Class / Patent application number | Description | Number of patent applications / Date published |
218154000 | Operating mechanism structure or arrangement | 40 |
20090020508 | CONTACT DRIVE ARRANGEMENT - The disclosure relates to a contact drive arrangement for the movement of at least one contact in high-voltage switchgear systems having a contact drive and having an auxiliary switch, which has at least two auxiliary contacts. The contact drive works together with the at least one contact and with a first auxiliary contact. Furthermore, a delay drive is connected functionally in parallel with the contact drive, and the delay drive works together with a second auxiliary contact. The first and second auxiliary contact are electrically connected in series. In addition, the delay drive has a damping element, and by means of the damping element the time for a switching operation is extended in comparison with the time for a switching operation with the contact drive. | 01-22-2009 |
20090050605 | CIRCUIT BREAKER HAVING AUTOMATIC RELEASE LINKAGE - Disclosed is a circuit breaker having an automatic release linkage capable of preventing damage and deformation of elements by automatic linkage release before electro-impulsive force generated from within the circuit breaker by a large short-circuit current causes the damage and deformation of open/close linkage. | 02-26-2009 |
20090166333 | CIRCUIT BREAKER HAVING A PLURALITY OF BREAKER CHAMBERS ARRANGED IN PARALLEL, WITH A COMMON TRANSMISSION AND REDUCED LENGTH - A high or very high voltage circuit breaker comprising, for each phase: | 07-02-2009 |
20090266795 | TRANSMISSION FOR AN ELECTRICAL CIRCUIT BREAKER - An electrical circuit breaker includes a first contact piece with a first consumable contact; a second contact piece with a second consumable contact; a drive for moving the first contact piece along a switching movement axis; and a transmission for transmitting the movement of the first contact piece to a movement of the second contact piece. The transmission has a first lever, a pivoting element which can pivot about a pivoting shaft, and a transmission mechanism for transmitting a pivoting movement of the pivoting element to a movement of the second contact piece. | 10-29-2009 |
20100006544 | MEDIUM-VOLTAGE CIRCUIT-BREAKER - A fast acting switching mechanism for a circuit breaker includes a drive rod articulated to a drive module and supporting at an end thereof a contact bridge having at opposite ends thereof respective moveable contacts for switchably engaging a pair of fixed contacts of the circuit breaker. A contact spring unit is operatively coupled to the drive module for applying closing pressure in the order of 200 Kg; and a latch latches the drive rod in an open or closed position after operation of the circuit breaker and prevents rebounds. The contact bridge includes a pair of side conductors supporting on upper edges thereof an armature having an exposed upper surface that supports the moveable contacts at opposite ends of the armature; and a reinforcing element inserted between the side conductors. | 01-14-2010 |
20100012624 | High-Voltage Disconnecting Circuit Breaker And Method Of Operating The Same - A high-voltage disconnecting circuit breaker includes a first and a second contact, a mechanism provided for moving the contacts to a first mutual distance, and a mechanism provided for quenching any arc appearing between the contacts during the movement to thereby provide the functionality of a high-voltage circuit breaker, wherein the mechanism provided for moving is further provided for moving the contacts to a second mutual distance larger than the first mutual distance after quenching of any arc to thereby provide the voltage withstand functionality of a high-voltage disconnector. | 01-21-2010 |
20100059482 | MOTOR OPERATOR FOR SWITCHGEAR FOR MAINS POWER DISTRIBUTION SYSTEMS - A motor operator for switchgear for use in mains power distribution systems comprising a closed cabinet ( | 03-11-2010 |
20100089874 | SWITCHGEAR - A switchgear is provided with interlocks that enhances safety and reliability. On a front face panel, a single line connection diagram, an indicator showing state of ON, OFF and disconnection, another indicator showing a state of an grounding switch, a selection mechanism for selecting manipulation of circuit break, disconnection and grounding, push button switches and for closing and opening a circuit breaker, a manipulation handle insertion hole for disconnecting and a manipulation handle insertion hole for grounding are provided. Depending on positions of a manipulation pin | 04-15-2010 |
20100089875 | HIGH AND MEDIUM VOLTAGE SWITCH APPARATUS WITH TWO INTERRUPTERS, HAVING COMMON MEANS FOR ACTUATING THE MOVABLE CONTACTS OF THE INTERRUPTERS - This invention relates to the control of a switch apparatus having two interrupters, such as a busbar disconnector and a grounding disconnector. | 04-15-2010 |
20100126967 | SWITCHGEAR AND SWITCHGEAR OPERATING MECHANISM - The time period is shortened till a cutoff spring force is released when a switchgear is cut off. This switchgear comprises: a closing shaft; a main lever fixed turnably on the closing shaft and associated with a movable contact; a closing spring; a sub shaft; a sub lever and a latch lever fixed on the sub shaft; a roller mounted on the leading end of the latch lever; a turnable latch and a kick lever; a lock lever made turnable with respect to the latch; a latch returning spring for biasing the latch; a lock returning spring for biasing the kick lever and the lock lever; and a stopper for restricting the turns of the lock lever and the latch. | 05-27-2010 |
20100270268 | Interrupter Arrangement Having a Movable Switching Tube - The invention relates to an interrupter arrangement ( | 10-28-2010 |
20100314358 | Surge Arrester Having Thermal Overload Protection - An overvoltage arrester includes at least two electrodes and a melt element that connects one of the electrodes to an outer terminal of the overvoltage arrester. An extinguishing device is designed to extinguish an electric arc. | 12-16-2010 |
20110036813 | GAS INSULATION CIRCUIT BREAKER WITH STRUCTURE FOR DECREASING FRICTION - Disclosed is a gas insulation circuit breaker with a structure for decreasing friction. The gas insulation circuit breaker comprises: a movable side supporting plate; a cylinder mounted so as to perform a reciprocating movement in a state that an outer surface thereof comes in contact with an inner surface of the movable side supporting plate; a contact spring for conduction disposed between the movable side supporting plate and the cylinder; and a movable arc contactor and a fixed arc contactor installed at the movable side supporting plate and the cylinder, respectively, and contacting and separated from each other by movement of the cylinder, wherein an end of the cylinder is tapered, and the outer surface of the cylinder comes in contact with the contact spring for conduction after a predetermined time lapses in a state that the cylinder has started to perform a closing operation during a circuit breaking operation. | 02-17-2011 |
20110079583 | CIRCUIT BREAKER HAVING DUAL ARC CHAMBER - A circuit breaker which includes first and second contact pairs and a contact arm arranged in series. A first arm contact and a first terminal contact from a first line terminal form a first contact pair. A second arm contact and a second terminal contact from a second line terminal contact form a second contact pair. The first contact pair, contact arm and second contact pair are connected in a series arrangement in which the air gaps formed when the first and second contact pairs are separated combine to form an effective air gap which is double in size and thus increases an interrupting capacity of the circuit breaker. An arc chamber is associated with the first and second contact pairs for extinguishing an arc formed in the air gaps. The first and second contact pairs may also be arranged in a parallel configuration for increasing an amperage rating of the circuit breaker. | 04-07-2011 |
20110132875 | SPLATTER RESISTANCE IN CIRCUIT BREAKERS - A circuit breaker includes at least trip mechanism component that has been provided with a splatter resistant surface. The splatter resistant surface significantly reduces the amount of metal splatter that adheres to the component, increasing the reliability of the circuit breaker. The splatter resistant surface may be created by coating the trip mechanism component with a solid lubricant or by applying a solid lubricant to the trip mechanism component in tape form. | 06-09-2011 |
20110155698 | REMOTE DRIVE FOR DISCONNECTOR/ISOLATOR USED IN SWITCHGEAR - A remotely controlled, motorized drive system for a disconnector used in switchgear. An operator pushes a button on a remote control, which signals a receiver in the disconnector to engage a motor that is coupled to a drive shaft. The drive shaft causes movable contacts of the disconnector to be moved into engagement or out of engagement with sets of fixed contacts in the switchgear that are connected to the line supply and to the circuit breaker that is bolted into the switchgear. One set of contacts is electrically coupled to the line supply, which can carry up to three phases of current. Another set of contacts is connected to corresponding terminals of the circuit breaker. A second motor controls movement of a grounding bar that grounds the circuit breaker to earth. Indicator lights on the switchgear panel indicate the position of the disconnector for visual confirmation of the same. | 06-30-2011 |
20110290762 | LOW-VOLTAGE CIRCUIT BREAKER WITH SEALED INTERCHANGEABLE POLES - A low-voltage circuit breaker that comprises: a containment structure; a control mechanism; a plurality of circuit breaking poles, each of which comprises a housing containing a scaled ampoule that in turn contains at least one fixed contact and at least one moving contact, which can be mutually coupled and uncoupled, said housing consisting of a first side and a second side that define an interior containing said ampoule, the outer side wall on said first side being complementary to and associable with the outer side wall of said second side, said poles being located side-by-side to form a set of poles complementary to at least a part of said containment structure; operative connection means between said control mechanism and said poles. | 12-01-2011 |
20120091103 | RELAY FOR ELECTRIC VEHICLE - Disclosed is a relay for an electric vehicle capable of guiding a precise assembly of a cover assembly and a supporting plate. The supporting plate comprises a position guiding portion protruding from an upper surface thereof so as to guide the cover assembly to be located on a predetermined position of the supporting plate when assembling the cover assembly and the supporting plate to each other. | 04-19-2012 |
20120193325 | FLEXIBLE SEAL FOR HIGH VOLTAGE SWITCH - An electrical switch includes a tubular housing that includes an interface positioned intermediate the conductor receiving end and the operating end. An operating rod extends through the housing. A fixed contact is electrically coupled to the operating end. A moveable contact is electrically coupled to the interface and the operating rod, wherein the moveable contact is moveable between a first position contacting the fixed contact and a second position separated from the fixed contact. A diaphragm is positioned in the tubular housing between the interface and the operating end and includes a first tubular portion and a second tubular portion. Movement of the operating rod from the first position to the second position causes the second tubular portion to move relative to the first tubular portion, thus deforming the shoulder portion. | 08-02-2012 |
20120273464 | SWITCHING MECHANISM FOR GAS INSULATED SWITCHGEAR - A switching mechanism for a gas insulated switchgear includes: a stationary contactor having a stationary arc contactor portion and a stationary main contactor portion; a movable arc contactor which is linearly movable; a movable main contactor which is linearly movable; a cylinder rod which provides driving power for linear motion to the movable main contactor and the movable arc contactor; a connecting rod which is connected to the cylinder rod; a stationary cylinder having a hollow guide tube portion for guiding the linear motion of the cylinder rod and the connecting rod; and a spring which charges elastic energy when the movable main contactor and the movable arc contactor move to the contacting position and discharge the elastic energy when the movable main contactor and the movable arc contactor move to the separating position. | 11-01-2012 |
20130001202 | CARRIER LINK INSULATOR FOR A CIRCUIT BREAKER - A carrier link insulator electrically insulates a carrier drive link from an arc chamber in a circuit breaker. | 01-03-2013 |
20130068728 | HIGH VOLTAGE RELAY NON MERCURY - The high voltage relay consists of a main body ( | 03-21-2013 |
20130098875 | GAS CIRCUIT BREAKER - A gas circuit breaker includes movable and fixed electrode parts arranged to face each other in an engaging/separating manner in a container filled with an insulating gas, an operating mechanism attached to a partition of the container and configured to output an operating force to the movable electrode part, an operating rod attached to the movable electrode part, a first link rotatably attached to the operating rod, a lever rotatably attached to the first link, a support bearing fixed to the partition of the container via an insulating spacer, a second link rotatably attached to the lever and also rotatably attached to the support bearing, a seal bearing connected through the partition of the container, a seal rod rotatably attached to the center of the lever and slidably supported to the seal bearing, and a third link rotatably attached to the seal rod and also attached to the operating mechanism. | 04-25-2013 |
20130134132 | HIGH POWER ELECTRICAL SWITCHING DEVICE - An electrical switching device and method are disclosed. The electrical switching device can include two movable contacts. During opening of the switching device, the two movable contacts move in a first direction until one of the movable contacts engages a blocking member. The other movable contact continues in the first direction, effecting opening of the switching device. In a particular implementation, the movable contact that engages the blocking member “bounces” in a second direction after contacting the blocking member. This causes the contacts of the switching device to be separated very quickly, reducing electrical arcing during opening of the switching device. | 05-30-2013 |
20130168358 | DRIVER FOR SWITCH IN GAS INSULATED SWITCHGEAR AND GAS INSULATED SWITCHGEAR HAVING THE SAME - A driver for a switch in a GIS (Gas Insulation Switchgear) includes a motor, a shaft connected with a moving contact of the switch, a gear connected with one terminal of the shaft and configured to transfer power of the motor to cause the shaft to reciprocate the moving contact through the shaft, a cam spline combined with the shaft and spaced apart from the gear, and a micro-switch connected with the cam spline and configured to control an operation of the motor. | 07-04-2013 |
20140076854 | Gas Circuit Breaker - A gas circuit breaker that includes a fixed contact, a moving contact to contact or separate from the fixed contact, an enclosed container containing the fixed contact and moving contact and filled with insulating gas, and an operating device to drive the moving contact. The operating device contains an elastic piece for a drive source, and a control mechanism to hold and release the elastic piece, and a link mechanism to transmit the drive force from the elastic piece to the moving contact. The elastic piece contains an opening spring and a closing spring. The opening spring is mounted between the link mechanism and the control mechanism with the operating axis oriented horizontally. | 03-20-2014 |
20140091062 | SWITCH - A roll for rotating a movable contact of a rotary switch, and a method of mounting a switch are provided. The roll includes a first slot going along the diameter of the roll and open from the top of the roll for receiving the movable contact for contacting with a stationary contact of the rotary switch, and a second slot arranged perpendicular to the first slot for receiving teeth of an upper roll to be mounted together with the roll. | 04-03-2014 |
20140097155 | SWITCH - A rotation mechanism for a rotary switch and a method of operating a rotary switch are provided. The rotation mechanism includes a mechanism shaft for switching the switch between open and closed positions of the switch, a crank rotationally connected to the mechanism shaft, a spring connected to the crank, where the spring has a dead point between the open and closed positions of the switch, and a force transmission roll rotationally connected to the crank. The mechanism shaft, crank and force transmission roll have a common axis of rotation. There is a predetermined rotational free-play between the rotation of the mechanism shaft and the crank, and a predetermined rotational free-play between the rotation of the crank and the force transmission roll. | 04-10-2014 |
20140116987 | MECHANICALLY OPERATED CELL SWITCH OF VACUUM CIRCUIT BREAKER - There is provided a mechanically operated cell (MOC) switch of a vacuum circuit breaker, which is uniformly operated regardless of an insertion stroke of a push rod that operates a MOC switch of a vacuum circuit breaker. The MOC switch outputting an ON/OFF state of a vacuum circuit breaker when the vacuum circuit breaker operates includes: a main bracket; a rotational shaft installed in the main bracket; a connection lever rotatably coupled to the rotational shaft and having one end connected to an auxiliary switch; a roller coupled to the other end of the connection lever; and a horizontal moving unit installed in a portion of the to main bracket and making a horizontal movement to rotate the roller and allowing the other end of the connection lever to make an ascending and descending movement. | 05-01-2014 |
20140175061 | ELECTRICAL SWITCHING DEVICE WITH A TRIPLE MOTION CONTACT ARRANGEMENT - A contact arrangement has a longitudinal axis (z) with a first contact group having a first contact and a second contact, and a second contact group having a third contact and a fourth contact. The first contact interacts electrically and mechanically with the third contact, and/or the second contact interacts electrically and mechanically with the fourth contact. At least one mechanical coupling is provided for transmitting an actuation force to the second contact group and thereby moving the second contact group. The third and the fourth contact can move in such a way that their speeds differ along at least a portion of a travel path of the third contact or of the fourth contact. | 06-26-2014 |
20140246404 | FAST CLOSING MECHANISM - A fast closing mechanism includes a rotation shaft and an ejector pin. The ejector pin is rotatably assembled to the side plate by the rotation shaft. The ejector pin strides over the side plate. The ejector pin includes a first portion and a second portion. The first portion is connected to a handle via a rod, and the second portion is located above a press plate. The fast closing mechanism may have an additional ejector pin based on current structures, the press plate may press against a moving contact at an initial stage of a closing process, so that the moving contact will not move during the initial stage of the closing process. The mechanical energy generated during the closing process is stored in an energy storage spring. At a later stage of the closing process, the ejector pin releases the press plate to accomplish closing quickly. | 09-04-2014 |
20140339198 | MOLDED-CASE CIRCUIT BREAKER - Provided is a molded case circuit breaker including an upper external box defining a rear space, a lower external box coupled with the upper external box and defining a front space divided from the rear space together with the upper external box, a fixed contact unit provided on one side of the front space and connected to electrically connected to one of a power supply and a load, a movable contact unit installed in the front space to be movable and being in contact with the fixed contact unit or being separated from the fixed contact unit, a switching device installed in the rear space and operating to allow the movable contact unit to be in contact with the fixed contact unit or to be separated from the fixed contact unit, an operation device installed in the front space and the rear space and transferring the movable contact unit according to operation of the switching device, and an electrode shaft installed on one side of the upper external box, corresponding to an outside of the front space. | 11-20-2014 |
20140346147 | Mobile Conducting Unit for a Breaker, Including a Spring for Accelerating the Separation of Arc Contacts - A disconnector ( | 11-27-2014 |
20150069021 | APPARATUS AND METHOD FOR REDUCING ELECTRICAL ARCING IN A CIRCUIT BREAKER WHILE TRANSITIONING TO A CLOSED CIRCUIT CONDITION - Apparatus and method for reducing formation of electrical arcing in a circuit breaker while transitioning to a closed circuit condition are disclosed. An electrical contact assembly ( | 03-12-2015 |
20150090696 | ELECTRIC CURRENT SWITCHING APPARATUS - An electric switch includes first and second stationary contacts, and a movable contact for making an electrical connection between the first and second stationary contacts. The movable contact is pivotally connected to the first stationary contact by a pivotal connection for allowing the movable contact to pivot with respect to the first stationary contact about a pivoting axis such that in an open position of the switch, the movable contact is disconnected from the second stationary contact, and in a closed position of the switch, the movable contact is in contact with the second stationary contact. The movable contact and the first stationary contact are arranged in a first angle with respect to each other in the open position of the switch, and in a second angle with respect to each other in the closed position of the switch, and the second angle is greater than the first angle. | 04-02-2015 |
20150108092 | DEVICE FOR ACTUATING THE CONTACTS OF A CIRCUIT BREAKER, COMPRISING A TORSION ROD - A circuit breaker has a stationary contact and a movable contact, and an actuator device for actuating it comprises a rigid drive shaft ( | 04-23-2015 |
20160071669 | Arrangement for an Electrical Circuit Element With a Seal Configuration - An electrical circuit element is disclosed. The electrical circuit element has an interrupter having contacts and an opening, a propulsion element extending through the opening in the interrupter and having an annular flange, and a seal configuration having an annular ring surrounding the opening. The propulsion element is movable within the opening to open or close the contacts, and in an end position of the propulsion element, the annular flange abuts the annular ring. | 03-10-2016 |
20160203926 | Switching Device with Improved Tripping Action in the Event of a Short Circuit | 07-14-2016 |
20160203927 | Gas Circuit Breaker | 07-14-2016 |
20180025868 | GAS CIRCUIT BREAKER | 01-25-2018 |