| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 218143000 | Resistance inserting | 18 |
| 20090206059 | Intelligent circuit breaker apparatus and methods - A system and associated components for providing an intelligent circuit breaker being adapted to communicate with, monitor and control various devices within a commercial or residential premises. In one embodiment, the system is adapted for low cost, ease of installation and operation, and ease of manufacture. The intelligent circuit breaker may also be adapted to send data relating to sensed parameter or conditions to, and receive commands from, a user interface. Methods for operating such breakers and converting existing circuit breakers to intelligent circuit breakers consistent with the aforementioned system and components are also described. | 08-20-2009 |
| 20090321392 | Circuit Breaker - A circuit breaker for high voltage applications, including: at least one breaking unit, a supporting insulator having one end on ground potential and the other end on high voltage potential, and the end on high voltage potential is mechanically connected to the breaking unit, and a fiber optic sensor for sensing the current through the breaking unit. The supporting insulator is removably connected to the breaking unit. The sensor has an optic fiber coil arranged in the high voltage end of the supporting insulator, and the circuit breaker includes a mechanism for conducting current from the breaking unit to the sensor so that the current passes through the sensor coil. | 12-31-2009 |
| 20100102036 | GAS INSULATED CIRCUIT BREAKER SYSTEM AND GAS INSULATED CIRCUIT BREAKER MONITORING METHOD - A gas insulated circuit breaker system has: a container that encapsulates insulating gas; a main contact in the container that opens/closes the main circuit; a resistor contact in the container, connected in parallel to the main contact, to be opened after elapse of a predetermined time after the main contact is opened and to be closed at a predetermined time before the main contact is closed; a resistor in the container, serially connected to the resistor contact and connected in parallel to the main contact together with the resistor contact; a temperature sensor that measures temperature of surrounding of the resistor; and a temperature estimation section that estimates a temperature of the resistor based on a timing of opening/closing operation of the main contact, a current flowing through the main circuit and the measured temperature. | 04-29-2010 |
| 20100219163 | HIGH-VOLTAGE CIRCUIT BREAKER HAVING A SWITCH FOR CONNECTION OF A CLOSING RESISTOR - A high-voltage circuit breaker has an interrupter unit, a closing resistor and a switch which is connected in series with the closing resistor. The interrupter unit has a driven first interrupter contact which can move along an axis and interacts with a second interrupter contact, which is arranged on the axis in order to open and close the high-voltage circuit breaker. The switch has a switching contact which can rotate about a rotation shaft (D) and whose rotary movement is coupled by of a link control to the movement along the axis (A | 09-02-2010 |
| 20120199558 | Commutating Circuit Breaker - A commutating circuit breaker that progressively inserts increasing resistance into a circuit via physical motion of a shuttle that is linked into the circuit by at least one set of sliding electrical contacts on the shuttle that connect the power through the moving shuttle to a sequence of different resistive paths with increasing resistance; the motion of the shuttle can be either linear or rotary. At no point are the sliding stator electrodes separated from the matching stationary stator electrodes so as to generate a powerful arc, which minimizes damage to the sliding stator electrodes. Instead, the current is commutated from one resistive path to the next with small enough changes in resistance at each step that arcing is suppressed. The variable resistance can either be within the moving shuttle, or the shuttle can comprise a commutating shuttle that moves the current over a series of stationary resistors. | 08-09-2012 |
| 20120234796 | HVDC BREAKER AND CONTROL APPARATUS FOR CONTROLLING AN HVDC BREAKER - The invention relates to an HVDC breaker ( | 09-20-2012 |
| 20130119022 | MEDIUM AND HIGH-VOLTAGE ELECTRIC SWITCH WITH RETURN ON CLOSURE AND AN INSERTION DEVICE FOR INSERTING A RESISTANCE - An electric switch for application to high- and very high-voltage circuit breakers and switches comprising a flexible toroidal helical spring ( | 05-16-2013 |
| 20130256274 | COMMUTATING CIRCUIT BREAKER - A commutating circuit breaker that works by progressively inserting increasing resistance into a circuit. This is done via physical motion of a shuttle that is linked into the circuit by at least one set of sliding electrical contacts on the shuttle (“shuttle electrodes”) that connect the power through the moving shuttle to a sequence of different resistive paths with increasing resistance; the motion of the shuttle can be either linear or rotary. A feature of the commutating circuit breaker is that at no point are the shuttle electrodes separated from the matching stationary stator electrodes so as to generate a powerful arc, which minimizes damage to the electrodes. Instead, the current is commutated from one resistive path to the next with small enough changes in resistance at each step that arcing can be suppressed. The variable resistance can either be within the moving shuttle, or the shuttle can comprise a commutating shuttle that moves the current over a series of stationary resistors. In either case, a “soft” opening of the circuit can be accomplished, with low switching transients, provided that the maximum step change of resistance is limited until the current is nearly extinguished. Commutating circuit breakers work equally well for DC or AC power. | 10-03-2013 |
| 20140061162 | Contact Alignment Structure For High-Voltage Dead Tank Circuit Breakers - Contact alignment structure aligns a contact of a circuit breaker. The circuit breaker includes the contact fixed to a conductor, and a resistor tube having a longitudinal axis. The contact alignment structure includes a tube clamp assembly for selectively coupling to a periphery of the resistor tube. A rocker assembly is coupled with the tube clamp assembly and with the conductor so that the conductor is supported by the rocker assembly only at one end of the conductor. When the rocker assembly is coupled to the conductor, the tube clamp assembly can be rotated about the periphery of the resistor tube to change a position of the contact in a first degree of freedom, and a portion of the rocker arm assembly can be moved to change a position of the contact in a second degree of freedom that is parallel to the longitudinal axis of the resistor tube. | 03-06-2014 |
| 20140076853 | Telescoping Current Path Structure For Dual Tank Dead Tank Circuit Breaker With Parallel Resistor Assembly - Current path structure provides a current path between an interrupter assembly and a resistor assembly of a dead tank circuit breaker and includes an electrically conductive fixed support having first and second ends. The first end is fixed to one of the interrupter assembly or the resistor assembly. A substantially hollow, electrically conductive conductor has first and second ends, with a connector at the first end thereof. The connector is removably connected to the other of the interrupter assembly or the resistor assembly. Coupling structure removably couples the conductor with the fixed support such that when coupled, the current path structure is in an operative position electrically connecting the interrupter assembly with the resistor assembly, and when decoupled, the fixed support can be moved into telescoping relation within the conductor defining a collapsed position of the current path structure. | 03-20-2014 |
| 20140158665 | SEALED SOLENOID MAGNETICALLY OPERATED HIGH VOLTAGE ELECTRIC POWER SWITCH - A sealed solenoid, magnetically operated electric power switch is suitable for use as capacitor, line and load switch operating at transmission and distribution voltages that includes no seals through the sealed container housing the contactor portion of the switch. The sealed solenoid switch includes a magnetically operated drive system with an actuator that magnetically couples across the container wall to avoid the use of a moving or sliding seal as part of the drive system. The sealed solenoid switch may also include a ballast resistor and resistor contact located inside the sealed container to avoid another seal as part of the ballast system. A magnetic latch holds the switch in a closed position, and a spring holds the switch in the closed position, to avoid the need for an energizing current to maintain the switch in either position. | 06-12-2014 |
| 20140175060 | CONTACTOR-CIRCUIT BREAKER DEVICE - The invention relates to a contactor-circuit breaker device ( | 06-26-2014 |
| 20160042895 | SUPPORTING STRUCTURE OF CLOSING RESISTOR UNIT FOR CIRCUIT BREAKER - Disclosed is a supporting structure of a closing resistor unit for a circuit breaker which connects the closing resistor unit to the fixed portion through the first supporting plate and the second supporting plate to allow the closing resistor unit to move back and forth with respect to the fixed portion through the first supporting plate and to move up and down with respect to the fixed portion through the second supporting plate, whereby the closing resistor unit or its joints may be prevented from being damaged from impact. | 02-11-2016 |
| 20160118208 | SUPPORTING STRUCTURE OF CLOSING RESISTOR FOR HIGH VOLTAGE CIRCUIT BREAKER - The present invention relates to a supporting structure of a closing resistor for a high voltage circuit breaker, capable of stably supporting the closing resistor not to be twisted even by an impact applied upon a closing operation. A supporting structure of a closing resistor for a high voltage circuit breaker according to one embodiment includes a fixed part main circuit conductor, a supporting conductor installed on an upper surface of the fixed part main circuit conductor, a connecting conductor connected to one end of the supporting conductor, a closing resistor unit coupled to one side of the fixed part main circuit conductor in a spaced manner, and a coupling conductor provided to couple the supporting conductor to the closing resistor unit. The supporting conductor and the connecting conductor are provided with a coupling rib and a coupling groove, respectively, to be coupled to each other in an inserting manner. | 04-28-2016 |
| 20160254109 | Commutating Switch with Blocking Semiconductor | 09-01-2016 |
| 20180026037 | Display Device and Electronic Device | 01-25-2018 |
| 218144000 | With capacitor | 2 |
| 20090014418 | Electrical Switching Device with Potential Control - An electrical switching device with potential control has at least one interrupter unit. The interrupter unit has an electrical switching point and an electrical capacitance with respect to the electrical grounding. Conventionally, electrical switching devices, such as circuit breakers for high-voltage installations, for example, with so-called control capacitors, which are connected in parallel with the switching point, are used for making the voltage uniform across a plurality of interrupter units of an electrical switching device. As a result, a virtually uniform voltage load on all the interrupter units of the electrical switching device is ensured. The idea here is to use resistive and/or inductive components for making the voltage uniform across the electrical switching device instead of or in addition to the control capacitors used. | 01-15-2009 |
| 20130037519 | SWITCH DEVICE AND CONNECTOR - A switch device includes first and second contacting portions including first and fixed contacting portions and first and second movable contacting portions, respectively, the first fixed contacting portion and the second fixed contacting portion being configured to be electrically connected to one of a power source and an electronic device while the first movable contacting portion and the second movable contacting portion are configured to be electrically connected to the other of the power source and the electronic device; and first and second electric arc voltage suppression units configured to be electrically connected to the first and second fixed contacting portions and the first and second movable contacting portions for suppressing generation of electric arcs there between, respectively. | 02-14-2013 |
