structured to receive ionized gases produced by an arcing event; a second baffle member having a number of second venting holes disposed therein; a section of porous material disposed between the first baffle member and the second baffle member; and a cover disposed adjacent the second baffle member on the opposite side of the section of porous material. The first venting holes are laterally spaced from the second venting holes by a predetermined distance such that ionized gases produced by the arcing event passing through one of the first venting holes must travel at minimum the predetermined distance generally along the section of porous material before passing through one of the second venting holes.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: October 6, 2015
    Assignee: EATON CORPORATION
    Inventors: Farhad Afshari, James Alan Trax, Jason Eric Basta, Doel Collazo, Anthony John Fishovitz, Raymond Peter Gundy, II
  • Patent number: 9076606
    Abstract: An exemplary magnet arrangement improves the running characteristics of a switching arc generated upon the interruption of a current circuit in a pre-chamber of a low-voltage circuit-breaker, in which the switching arc is directed between two electric arc running rails. The exemplary arrangement includes an open magnetic circuit having a magnetic material and at least one permanent magnet that delivers magnetic flux to the magnetic circuit, with magnetic induction generated in a vicinity of the pre-chamber acting upon the switching arc. The magnetic material can be configured as a U-section sheet metal plate which extends along the length of the pre-chamber and includes a material recess which extends through this pre-chamber metal sheet and is arranged to contain the at least one permanent magnet. The exemplary arrangement is of a simple construction and permits adjustment of magnetic induction acting in the pre-chamber of the low-voltage circuit-breaker.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: July 7, 2015
    Assignee: ABB SCHWEIZ AG
    Inventors: Gerhard Schneider, Thomas Wulf
  • Patent number: 9040864
    Abstract: A profiled arc splitter plate for a switch having a fixed contact and a movable contact is provided to increase electromagnetic attractive forces on the arc generated during contact separation. The plate (300) comprises a body (306) defining an operatively inverted substantially V-shaped recess having a center notch (302) provided at the vertex of the recess and at least one protrusion (304) defined on either side of the center notch (302) along the inclined side walls of the recess, the movable contact of the switch displaceable through the recess without contacting the inclined side walls, in a spaced apart manner from the protrusions (304) and the center notch (302). Chamfers 308 are provided at an end of the plate (300) proximal to the vertex of the recess to provide an exit for hot gases towards the vent of the arc chamber.
    Type: Grant
    Filed: August 31, 2013
    Date of Patent: May 26, 2015
    Assignee: ASCO Power Technologies, L.P.
    Inventor: Varsha Kundalik Kharade
  • Publication number: 20150136740
    Abstract: An arc baffle includes a first baffle member having a number of first venting holes disposed therein, each being structured to receive ionized gases produced by an arcing event; a second baffle member having a number of second venting holes disposed therein; a section of porous material disposed between the first baffle member and the second baffle member; and a cover disposed adjacent the second baffle member on the opposite side of the section of porous material. The first venting holes are laterally spaced from the second venting holes by a predetermined distance such that ionized gases produced by the arcing event passing through one of the first venting holes must travel at minimum the predetermined distance generally along the section of porous material before passing through one of the second venting holes.
    Type: Application
    Filed: November 15, 2013
    Publication date: May 21, 2015
    Applicant: EATON CORPORATION
    Inventors: FARHAD AFSHARI, JAMES ALAN TRAX, JASON ERIC BASTA, DOEL COLLAZO, ANTHONY JOHN FISHOVITZ, RAYMOND PETER GUNDY, II
  • Publication number: 20150129551
    Abstract: Disclosed is a molded case circuit breaker. The molded case circuit breaker includes a case; an interrupter assembly installed in the case, and provided with an arc gas outlet for discharging arc gas generated from inside of the interrupter assembly to outside; an exhaustion guiding portion disposed between the interrupter assembly and the terminal portion, and provided with a discharge chamber therein, to thus provide an arc gas passage between the arc gas outlet and a vent chute of the terminal portion; and an exhaustion cover mounted to the case with a structure to cover the exhaustion guiding portion, to thus block the arc gas passage.
    Type: Application
    Filed: July 31, 2014
    Publication date: May 14, 2015
    Applicant: LSIS CO., LTD.
    Inventor: Bong Yun JANG
  • Publication number: 20150129550
    Abstract: A gas directing system for a circuit breaker is disclosed. The system includes an insulative housing that fits over vents that convey hot gases upon operation of the circuit breaker. The housing has phase partitions that separate phase sections from one another, and transverse partitions that separate a venting sections for each phase from terminal sections. Gas diverting structures are provided in the venting sections that redirect hot gases towards apertures through which the gases vent. The overall structure may be much lower profile than previous design spacing requirements.
    Type: Application
    Filed: November 11, 2013
    Publication date: May 14, 2015
    Applicant: ROCKWELL AUTOMATION TECHNOLOGIES, INC.
    Inventors: Jacek Tomasz Pochopien, Troy Micheal Bellows, Paul T. Krause, Artur Wiertek
  • Publication number: 20150114934
    Abstract: An electrical switching apparatus for bi-directional direct current switching and interruption includes separable contacts, an operating mechanism to open and close the contacts, and an arc chute. The arc chute includes two ferromagnetic side members each having a first side and an opposite second side, the first side of a second ferromagnetic side member facing the first side of a first ferromagnetic side member, a first permanent magnet disposed on the first side of the first side member, a second permanent magnet disposed on the first side of the second side member, and a single set of a plurality of arc splitter plates disposed between the permanent magnets. The permanent magnets are substantially smaller in size than each of the side members. The arc chute is divided into two arc chambers each of which is for a corresponding direction of DC flow through the contacts.
    Type: Application
    Filed: October 30, 2013
    Publication date: April 30, 2015
    Applicant: EATON CORPORATION
    Inventors: MARK ALLAN JUDS, XIN ZHOU, AMOGH VILAS KANK, PAUL JASON ROLLMANN
  • Publication number: 20150084553
    Abstract: A synchronous transfer control system includes an arc resistant enclosure having a main housing having an open top portion and an arc plenum, the arc plenum having a closed front portion, a closed rear portion, and at least one open side portion, and a plurality of synchronous transfer control components housed within the main housing including: (i) a hard bussed first bus structured to be coupled to a first power source, (ii) a second power source, and (iii) a hard bussed second bus, wherein an output of the second power source is able to be selectively coupled to the second bus, wherein the first bus is able to be selectively and individually coupled to each of the motors, and wherein the second bus is able to be selectively and individually coupled to each of the motors.
    Type: Application
    Filed: September 20, 2013
    Publication date: March 26, 2015
    Applicant: EATON CORPORATION
    Inventors: THOMAS A. FARR, BROOK B. BALDWIN, JAMES R. ENLOE
  • Publication number: 20150053648
    Abstract: The present invention relates to an arc extinguishing chamber for an electric protection apparatus comprising an arc formation chamber containing a stationary contact and a movable contact which, at the moment they separate, form an arc between them, said arc formation chamber communicating with the inlet of a second chamber called arc extinguishing chamber, at least one separating wall placed in a volume situated downstream from said arc extinguishing chamber, said wall extending in the direction of the gas flow so as to perform partitioning of the above-mentioned volume in the direction of this flow of the gases, and at least one exhaust outlet enabling the quenching gases to be removed to the outside of the apparatus.
    Type: Application
    Filed: June 5, 2014
    Publication date: February 26, 2015
    Applicant: Schneider Electric Industries SAS
    Inventors: Jean-Claude RAMIREZ, Herve Vallier, Benoit Hage, Loic Rondot
  • Publication number: 20150034601
    Abstract: A switchgear has an interrupter unit that includes an arc gap. A first and a second switching contact piece are movable relative to one another. A switching-gas duct originates in the arc gap and connects the arc gap to the surroundings of the interrupter unit. A hollow vessel arrangement delimits at least some sections of the switching-gas duct and is connected to one of the contact pieces. The hollow vessel arrangement includes an external outlet opening for the switching-gas duct.
    Type: Application
    Filed: February 5, 2013
    Publication date: February 5, 2015
    Inventors: Radu-Marian Cernat, Volker Lehmann, Andrzej Nowakowski
  • Patent number: 8933359
    Abstract: A method of manufacturing a power contactor from an existing contactor having a magnetic amplifier that comprises a blowout coil and a ferromagnetic core, and an arc chute for extinguishing an arc generated by opening the existing contactor under a current load is disclosed. The method includes removing a bolt assembly from the existing contactor and at least one side plate from the existing contactor. The method also includes removing the ferromagnetic core from the existing contactor.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: January 13, 2015
    Assignee: Progress Rail Services Corp
    Inventors: John Franklin Kral, Sidarta Fornari Beltramin
  • Publication number: 20140374384
    Abstract: An electrical switch is disclosed including a rotatably mounted contact bridge which includes a movable contact, wherein the movable contact interacts with a stationary contact of the electrical switch for the purpose of closing or opening the electrical circuit as a result of rotation of the contact bridge. In at least one embodiment, the surfaces at the point at which contact is made between the movable contact and the stationary contact are at least partially covered by a protective material for protecting against soiling and/or damage due to contact-erosion materials, wherein the protective material is a paper-like fleece.
    Type: Application
    Filed: March 26, 2014
    Publication date: December 25, 2014
    Applicant: Siemens Aktiengesellschaft
    Inventors: Jörg BORGOLTE, Andreas HAIDER, Michael SOUKUP
  • Patent number: 8912461
    Abstract: An arc chute assembly includes a housing having a first wall, a second wall, and a pair of side walls coupled to the first wall. The walls configured to form an arc area. The housing further having a divider wall coupled to the first wall between the side walls. The divider wall configured to form a first sub-arc area, a second sub-arc area, and an arc plate area. The first sub-arc area and the second sub-arc area are configured to be in flow communication with the arc plate area. The arc chute assembly further comprises a support coupled to the first wall and the side walls, and an arc plate coupled to the support. The arc plate having a body extending between the side walls and over the divider wall.
    Type: Grant
    Filed: January 23, 2012
    Date of Patent: December 16, 2014
    Assignee: General Electric Company
    Inventors: Mahesh Jaywant Rane, Jayesh Mavji Maru, Simhadri Ramalingeswara Rao Gupta
  • Publication number: 20140339196
    Abstract: There is provided an arc extinguishing unit of a molded case circuit breaker (MCCB) having a structure in which grids and side plates forming an arc chamber are coupled in an inserted manner, facilitating an operation, and intervals of grids are uniformly maintained and a configuration of the grids is not damaged, thus maintaining stable performance and allowing for maintenance.
    Type: Application
    Filed: April 11, 2014
    Publication date: November 20, 2014
    Applicant: LSIS CO., LTD.
    Inventor: In Su SEO
  • Patent number: 8866034
    Abstract: A circuit interrupter for cooling and quenching an electrical arc having a housing with a first contact and a second contact movable with respect to the first contact. An arc splitter is located in an arcing chamber, and an arc runner is located near the second contact. The arc runner has an arc strap facing toward the first contact, a first wall shaped as a rectangular spiral perpendicularly extending from the arc strap, a second wall shaped as a rectangular spiral perpendicularly extending from to the arc strap and opposite the first wall. The arc runner generates a magnetic force on the arc forcing the arc toward the arc splitter.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: October 21, 2014
    Assignee: Carling Technologies, Inc.
    Inventor: Michael Fasano
  • Publication number: 20140263189
    Abstract: A circuit interruption device includes at least one constriction zone. The constriction zone provides for interference with arcing of an electrical signal. The device may include at least one expansion zone. The device may include at least one movable component to assist in creation of the at least one constriction zone. A method of fabrication is provided.
    Type: Application
    Filed: March 12, 2013
    Publication date: September 18, 2014
    Inventors: Michael Lavado, Eric Morrison, William Bentley, Peter Berg, Keith Kawate, Thomas Gasper, Keith Singer, Keith Washburn, Joseph L. Medeiros, Chistian Pellon
  • Publication number: 20140263188
    Abstract: A circuit breaker including a pair of separable contacts and an arc chamber is provided. The separable contacts include a fixed contact having an upper surface. The arc chamber includes magnetic members disposed on either side of the separable contacts. The magnetic members have a lower surface below the fixed contact upper surface.
    Type: Application
    Filed: March 13, 2013
    Publication date: September 18, 2014
    Applicant: EATON CORPORATION
    Inventors: Xin Zhou, Richard Paul Malingowski, Kelly Julia McCarthy, David E. Little
  • Patent number: 8829380
    Abstract: The disclosure relates to an arc chute for a medium voltage circuit breaker having a housing, at least one stack of a plurality of substantially parallel metal plates arranged in the housing, the at least one stack defining a first axis in parallel to a stacking direction; an arc space arranged in the housing, wherein the arc space is adapted to allow an arc to expand therein; and at least one arc quenching plate disposed in the housing, wherein the arc guiding plate has at least one surface which has a surface plane extending in parallel to the first axis. Further, the present disclosure relates to a circuit breaker having a switching unit with a first switch contact and a second switch contact, movable between a first position, wherein the first switch contact contacts the second switch contact, and a second position, wherein the first switch contact is separated from the second switch contact, and an arc chute.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: September 9, 2014
    Assignee: ABB Technology AG
    Inventors: Philippe Haeberlin, Philippe Noisette, Yoann Alphand
  • Patent number: 8803021
    Abstract: A switch unit for a DC circuit is disclosed, which includes a first switch contact, and a second switch contact, which is movable between a first position, wherein the first switch contact contacts the second switch contact, and a second position, wherein the second switch contact is separated from the first switch contact. A positioning element to position an arc chute on the switch unit, the arc chute comprises a plurality of substantially parallel metal plates, the positioning element arranged to guide an arc, which is created between the first switch contact and the second switch contact, into the arc chute in an arc displacement direction in order to be extinguished. At least one gas emitting element, wherein at an interruption operation of the circuit breaker at its nominal current, the arc between the first switch contact and the second switch contact vaporizes a portion of the gas emitting layer.
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: August 12, 2014
    Assignee: ABB Technology AG
    Inventors: Philippe Noisette, Yoann Alphand, Philippe Häberlin
  • Patent number: 8772665
    Abstract: A circuit breaker having an arc extinguishing mechanism includes a plurality of grids disposed in a longitudinal direction, each having protruding portions at both ends thereof so as to define a space therebetween, a fixing portion to support the grids, insulating plates fixed to both sides of the grids, a stator located below the grids, the stator including an arc runner and a stationary contact disposed at an upper side of the arc runner, and a mover contactable with or separated from the stationary contact with moving up and down within the space, wherein an interval between the insulating plates within the space is shorter than a width of the mover.
    Type: Grant
    Filed: January 6, 2012
    Date of Patent: July 8, 2014
    Assignee: LSIS Co., Ltd.
    Inventor: Young Gyu An
  • Patent number: 8742278
    Abstract: A switchgear device, for breaking a bidirectional direct current in an electric line, having at least two connection terminals, and an even number of pairs of separable contacts, arc chutes associated with pairs of separable contacts, and tripping mechanisms associated with pairs of separable contacts and connected to one another by a mechanical link, each arc chute having an arc extinguishing chamber and permanent magnets for creating a polarity enabling an electric arc to be removed to an arc extinguishing chamber when current is flowing in the electric line in a predefined direction, the predefined direction being different for one half of the arc chutes.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: June 3, 2014
    Assignee: Schneider Electric Industries SAS
    Inventors: Eric Domejean, Serge Paggi
  • Patent number: 8711547
    Abstract: A contact bus bar assembly for supplying power to a load, and further pertains to a switching device which can be connected to such a compact bus bar assembly, and to a power distribution system. The bus bar assembly includes at least two electrically conductive tracks which are at least partly covered by an electrically insulating cover. An outer surface of said insulating cover is provided with a plurality of ribs arranged in a region connecting pin terminals. The switching device may additionally comprise a separating element provided with a plurality of second ribs.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: April 29, 2014
    Assignee: Rockwell Automation AG
    Inventors: Thomas Strebel Marzano, Willy Feller
  • Patent number: 8681482
    Abstract: This disclosure describes examples of an apparatus to enclose components of a switching assembly of an automatic transfer switch. In one embodiment, the apparatus, or arc chamber cover, has a housing made of material with optical properties that permit observation of the interior of the housing. A mounting assembly couples to the housing. The mounting assembly secures the apparatus to the automatic transfer switch. In one example, the mounting assembly comprises feet comprising a material with mechanical properties that can withstand pressure and other forces inside of the interior chamber. The apparatus also includes one or more baffles to control the flow of gasses and control electric arcs within the switching assembly.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: March 25, 2014
    Assignee: General Electric Company
    Inventors: Suresh Srikantaiah, Arthur Michael Evans, Sudarshan Allada, Pravin Pralhad Kulkarni
  • Patent number: 8642913
    Abstract: A venting assembly is provided for an arc chute of an electrical switching apparatus, such as a circuit breaker. The circuit breaker includes a housing and separable contacts. An arc and ionized gases are generated in response to the separable contacts tripping open. The arc chute includes a plurality of arc splitters each having first and second opposing sides, an interior passage, and an exterior. The venting assembly includes a first portion coupled to the first side of at least one of the arc splitters and including a venting segment with first venting apertures. A second portion is coupled to the second side and includes a second venting segment having second venting apertures. The first and second venting segments are spaced from the exterior of the arc splitters to form first and second cooling chambers for cooling the ionized gases. The first and second venting apertures vent the ionized gases.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: February 4, 2014
    Assignee: Eaton Corporation
    Inventor: James Gerard Maloney
  • Patent number: 8638184
    Abstract: An arc chute for a DC circuit breaker is disclosed which includes at least one stack of a plurality of substantially parallel metal plates, the at least one stack defining a first axis A in parallel to a stacking direction; an arc space adapted to allow an arc to extend along the first axis, wherein a second axis traversing in parallel to the metal plates the at least one stack and the arc space substantially orthogonal to the first axis. Further, an arc-chute housing having at least one side wall, the at least one side wall being substantially parallel to the second axis, wherein the distance between the at least one sidewall and the metal plates is, for example, less than 5 mm, such as less than 2 mm.
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: January 28, 2014
    Assignee: ABB Technology AG
    Inventors: Philippe Noisette, Yoann Alphand, Marc Blanc
  • Patent number: 8604377
    Abstract: Disclosed is an automatic transfer switch. According to the exemplary embodiment of the present invention, the automatic transfer switch alternatively supplying power from a commercial power terminal and an emergency power terminal to load terminals by moving a pair of movable contactors, wherein at least one of the pair of movable contactors are integrally formed with the commercial power terminal or the emergency power terminal through a wire made of a flexible material.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: December 10, 2013
    Assignee: Vitzrotech Co., Ltd
    Inventors: Choong-Hyun Lee, Jung-Woo Lee
  • Publication number: 20130265693
    Abstract: A medium or high-voltage circuit breaker is provided. An arc-extinguishing fluid is stored in a pressure chamber, which is made up by an arcing chamber of the circuit breaker where an electrical arc is extinguished. No tubings or other conduction devices for pressurized fluids are necessary during current interruption. This speeds up contact separation and arc extinguishing. In a first, closed position of the circuit breaker, the pressure chamber is delimited by a sealing wall which is fixed to a movable first arcing contact. The sealing wall acts as a valve and as a piston at the same time, because it opens the outflow of pressurized arc extinguishing fluid and it concurrently actuates arcing contact separation. The arcing chamber enables the stored pressurized arc extinguishing fluid to perform fast contact separation within a few milliseconds and extinguishing a gaseous arc on the same timescale.
    Type: Application
    Filed: April 5, 2013
    Publication date: October 10, 2013
    Applicant: ABB Technology AG
    Inventors: Emmanouil PANOUSIS, Marcelo BUFFONI, Markus BUJOTZEK, Bernardo GALLETTI