| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 200500210 | Drawout-type switchgear | 78 |
| 20090152079 | SWITCHING DEVICE FOR AN ELECTRICAL SWITCHGEAR ASSEMBLY FOR ENERGY DISTRIBUTION - A switching device for an electrical switchgear assembly for power distribution includes a grounding function unit including a first moving control element selectably moveable to a first manual operation position and an isolation function unit including a second moving control element selectably to a second manual operation position. The grounding function unit is selectable to a manual operation state by moving the first moving control element to the first manual operation position, and the isolation function unit function unit is selectable to a manual operation state by moving the second moving control element to the second manual operation position. When the manual operation state is selected for one of the grounding and isolation function units, selection of the other of the grounding and isolation functional units to the manual operation state is blocked by a respective one of the first and second moving control elements. | 06-18-2009 |
| 20090255788 | SPRING DISCHARGE MECHANISM FOR CIRCUIT BREAKER - A spring discharge mechanism for a circuit breaker is provided. The mechanism includes two linkages for crashing or discharging the circuit breaker compression springs to allow the circuit breaker to be used in either fixed breaker installation or in an installation having a drawout mechanism. The secondary mechanism includes a manual activation linkage that couples with an interface plate. The interface plate is coupled to an opening latch shaft and a closing latch shaft that cooperates to discharge the circuit breaker compression springs. An interface lever is also coupled to the interface plate. The interface lever includes a roller that interacts with a pivoting cam lever coupled to a drawout mechanism. The cam lever interacts with the roller causing the interface lever to rotate the interface plate, the opening latch shaft and the closing latch shaft. | 10-15-2009 |
| 20090255789 | DRAW OUT CIRCUIT BREAKER ASSEMBLY HAVING A TELESCOPIC RACKING HANDLE - A draw out circuit breaker assembly which includes a draw out circuit breaker having a plurality of contacts configured for connecting and disconnecting an electrical power source to an electrical load, a breaker cassette including a draw out support plate housing operational components of the draw out circuit breaker, and a port, and a collapsible telescopic racking handle stored collapsed in the port after the draw out circuit breaker is racked into the breaker cassette. | 10-15-2009 |
| 20100025201 | APPARATUS INCLUDING A CIRCUIT BREAKER RETAINING MECHANISM FOR USE IN WITHDRAWABLE CIRCUIT BREAKERS AND METHOD OF OPERATING THE SAME - A draw-out type circuit breaker apparatus is provided and includes a base from which a circuit breaker is selectively dismounted and moved along a first portion of a dismounting path into a disconnected position, a plate, fixed to the base, which is configured to guide the movement of the circuit breaker along the dismounting path, and a toggle link, coupled to the plate and biased to remain in a locking position, which is configured to block the circuit breaker from moving along the dismounting path beyond the disconnected position while the toggle link remains in the locking position, and to cause the circuit breaker to freely move from the disconnected position and along a second further portion of the dismounting path upon a temporary defeat of the bias thereof. | 02-04-2010 |
| 20100025202 | Secondary Disconnect For Circuit Breaker Drawout System - A secondary disconnect for a circuit breaker drawout system is provided. The secondary disconnect includes a plurality electrical connectors that are coupled to spacer frames. The spacer frames are movably mounted to guide pins that couple the secondary disconnect to the circuit breaker. A compression spring is disposed about the guide pin and bias's the secondary disconnect. A second spring positioned within the spacer frame applies a biasing force when the circuit breaker is in the racked-in position. | 02-04-2010 |
| 20100072039 | Seal Apparatus for Circuit Breaker Application - A seal apparatus is disposed between a switchgear cabinet and a circuit breaker between the racked and unracked positions of the circuit breaker. The seal apparatus sealingly extends between the switchgear cabinet and the circuit breaker to resist fluid flow, such as exhaust gases and other matter, between an interior region of the switchgear cabinet and the exterior of the switchgear cabinet. | 03-25-2010 |
| 20100230256 | APPARATUS FOR PREVENTING WITHDRAWING OR INSERTING OF CARRIAGE IN CIRCUIT BREAKER - An apparatus for preventing withdrawing and insertion of a carriage of a circuit breaker is disclosed. When a circuit breaker main body is inserted, an interlocking unit operates by interworking with the carriage withdrawing and inserting preventing apparatus, and while the circuit breaker is being closed, a withdrawal and insertion handle prevents a lead screw from being rotated by the interlocking unit. Thus, when the circuit breaker performs a closing operation, unnecessary withdrawing and inserting operation of the carriage is basically prevented to thus prevent various safety accidents, a contact resistance, a temperature increase, and damage to a device resulting from a breakdown. | 09-16-2010 |
| 20110147172 | INTERLOCK APPARATUS OF GROUND SWITCH FOR VACUUM CIRCUIT BREAKER - Provided herein is an interlock apparatus for preventing the drawing-in or drawing-out of a vacuum circuit breaker main body in interlock with the ground operation of a ground switch in a vacuum circuit breaker, and the ground switch interlock apparatus of the vacuum circuit breaker comprising: a drive spindle; a movable plate movable to a manipulation handle connection allowance position or a manipulation handle connection prohibition position; a first interlock plate that moves the movable plate to the manipulation handle connection allowance position or the manipulation handle connection prohibition position; and a second interlock plate to be moved to a position for locking the first interlock plate at the manipulation handle connection prohibition position when the ground switch is at a ground position and a position for releasing from the restraint of the first interlock plate when the ground switch is not at the ground position. | 06-23-2011 |
| 20110155545 | PLUG INTERLOCK DEVICE FOR CIRCUIT BREAKER AND CIRCUIT BREAKER HAVING THE SAME - Disclosed are a plug interlock device for a circuit breaker and a circuit breaker having the same, wherein a plug is not allowed to be separated from a connector while a breaker main body is moved from a test position to a run position or is running at the run position, thereby obviating the plug from being unexpectedly unplugged from the connector while the breaker main body is moved from the test position to the run position or is running, resulting in preventing a safety accident in advance. | 06-30-2011 |
| 20130020182 | MEDIUM-VOLTAGE SWITCHGEAR ASSEMBLY HAVING A SHORT-CIRCUITING UNIT - A voltage switchgear assembly is disclosed, which includes a short-circuiting unit having short-circuiting devices arranged as a three-phase unit. A support is configured to receive the short-circuiting unit and is configured to be inserted into and withdrawn from an openable section of a switchgear assembly housing. | 01-24-2013 |
| 20130206554 | INTERLOCK SYSTEM FOR SWITCHGEAR - An interlock system for a circuit-interrupting device. The circuit-interrupting device includes a gearbox, a load-breaker in series with a visible disconnect, and an assembly driving the visible disconnect between an open state and a closed state. The interlock system includes a cam and a bias-driven follower. The cam is coupled to a shaft and is driven by the shaft between a first cam state when the load-breaker is in an open state and a second cam state when the load-breaker is in a closed state. The bias-driven follower has a first follower state when the cam is in the first cam state and has a second follower state when the cam is in the second cam state. In the second follower state, the bias-driven follower blocks movement of at least one component of the assembly. The cam and the bias-driver follower are positioned inside the gearbox. | 08-15-2013 |
| 20140246294 | LINEAR ACTUATING EARTHING SWITCH - A linear actuating earthing switch configuration that moves movable contacts using linear motion in a single axis. The earthing switch includes a frame with a rail on a slide wall. A sliding carriage slides on the rail in a linear direction, the sliding carriage including a plurality of movable contacts. A stored energy element provides a linear expansion force between the frame and the sliding carriage when the earthing switch is in an open position. | 09-04-2014 |
| 20160020053 | RETRACTABLE CONNECTOR FOR A SINGLE VERTICAL MAIN BUS STACK PANEL BOARD MOTOR STARTER - A retractable connector assembly for establishing an electrical connection to a power bus bar from an electrical device is disclosed. The retractable connector assembly includes a frame plate and a sled. The sled has a rack and a connector assembly having an electrical contact. The sled has an extended position and a retracted position relative to the frame plate. A spur gear is mounted on the frame plate. The spur gear engages the rack to move the sled between the retracted position and the extended position when the spur gear is rotated. The electrical contact creates an electrical connection with the power bus bar when the sled is in the extended position but not in the retracted position. Safety interlocks and indicia can be provided for the connector assembly. | 01-21-2016 |
| 20160141134 | PLUG-ON NEUTRAL CONNECTION - A plug-on neutral circuit breaker includes a housing, a neutral terminal, and a biasing member. The neutral terminal is pivotally coupled to the housing and includes a body portion, a first leg, and a second leg. The first leg extends from the body portion in a first direction and the second leg extends from the body portion in a second direction. The biasing member is positioned within the housing and is configured to engage the second leg of the neutral terminal, thereby biasing the neutral terminal in a first rotational direction. The biasing of the neutral terminal in the first rotational direction causes a portion of the first leg of the neutral terminal to be urged into contact with a neutral bar of an electrical distribution apparatus in response to the plug-on neutral circuit breaker being installed in the electrical distribution apparatus. | 05-19-2016 |
| 200500220 | Shutter over contacts | 7 |
| 20120228095 | FLEXIBLE COVER FOR CONTACTS OF A PLUG-IN OR WITHDRAWABLE UNIT - A shutter for insulating electrical contacts includes a first panel having a first opening and a second panel having a second opening. The first opening is offset from the second opening when the shutter is in a closed position. The second panel includes a first guide configured to react to a pressure of a phase barrier of an insertable withdrawable unit thereon to move the second panel in a first sliding direction relative to the first panel such that the first and second openings align so as to allow an electrical contact to extend therethrough. A spring housing having a spring disposed therein between at least two support legs is slidably disposable in the first panel and extends through the second panel. | 09-13-2012 |
| 20120228096 | INTERLOCK DEVICE OF DRAW-OUT TYPE CIRCUIT BREAKER, DRAW-OUT TYPE CIRCUIT BREAKER, AND POWER DISTRIBUTION BOARD - An interlock device of a draw-out type circuit breaker, provided with a tripping button that is linked to a tripping mechanism of the draw-out type circuit breaker and an interlock rod that is placed so as to be movable up and down, and constructed so that the tripping button mechanically prevents an operation to raise the interlock rod unless the tripping button is operated to place the draw-out type circuit breaker in the open state, so a power distribution board floor surface or a member fixed on the power distribution board floor surface and the interlock rod interfere with each other, thereby the draw-out type circuit breaker is fixed at a prescribed position in a power distribution board. | 09-13-2012 |
| 20120247932 | Electrical System Having Withdrawable Electrical Apparatus and Shutter Assembly - A shutter assembly is provided for an electrical system including at least one withdrawable electric apparatus, such as a circuit breaker, and an electrical bus member. A protruding structure of the circuit breaker is removably coupled to a corresponding primary contact of the electrical bus member to electrically connect the circuit breaker and the electrical bus member. The shutter assembly includes a pair of cover members that are pivotably movable between a first position in which the corresponding primary contact of the electrical bus member is isolated, and a second position in which the circuit breaker is connected with the primary contact and the electrical bus member. | 10-04-2012 |
| 20140090963 | SHUTTER LOCKING MECHANISM FOR CIRCUIT BREAKER ASSEMBLY - In one embodiment, a shutter lock assembly for a circuit breaker cassette having a shutter coupled to a shutter rod is provided. The shutter lock assembly includes a lock plate assembly configured to couple to the circuit breaker cassette and an actuation mechanism having a first end coupled the lock plate assembly. The actuation mechanism is configured to actuate the lock plate assembly to lock the shutter of the circuit breaker cassette in a closed position. | 04-03-2014 |
| 20140190801 | SHUTTER SYSTEM FOR A SWITCHGEAR COMPARTMENT AND METHOD OF MANIPULATING A SHUTTER SYSTEM - A shutter system for a switchgear compartment includes a moveable shutter translatable between a closed position and an open position. Also included is a pusher operatively coupled to a first side of the moveable shutter and configured to impart a force on the moveable shutter in response to an insertion of an electrical device within the switchgear compartment. Further included is a cam member having a cam shaft operatively coupled to the moveable shutter, the cam shaft having a cam track. Yet further included is a bell crank configured to guide along the cam track and translate the moveable shutter between the closed position and the open position. | 07-10-2014 |
| 20150083556 | SHUTTER DEVICE FOR AN ELECTRICAL SWITCHGEAR PANEL, AND RELATED SWITCHGEAR PANEL - A shutter device is disclosed for an electric switchgear panel, including a base configured to be placed on a bearing surface inside the switchgear panel, the base being adapted to support, positioned thereon, a current switching device movable between a connected position wherein the switching device is electrically connected to an associated electrical circuit and a disconnected position wherein the switching device is electrically separated from the corresponding electrical circuit, a frame having at least a portion which rises up transversally from the base and delimits a through aperture, a movable shutter operatively associated with the base and the frame and an actuating mechanism adapted to move the shutter between a first position where the shutter closes at least partially the through aperture and a second position wherein the shutter is retracted and leaves the through aperture at least partially opened. | 03-26-2015 |
| 20160036204 | INDEPENDENT SHUTTER SYSTEM FOR RACK-IN BREAKERS - A switchgear interlock system includes a circuit breaker with clusters of connector fingers separated from each other by respective cluster shields. In a connected position, the connector fingers engage respective bus connectors of bus bars for electrical contact. When the circuit breaker is disconnected from the bus bars, independently movable shutters cover access to the bus connectors to prevent inadvertent contact with the bus connectors. Each shutter includes a pedestal with an attached movable mount and movable curtain. As the circuit breaker is moved into the connected position, the mount slides along the pedestal towards the bus connector causing the curtain to open and allow the connector fingers to engage the bus connectors. As the circuit breaker is being disconnected, a return spring causes the mount to slide along the pedestal away from the bus connectors causing the curtain to close and prevent access to the bus connectors. | 02-04-2016 |
| 200500230 | Truck type | 7 |
| 20100236904 | ELECTRIC SWITCHGEAR - Electric switchgear comprising a casing having at least one compartment provided with a door, a plurality of electrical conductors suitable to be connected to a load, a multi-phase switching device which is mounted on a truck movable inside the compartment between a connected position wherein each phase of the switching device is electrically connected to a corresponding electrical conductor and a withdrawn position wherein each phase of the switching device is electrically separated from the corresponding electrical conductor, and an earthing switch comprising a plurality of contacts for connecting to earth the plurality of electrical conductors. The earthing switch is actuated to move between a first position wherein each contact is electrically connected to a corresponding electrical conductor and a second position wherein each contact is electrically separated from the corresponding electrical conductor by the movement of the truck between the connected position and the withdrawn position. | 09-23-2010 |
| 20120228097 | METHOD AND SYSTEM FOR RETROFITTING A CIRCUIT BREAKER - A retrofit assembly and method of retrofitting a circuit breaker in a switchgear are described. The retrofit assembly can includes one or more adjustable elements for fitting a circuit breaker into a switchgear panel of the switchgear. The adjustable elements can include a plurality of adjustable modular female tulip contacts to receive a corresponding plurality of male contacts in a panel of the switchgear, each female tulip contact being flexible for a plurality of diameters, a plurality of modular phase adjustment contact arms to provide phase alignment between the poles of the circuit breaker, and/or an adjustable truck for placing the circuit breaker in contact with a rack for the circuit breaker in the switchgear. | 09-13-2012 |
| 20150101913 | ROLL ON THE FLOOR CIRCUIT BREAKERS AND RELATED KITS AND METHODS - Roll on floor (ROF) circuit breakers include a plurality of support wheels configured to contact a support surface as the ROF circuit breaker is moved between locations. The support wheels have a rocker configuration whereby weight of the ROF circuit breaker is transferred between different sets of the wheels during movement to thereby facilitate ease of movement. | 04-16-2015 |
| 20150114807 | WITHDRAWABLE CONTACTOR TRUCKS WITH INTEGRAL MOTORIZED LEVERING-IN, RELATED SWTICHGEAR, KITS AND METHODS - Withdrawable contactor trucks for a circuit breaker have a cradle with a motorized drive system comprising an electric motor in the cradle. The motorized drive system is configured to move the contactor truck in a controlled path between a withdrawn position and a levering-in position in a switchgear compartment. | 04-30-2015 |
| 20160126036 | INTERLOCK APPARATUS OF VACUUM CIRCUIT BREAKER - There is provided an interlock apparatus of a vacuum circuit breaker for adjusting withdrawal of a circuit breaker main body, which is installed in a truck and moves to a connected position in which the circuit breaker main body is connected to a cradle and moves to a disconnected position in which the circuit breaker main body is separated from the cradle within the cradle, to outside of the cradle, includes: a lift including a rotation adjusting plate provided on an upper portion thereof, and moving forwardly and backwardly such that the rotation adjusting plate is inserted into the interior of the cradle or separated from the cradle; and an interlock plate provided within the cradle and rotating according to movement of the rotation adjusting plate so as to be tightly attached to the truck or released from the tightly attached state to thereby adjust withdrawal of the circuit breaker main body to the outside of the cradle. | 05-05-2016 |
| 20160164267 | TRANSPORTATION DEVICE OF WITHDRAWABLE CIRCUIT BREAKER - The present invention relates to a transportation device of a withdrawable circuit breaker, and more particularly, to a transportation device of a withdrawable circuit breaker capable of simultaneously moving right and left handles of a girder assembly for restricting movement of the transportation device or releasing a restricted state. The transportation device of a circuit breaker includes: a truck assembly on which a body of the circuit breaker is loadable; a body plate of a girder assembly installed on a front surface of the truck assembly; a pair of sliding plates slidably installed in the body plate; and a rotation plate having both sides to which leg portions of the sliding plates are rotatably coupled, respectively, wherein the rotation plate is inserted into a lead screw penetratingly-formed at a central part of the girder assembly. | 06-09-2016 |
| 20170237241 | WITHDRAWABLE CONTACTOR TRUCKS WITH INTEGRAL MOTORIZED LEVERING-IN, RELATED SWITCHGEAR, KITS AND METHODS | 08-17-2017 |
| 200500240 | With racking mechanism | 38 |
| 20080257694 | BREAKER RACKING TOOL - Disclosed is a racking tool for use with a breaker having a frontwardly-projecting racking screw, the screw being rotatable, about a frontwardly-orientated screw axis, between connected and disconnected positions. The racking tool comprises: a gripping tool that, in use, engages said screw and is rotatable about the screw axis to drive the screw between the connected and disconnected positions; an angle drive mechanism coupled to the gripping tool: and a shaft having a first end operatively coupled to the drive mechanism, a second end and a shaft axis extending from the first to the second end, the shaft, in use, being angularly orientated to the screw axis and adapted such that, with the gripping tool engaged with said racking screw, the screw can be rotated between the connected and disconnected positions by a user standing to one side of the breaker and rotating the shaft about its axis. | 10-23-2008 |
| 20090000925 | CIRCUIT BREAKER CRADLE WITH AN INTERLOCK SYSTEM AND A METHOD OF USING THE SAME - A cradle and a method for adapting a circuit breaker for mounting in a switchgear cabinet having a bus bar system. The cradle includes a frame to which a racking apparatus and a locking apparatus are mounted. The racking apparatus is operable to move the cradle into and out of electrical connection with the bus bar system. The locking apparatus has a first operating state, wherein the locking apparatus prevents the circuit breaker from being disposed in the frame and allows the racking apparatus to operate, and a second operating state, wherein the locking apparatus allows the circuit breaker to be disposed in the frame and prevents the racking apparatus from operating. | 01-01-2009 |
| 20090014291 | Remote Racking of Horizontally Displaceable Circuit Breakers - A system for remotely racking a horizontally movable circuit breaker includes a motor as well as a transmission connectible to the motor and to a racking screw for moving the circuit breaker. The system further includes a mounting bracket for holding the transmission and a controller for controlling the motor from a location remote from the circuit breaker. | 01-15-2009 |
| 20100025203 | DRAW-OUT MECHANISM FOR MOLDED CASE CIRCUIT BREAKERS - A draw-out mechanism for a molded case circuit breaker includes a fixed side plate and a plurality of auxiliary contacts mounted to the fixed side plate. The draw-out mechanism also includes a movable member moveably mounted to the fixed side plate. The movable member includes a cam member that acts upon the plurality of auxiliary contacts. The draw-out unit further includes a front panel member having a visual indicator mechanism and a locking mechanism provided with a padlock locking arm, a door lock and a second lever. In addition, the draw-out unit includes a connector plate that operatively couples the movable member and the front panel member. The connector plate includes a plurality of adjustment portions that establish a desired extension of the connector plate relative to the movable member to accommodate a predetermined spacing between the movable member and the front panel member. | 02-04-2010 |
| 20100236905 | ELECTRIC SWITCHGEAR - An electric switchgear comprising a casing having at least one compartment provided with a door, a plurality of electrical conductors suitable to be connected to a load, a multi-phase switching device which is mounted on a truck movable inside the compartment between a connected position wherein each phase of the switching device is electrically connected to a corresponding electrical conductor and a withdrawn position wherein each phase of the switching device is electrically separated from the corresponding electrical conductor, and a mechanism adapted for stopping the switching device in a position intermediate between the connected position and the withdrawn position. | 09-23-2010 |
| 20100294629 | MOVE-OUT TYPE INTERLOCK APPARATUS FOR CIRCUIT BREAKER - Disclosed is an interlock apparatus for a move-out type circuit breaker, capable of automatically discharging elastic energy charged in a closing spring and a trip spring when a main body of the circuit breaker is moved-in or moved-out, the apparatus including, a releasing protrusion member fixed to a predetermined position on a path that the circuit breaker is moved-in or moved-out and protruded upwardly from the predetermined position, an automatic releasing mechanism configured to be moved up by coming in contact with the releasing protrusion member upon moved-in or moved-out the circuit breaker to thereby drive a latching mechanism for latching the closing spring and the trip spring in a charged state to the release position. | 11-25-2010 |
| 20110000768 | SWITCHGEAR AND SWITCHGEAR OPERATING MECHANISM - An embodiment of a switchgear has: a closing shaft; a main lever fixed to the closing shaft and associated with a movable contact; a cutoff spring; a sub-shaft; a sub-lever and a latch lever which are connected to the sub-shaft; a roller pin mounted to the leading end of the latch lever; a latch; a latch returning spring for urging the latch; a latch pin fixed to the latch; and a ring mounted to the latch pin so as to be movable in the radial direction of the latch pin. In the closed state, the roller pin presses the leading end of the latch. In power cutoff operation, latch is pulled so as to permit rotation of the latch, engagement between the roller pin and the leading end of the latch is disengaged, and the sub-shaft is rotated by urging by the cutoff spring. | 01-06-2011 |
| 20110005906 | APPARATUS FOR CONTROLLILNG ELECTRICAL SWITCHGEAR - A control apparatus for controlling electrical switchgear, the control apparatus being designed such that it is capable of performing the following in succession:
| 01-13-2011 |
| 20110062002 | CIRCUIT BREAKER RACKING APPARATUS, SYSTEMS, AND METHODS OF USING SAME - Embodiments provide a circuit breaker racking apparatus having a frame configured to couple to a switchgear section configured to receive a circuit breaker; a coupling operable to couple to a racking handle of the circuit breaker to be racked to or from the switchgear section; and a drive member coupled to the coupling and remotely operable to rotate the coupling and racking handle to accomplish racking of the circuit breaker. System and method aspects are provided, as are other aspects. | 03-17-2011 |
| 20110073446 | SWITCHGEAR AND SWITCHGEAR OPERATING MECHANISM - According to an embodiment, a switchgear operating mechanism has a roller pin rotatably fixed to a leading end of a latch lever. A latch is fixed to a solenoid lever at a position different from the rotation axis of the solenoid lever, and has a leading end engageable with the roller pin. In a state where the switchgear operating state is shifted from the closed state to the cutoff state, the solenoid lever is pushed by an electromagnetic solenoid for cutoff so as to be rotated in an opposite direction to the biasing direction of the solenoid lever return spring, and the latch lever is rotated by a biasing force of the roller pin to release an engagement between the roller pin and the leading end of the latch, which causes a cutoff spring to discharge its energy to rotate the latch lever. | 03-31-2011 |
| 20110214968 | OUTSIDE THE DOOR RACKING AND INTERLOCK - An assembly that prevents a circuit breaker from being racked into and out of a switchgear compartment unless the compartment door is closed completely. A coupling member protrudes through the door and has an exposed hexagonal-shaped end to receive a socket of a racking tool. When the door is closed, a recess of the coupling member receives a drive shaft that has a drive pin through it. The drive pin slides into a slot formed in the recess of the coupling member such that when the racking tool cranks the coupling member, the coupling member in turn cranks the drive shaft as the drive pin engages the slot in the coupling member. However, when the door is open, the coupling member is separated from the drive pin so rotating the coupling member does not turn the drive shaft. An optional padlock and deadbolt assembly provides added security against unauthorized access to the tool-receiving end of the coupling member. | 09-08-2011 |
| 20110278141 | ELECTRICAL SWITCHING APPARATUS, AND LEVERING ASSEMBLY AND POSITION INDICATOR ASSEMBLY THEREFOR - A position indicator assembly is provided for a levering assembly of an electrical switching apparatus, such as a circuit breaker. The levering assembly includes a drive shaft and a racking member movably coupled to the circuit breaker housing. The drive shaft cooperates with the racking member to facilitate racking the circuit breaker into and out of a cassette. The position indicator assembly includes a number of indicator gears cooperating with the drive shaft, an indication rack cooperating with the indicator gears, and an indicator cooperating with the indication rack to provide a visual indication indicative of the position of the circuit breaker with respect to the cassette. When the circuit breaker is moved with respect to the cassette, the drive shaft pivots. In response, the indicator gears move, thereby moving the indication rack and the indicator in order to provide the visual indication. | 11-17-2011 |
| 20120024677 | Portable Actuator - Disclosed are various embodiments for a portable actuator for actuating a trip button and a close button of a circuit breaker. In one embodiment, the trip button is actuated by a linear actuator that transmits rotation forces produced by a motor to the trip button in response to a trip signal. The close button is actuated by a rotating arm that uses an anti-friction roller to apply a rotating motion to the close button in response to a close signal. The portable actuator is configured to receive the input signals from a remote location with a remote controller that is in electronic communication with the portable actuator. | 02-02-2012 |
| 20120055765 | PORTABLE REMOTE RACKING DEVICE FOR A CIRCUIT BREAKER - A portable, remote racking device that is controlled by a remote control. The remote racking device includes a drive that fits into a corresponding crank access hole formed in a front panel of a cradle housing a circuit breaker installed into a switchgear. The drive turns a mechanism inside the cradle that causes the circuit breaker to be racked into or out of the switchgear. The remote racking device includes an actuator pin that abuts a corresponding button arm protruding through the front panel. The remote control includes a control for depressing the button arm and another control for causing a motor to rotate the drive. The actuator pin detects when the button arm pops out of the panel, and a circuit in the remote racking device briefly reverses the motor to bring it and the circuit breaker to a sudden stop, preventing the mechanical linkages of the mechanism from locking-up or becoming damaged and avoiding over-torquing the motor. | 03-08-2012 |
| 20120055766 | Circuit Breaker Operating Device - A device is provided for remotely racking circuit breakers and contactors that are housed within a housing structure, such as a circuit breaker cell or switchgear cabinet. | 03-08-2012 |
| 20120067707 | ELECTRICAL SWITCHING APPARATUS AND LEVERING ASSEMBLY THEREFOR - A levering assembly is provided for an electrical switching apparatus, such as a circuit breaker, which is removably disposed in a cassette. The levering assembly includes a mounting member coupled to the housing of the circuit breaker. A drive assembly is coupled to the mounting member and cooperates with the cassette. A powered actuator, such as an electric motor, is disposed on the mounting member and actuates the drive assembly to move the circuit breaker with respect to the cassette. The powered actuator is disposed within the housing of the circuit breaker. The mounting member, drive assembly and powered actuator form a self-contained sub-assembly, which is substantially disposed behind the circuit breaker cover. The levering assembly is operable from a remote location to automatically move the circuit breaker with respect to the cassette, to provide enhanced safety among other benefits. | 03-22-2012 |
| 20120085628 | ELECTRICAL APPARATUS, AND RACKING ASSEMBLY AND COUPLING THEREFOR - A coupling is provided for a racking assembly for racking an electrical apparatus into and out of an enclosure with an actuator. The electrical apparatus includes a housing. The racking assembly includes a safety interlock, which is movable between a locked position, and an unlocked position corresponding to the racking assembly being operable to rack the electrical apparatus into or out of the enclosure. The coupling includes an adapter having a first portion coupled to the racking assembly, and a second portion coupled to the actuator. A sleeve is movably disposed on the adapter. The sleeve moves the safety interlock from the locked position to the unlocked position. When the safety interlock is disposed in the unlocked position, the adapter transfers movement of the actuator to the racking assembly to move the electrical apparatus. | 04-12-2012 |
| 20120152703 | DISCHARGE MECHANISM FOR CIRCUIT BREAKER - A circuit breaker and mechanism are provided for opening circuit breaker contact arms when the circuit breaker is moved between an installed and a withdrawn position in a drawout installation. The circuit breaker has a cross shaft coupled to a first linkage that rotates in response to the circuit breaker being moved. A second linkage translates in response to said first linkage rotating. A cam surface is operably coupled between the cross shaft and the first linkage. An opening latch shaft is coupled between the second linkage and a contact arm assembly such that the opening latch shaft moves the contact arm assembly from a closed position to an open position in response to the translation of the second linkage. | 06-21-2012 |
| 20120193193 | Closed door circuit breaker racking extension - A closed door circuit breaker racking extension assembly is provided which enables a circuit breaker contained within a cell of a switchgear enclosure to be racked-in or racked-out without opening the cell door and without fear of explosive gases and debris being discharged from the cell through the extension assembly of this invention in the event of an arc-fault explosion. | 08-02-2012 |
| 20120211335 | ELECTRICAL SWITCHING APPARATUS, AND RACKING ASSEMBLY AND SECONDARY DISCONNECT ASSEMBLY THEREFOR - A secondary disconnect assembly is provided for a racking assembly of an electrical switching apparatus, such as a circuit breaker. The racking assembly movably couples the circuit breaker to a switchgear enclosure. The secondary disconnect assembly includes a mounting assembly having an elongated mounting member. The elongated mounting member has first and second opposing ends and first and second opposing sides. A sliding assembly is movably coupled to the first side between the first and second ends. A latching member is pivotably coupled to the sliding assembly. The latching member moves between an unlatched position corresponding to the circuit breaker being movable independently with respect to the sliding assembly, and a latched position corresponding to the latching member fixedly coupling the sliding assembly to the circuit breaker in order that the circuit breaker moves with the sliding assembly. The racking assembly may also include a position indicator. | 08-23-2012 |
| 20120305369 | Apparatus and Method for Remotely Racking Circuit Breakers and Contactors - An apparatus, system and method are provided for remotely racking circuit breakers and contactors that are housed within a housing structure, such as a circuit breaker cell or switchgear cabinet, and that function via a levering mechanism. | 12-06-2012 |
| 20130037394 | Constant Force Adapter for Remotely Racking Circuit Breakers and Contactors. - An apparatus and system are provided for remotely racking circuit breakers and contactors that are housed within a housing structure, such as a circuit breaker cell or switchgear cabinet. The apparatus and system are capable of maintaining a constant force on breakers during racking operations. | 02-14-2013 |
| 20130048477 | CIRCUIT INTERCONNECT DEVICE RACKING APPARATUS, RACKING ASSEMBLIES, AND METHODS OF CONNECTING CIRCUIT INTERCONNECT DEVICES - A circuit interconnect device racking apparatus is disclosed. The circuit interconnect device racking apparatus has a body adapted to couple to a circuit interconnect device, one or more frame connectors coupled to the body, a racking lever coupled to the body by a lever pivot, the racking lever having a cam mechanism component, and one or more bus connectors configured to connect to or disconnect from one or more bus bars responsive to rotation of the racking lever. Circuit interconnect device racking assemblies having the circuit interconnect device racking apparatus and methods of connecting circuit interconnect devices to one or more bus bars are disclosed, as are other aspects. | 02-28-2013 |
| 20130264178 | WITHDRAWABLE UNIT FOR AN ELECTRIC SWITCHING DEVICE - A withdrawable unit system for an electric switching device, having a housing containing a access door, which gives access to all control elements of the unit and can be closed as tightly as required by international standards, such as DIN EN 60529. The withdrawable unit system optionally has a moveable unit capable of blocking and releasing the electrical switching device in and from at least three defined positions withdrawn, test and plugged-in by using a slide, a lever, and notches with dedicated notch blocking devices. | 10-10-2013 |
| 20160156164 | WITHDRAWABLE INTERLOCK DEVICE OF VACUUM CIRCUIT BREAKER | 06-02-2016 |
| 200500250 | Racking screw | 13 |
| 20090255790 | RACKING MECHANISM FOR A CIRCUIT BREAKER - Disclosed is a racking mechanism for a drawout circuit breaker including a cross shaft movably positioned in an enclosure and at least one input link in operable communication with the cross shaft via at least one connecting link. At least one racking cam is movably positioned in the enclosure and is in operable communication with the input link. Each racking cam has at least one cam slot receptive of a portion of the circuit breaker. Movement of the cross shaft about an axis of the cross shaft is capable of moving the at least one racking cam from an open position toward a closed position with the portion of the circuit breaker disposed in the at least one cam slot, thereby securing the circuit breaker in the enclosure and the at least one racking cam is in the closed position. A method for securing a circuit breaker in an enclosure and a circuit breaker assembly are also disclosed. | 10-15-2009 |
| 20100025204 | CAM OPERATED SPRING DISCHARGE INTERLOCK MECHANISM - Disclosed herein is a method of moving and altering movement of a breaker mounted spring discharge interlock lever during racking and unracking of a breaker with an enclosure. The method includes, rotating a racking screw to rack the breaker into or out of the enclosure, rotating a shaft in operable communication with the racking screw, translationally moving a cam with a link having one end disconnectably connected to the cam and an opposing end disconnectably connected to a crank, that is fixedly attached to the shaft, translationally moving a cam follower that is in operable communication with the cam, moving the breaker mounted spring discharge interlock lever that is in operable communication with the cam follower, and enabling removal and replacement of the cam by disconnecting the cam from the link, thereby enabling the movement of the breaker mounted spring discharge interlock lever to be altered. | 02-04-2010 |
| 20100230257 | WITHDRAWABLE DEVICE OF MAIN CIRCUIT FOR VACUUM CIRCUIT BREAKER - Disclosed is a withdrawable device of main circuit for a circuit breaker. A ring-shaped guide recess is formed at a central part of a transfer nut screw-coupled to a lead screw, and supporting surfaces are formed on side surfaces of the guide recess. And, rotation prevention pins are elastically supported by springs in a moving direction of the transfer nut, and are selectively locked, thereby allowing the transfer nut to perform an idle operation. Accordingly, a structure for an idle operation of the transfer nut is simplified, and the number of components is reduced. An axial load is attenuated to a plane-contact distributed load, not a point-contact concentrated load, thereby preventing damage of the components. Also, a vacuum circuit breaker has enhanced reliability of the idle operation at a run position and a test position. | 09-16-2010 |
| 20100263995 | THREE POSITION LOCK DEVICE FOR DRAWOUT CIRCUIT BREAKER - A position locking device is disclosed for a draw-out circuit breaker. In at least one embodiment, the position locking device includes a screw rod, a catching plate, a positioning plate, a locking plate, and a push rod. The screw rod has key ways. The catching plate has a catching plate hole and a protrusion that can be inserted into the key ways. Positioning notches for limiting OFF, TEST, and ON positions of the circuit breaker are farmed on the top surface of the positioning plate, and corresponding protruding platforms are disposed on the bottom surface. One end of the locking plate bears against the bottom surface of the positioning plate, and the other end is locked to or unlocked from an outward protruding platform of the catching plate. One end of the push rod passes through the catching plate hole, and has an inclined surface. When the push rod is pushed, the inclined surface makes the catching plate leave the key ways. The position locking device is structurally simple and reasonable, secure, reliable, and convenient to operate. The cost for manufacturing, installing or maintaining the device is lowered. | 10-21-2010 |
| 20100294630 | WITHDRAWABLE DEVICE OF VACUUM CIRCUIT BREAKER - A withdrawable device of a vacuum circuit breaker for transferring a vacuum circuit breaker received in a cradle, includes: a carriage on which the vacuum circuit breaker is loaded; a first transfer unit fixed to the carriage; a second transfer unit installed at one side of the cradle such that it can be driven, and transferring a transfer force to the first transfer unit; and a transfer limiting unit for selectively limiting driving of the second transfer unit. | 11-25-2010 |
| 20100320063 | SWITCHGEAR APPARATUS - A switchgear apparatus is provided in which an impact induced by a close operation is mitigated, featuring space saving and high reliability with low costs. | 12-23-2010 |
| 20100326799 | DEVICE FOR PREVENTING WITHDRAWING AND INSERTING OF A CIRCUIT BREAKER - Disclosed is a device for preventing withdrawing and inserting of a circuit breaker. The device for preventing withdrawing and inserting of a circuit breaker include: a lead screw is coupled between a carriage and a girder assembly and rotated by an external force to allow a breaker body to be closed or released while the carriage is moved with respect to a cradle, and a braking unit preventing the lead screw for operating when the girder assembly is released from the cradle. In an unstable state in which the girder assembly is not coupled to the cradle, a withdrawal handle is prevented from being inserted into the girder assembly. Therefore, an abnormal withdrawing operation can be prevented, and thus, various safety accidents, a contact resistance and temperature rise, damage to a device due to electrical breakdown can be prevented. | 12-30-2010 |
| 20110147173 | WIRELESS REMOTE RACKING MECHANISM - A motorized racking mechanism for racking a circuit breaker into and out of switchgear/board equipment allows for breaker service without operator proximity to the switchgear. A motor fixed to a cradle that receives a circuit breaker is coupled to a power transmission system that turns a control screw. The control screw laterally moves a crown-wheel device that causes the circuit breaker to be moved among a remove, test, and connected positions in response to a button arm being depressed via a front panel of the cradle. The button arm can be depressed under wireless remote control. A solenoid is coupled to a crank detent actuator that includes the button arm, and a wireless module actuates the solenoid, which moves the button arm, causing the motorized movement of the circuit breaker as if the button arm had been manually depressed. Indicator lights are visible on the front panel to indicate the position of the circuit breaker relative to the cradle. | 06-23-2011 |
| 20110192707 | Motor operator for switchgear for mains power distribution systems - A motor operator for switchgear ( | 08-11-2011 |
| 20120118711 | UNDERCARRIAGE AND KEYLOCK ASSEMBLY FOR USE WITH A CIRCUIT BREAKER - An undercarriage for use with a circuit breaker includes a bottom plate, a front beam removably coupled to the bottom plate via a lead screw, wherein the lead screw is configured to engage with a threaded support that is coupled to the bottom plate to facilitate racking the circuit breaker in a switchgear. The undercarriage also includes a keylock assembly configured to enable racking the circuit breaker in the switchgear. The keylock assembly includes a lock and an interlock configured to couple to the lock such that the interlock is movable between a locked position and an unlocked position, wherein engagement of a racking handle with the lead screw is enabled when the interlock is in the unlocked position. | 05-17-2012 |
| 20120193194 | INTERLOCKS FOR WITHDRAWABLE BREAKERS - A circuit breaker interlock apparatus can include a circuit breaker, a first moveable arm that is moveable when the circuit breaker is open, a second moveable arm pivotally coupled to the first moveable arm that is movable when the first moveable arm is moveable and a blocking arm, configured to interlock with the second movable arm. | 08-02-2012 |
| 20120199450 | REMOTELY-OPERATED SWITCHGEAR RACKING DEVICE AND A MOUNTING METHOD FOR THE SAME - A motor box is used to rack withdrawable devices into or out of the associated cell in a switchgear cabinet. A hand held control is used to operate the motor box from a remote location. The motor box is attached to a mounting assembly on the switchgear cabinet door. The assembly can be part of the door or separately attached to the door. The mounting assembly allows for easy alignment of the motor box to the door and prevents rotation of the motor box when the box is latched to the mounting assembly. A cart is used to transport the motor box, remote control and associated peripherals to and from the switchgear cabinet. | 08-09-2012 |
| 20160056618 | SWITCHGEAR SYSTEM AND ELECTRICAL SWITCHING APPARATUS ASSEMBLY THEREFOR - An electrical switching apparatus assembly is for a switchgear system. The switchgear system include an enclosure and a plurality of electrical bus members. The enclosure includes a number of compartments and a gas barrier having a plurality of thru holes. The electrical switching apparatus assembly includes an electrical switching apparatus, movable between a connection position and a disconnected position, and a pin assembly. The housing of the electrical switching apparatus includes a cover member having a plurality of apertures. The pin assembly includes a plurality of pins. When the electrical switching apparatus is disposed in the connected position, the apertures of the cover member align with the thru holes of the gas barrier to receive the pins and secure the electrical switching apparatus to the enclosure. | 02-25-2016 |
| 200500260 | With position indicating means (i.e., connect, disconnect, or test) | 6 |
| 20090000926 | Lockable Shutter for Withdrawable Racks of Low-Voltage Power Circuit Breakers - Withdrawable racks for power circuit breakers should be reliably switched. To this end, the movement of the plates of a shutter in the withdrawable rack can be blocked so that the shutter is not permitted to open unintentionally. In a special embodiment, the opening mechanism for the plates can have two V-shaped linkages that are connected to a telescopic rod. The telescopic rod can be locked by a locking element so that the shutter plates, which can be moved by sliders, can no longer be displaced. | 01-01-2009 |
| 20090014292 | CONTROL TERMINAL AUTOMATIC CONNECTION APPARATUS FOR DRAW-OUT TYPE AIR CIRCUIT BREAKER AND AIR CIRCUIT HAVING THE SAME - Disclosed is a control terminal automatic connection apparatus for an air circuit breaker and an air circuit breaker having the same, the apparatus comprising: a cam, a lever having one end portion that can be connected to the cam or separated from the cam and rotatable by the rotation driving force transferred from the cam when connected to the cam, a rod connected to the lever and thus movable in a vertical direction according to the rotation of the lever, a fixed control terminal module fixedly installed at the main body, and a movable control terminal module installed at the cradle and movable to a position for being connected to the fixed control terminal module of the main body and a position for being disconnected therefrom. | 01-15-2009 |
| 20090255791 | SYSTEM AND METHOD FOR INDICATING A POSITION OF AN ELECTRICAL DISTRIBUTION DEVICE - A system for indicating a position of an electrical distribution device configured to be racked into an electrically connected condition within an enclosure and racked out to an electrically disconnected condition via a racking mechanism is disclosed. The system includes a rotating indicator having at least a first position and a second position, the first position indicating the connected condition, and the second position indicating the disconnected condition, the indicator operably connected to the racking mechanism to rotate the indicator in response to movement of the racking mechanism between at least the connected condition and the disconnected condition. The system also includes a biasing device to bias rotation of the indicator toward the first position when the racking mechanism is in the connected condition and to bias rotation of the indicator toward the second position when the racking mechanism is in the disconnected condition. The system further includes a first mechanical stop to hold the indicator at the first position when the racking mechanism is in the connected condition, and a second mechanical stop to hold the indicator at the second position when the racking mechanism is in the disconnected condition. | 10-15-2009 |
| 20100163374 | POSITION INDICATING DEVICE - Disclosed is a position indicating device for a pull-out type circuit breaker used to cut off a current, the position indicating device including a position indicating plate installed at a lower surface of the circuit breaker to be rotatable up and down and having an arrow marked thereon, an indication supporter installed at a cradle and having stepped pressing surfaces for pressing up the position indicating plate, and a frame portion of a movable carriage, the frame portion having windows for externally showing a rotated state of the position indicating plate, whereby when the circuit breaker is docked with the cradle, the position to indicating plate is rotated by the indication supporter so as to indicate the position of the circuit breaker through the windows, thereby allowing a fast and precise recognition of the position of the circuit breaker. | 07-01-2010 |
| 20100230258 | RUN/TEST POSITION INDICATOR DEVICE OF VACUUM CIRCUIT BREAKER - A run/test position indicator device of a vacuum circuit breaker includes: a position indication cam installed between a girder, a fixed body, and a main body of a carriage, a moving body, and rotating at a certain angle according to a change in the space between the girder and the main body of the carriage; and an indication member, to which the position indication cam is rotatably coupled, having a mark symbol to allow the position indication cam to indicate a run and test position of a main body of circuit breaker. | 09-16-2010 |
| 20130186736 | SWITCHING DEVICE WITH A SWITCHING ELEMENT DRIVEN VIA A FLEXIBLE SHAFT - A switching device includes a switching element movable from a first position into a second position, a drive unit producing a rotary movement, and a flexible shaft transmitting the rotary movement to the switching element. The shaft has rotatable input and output sections on input- and output-drive sides, respectively. During movement of the shaft, a first rotary angle is producible at the output section, which first rotary angle is less than a second rotary angle at the input section at the same time, such that a first rotary angle shift is produced. The input section is connected to a switching position detection element having a control means with a first region which corresponds to the first position of the switching element and is coupled to the detection element. An identical indication of the detection element can be achieved in case of different rotary angle shifts in the same electrical switching state. | 07-25-2013 |
| 200500270 | Contact or contact mounting structure | 6 |
| 20110233034 | PLUG INTERLOCK DEVICE FOR VACUUM CIRCUIT BREAKER - Disclosed is a plug interlock device for a vacuum circuit breaker. Only after a plug is completely mounted to a connector, an insertion or withdrawal operation by a vacuum circuit breaker is performed. Accordingly, while a breaker body is moved to a ‘RUN’ position from a ‘TEST’ position, or when an operation is performed at a ‘RUN’ position, the plug may be prevented from being separated from the connector. This may prevent an accident. | 09-29-2011 |
| 20120228098 | SELF-ALIGNING SECONDARY DISCONNECT DEVICE FOR ELECTRICAL SWITCHGEAR - A secondary disconnect apparatus for a circuit breaker, for making a slidable electrical connection with a mating enclosure-side secondary disconnect apparatus, is disclosed, having a pair of stop plate surfaces coupled to the circuit breaker defining a first linear distance D | 09-13-2012 |
| 20120255839 | ARRANGEMENT HAVING A SWITCH, IN PARTICULAR HAVING A LOW-VOLTAGE CIRCUIT-BREAKER - An arrangement includes a switch, including main contacts for connection, the switch being insertable into a mounting rack as far as a final position in which the main contacts make contact with power connections arranged on the mounting rack. Auxiliary contacts, arranged on the mounting rack and on the switch, are designed to correspond to one another and make electrical contact with one another when the switch is inserted. In an embodiment, the auxiliary contacts on the rack are contact pins, and the auxiliary contacts on the switch are sockets, or vice versa, the contact pins being moved into the sockets beyond a movement distance from the final position during insertion of the switch and remaining in electrical contact until the final position of the switch, and the main contacts making contact with the power connections once after the final position has been reached. | 10-11-2012 |
| 20130048478 | SWITCH ARRANGEMENT FOR AN ELECTRICAL SWITCHGEAR - A switch arrangement for an electrical switchgear includes: a terminal arrangement including an insulating housing, the insulating housing including a first electrical contact and a second electrical contact which arc spaced apart along an axial direction; and a breaker moveable along the axial direction in the housing to a first position. When the breaker is in the first position and closed it electrically connects the first electrical contact and the second electrical contact. The insulating housing is split into a plurality of separate sections along the axial direction. At least one of the electrical contacts is in a first section and at least another of the electrical contacts is in a second section. | 02-28-2013 |
| 20130319831 | NON-LOAD BREAK ISOLATING SWITCH, VOLTAGE CONTROLLERS, AND ASSEMBLY METHODS - A non-load break isolating switch for a voltage controller or other electrical component controller may include a mangle pinion gear shaft and a slider having a gear rack that meshes with the mangle pinion gear shaft. Movement of an ON/OFF switch handle of the controller may cause the mangle pinion gear shaft to rotate. Rotation of the mangle pinion gear shaft may cause the slider to linearly translate along a fixed path, where a conductive connector on the slider may engage or disengage a finger assembly to make or break a connection with a voltage bus. Voltage controllers and methods of assembling a non-load break isolating switch are also provided, as are other aspects. | 12-05-2013 |
| 20160190721 | CONNECTING DEVICE FOR A SWITCHGEAR APPARATUS - A connecting-device for a switchgear apparatus, includes: tulip-cluster-portions for electrically engaging with a contact-stud-element; a mounting-end-part for the mechanical connection to a pole-terminal, and conductive-transmitting-portions for transmitting electrical current from the contact-stud-element to the pole-terminal, each of the conductive-transmitting-portions extending from the respective tulip-cluster-portion to a respective base-portion of the mounting-end-part. The tulip-cluster-portions with the respective conductive-transmitting-portions and with the respective base-portions are integral with one other so as to define respective single-piece-portions. | 06-30-2016 |
