Patent application number | Description | Published |
20130285773 | DISCONNECTOR SWITCH FOR VOLTAGE TRANSFORMER - A disconnector unit for a medium voltage application, with a conductive pen inside a housing. The conductive pen is moveable between an operational position in which an electrical contact is provided between a first terminal and a second terminal positioned inside the housing, and an off position in which no electrical contact is present between the first terminal and the second terminal. The conductive pen includes a first actuating part inside the housing, optionally, in the form of a magnet. The disconnector unit further includes a second actuating part positioned outside the housing, wherein the first actuating part and second actuating part form a non-mechanical link. | 10-31-2013 |
20130307648 | ELECTROMAGNETIC ACTUATOR WITH UNDER VOLTAGE RELEASE - An electromagnetic actuator has a yoke for guiding a magnetic flux, and a holding plate attached to an actuating member, the holding plate and yoke forming a first magnetic circuit. Furthermore a magnetic flux generation device is provided for generating a magnetic flux in the first magnetic circuit. The magnetic flux generation device has an under voltage release coil electrically connected to an auxiliary voltage source representing the value of a voltage to be monitored. | 11-21-2013 |
20140319100 | ARC ENERGY ABSORBER - A device for cooling exhaust gases caused by an electrical arc in high or medium voltage switch gear, which device comprises a housing with an inlet and an outlet for passage of the gases, wherein a hydrous mineral is arranged in the housing for cooling the gases with the water contained in the hydrous mineral. | 10-30-2014 |
20140327502 | ELECTROMAGNETIC ACTUATOR - An electromagnetic actuator for operating at least one movable contact of a switch into a switched-on position or a switched-off position, the actuator having: a static pole body; a movable pole body movable relative to the static pole body; a first magnetic circuit with a first coil for making the movable pole body and the fixed pole body move towards each other to a switched-on position and a second coil for making the movable pole body and the fixed pole body move away from each other to a switched-off position; and a second magnetic circuit with a permanent magnet and a retaining plate to keep the static pole body and the movable pole body in the switched-on position; first spring unit for urging the static pole body and the movable body away from each other; wherein the first and second magnetic circuit are arranged concentrically. | 11-06-2014 |
Patent application number | Description | Published |
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 |
20130056341 | TERMINAL FOR AN ELECTRICAL SWITCHGEAR - A terminal for an electrical switchgear, the terminal comprises a housing arrangement ( | 03-07-2013 |
20140284192 | DRIVING ROD FOR MEDIUM VOLTAGE SWITCHING ELEMENT GEAR - A device for medium or high voltage switching element gear, the device having: a switching element for connecting two conductors: and a driving rod for operating the switch, wherein the driving rod comprises at least a surface layer of an electrically high resistance material. The electrically high resistance material ensures that a small current will flow through the material due to the present electrical field. This small current will cause a heating of the driving rod, such that condensation is reduced or prevented. | 09-25-2014 |
20140342586 | BUSBAR CONNECTION - A busbar connection includes first and second busbars each with a free end, and a shield Device. The free ends of the busbars are directed towards each other and are in electrical contact with each other. The shield device envelopes the free ends of the busbars and is configured to steer the electrical field. The shield device includes a body of electrical conducting material. The body has two oppositely arranged contact surfaces in direct electrical contact with the free ends of the busbars. The body has a flange surrounding the contact surfaces and providing an upright edge around the contact surfaces. | 11-20-2014 |
Patent application number | Description | Published |
20100188819 | COOLING ARRANGEMENT FOR CONDUCTOR IN ELECTRICAL INSTALLATION - Cooling arrangement for an electrically conductive element in an electrical installation. A casting body ( | 07-29-2010 |
20100200379 | QUICKLY EXCHANGEABLE SWITCHING DEVICE IN FIXED TYPE MEDIUM VOLTAGE SWITCHGEAR SYSTEM - Switching device assembly for providing a switching function in a medium voltage switchgear system. A switching device ( | 08-12-2010 |
20110108398 | DISCONNECTOR FOR SWITCHGEAR - Disconnector for switchgear, having a first contact position, in which a contact is between main and first terminals, and a second contact position, in which a contact is between the main and second terminal. The disconnector includes a connector body moveable in a first direction between the first and second positions and having an end extendable in a direction substantially perpendicular to the first direction for providing a contact force between the end and the first, second or main terminals, a first operating mechanism arranged to move the body between the first and second positions, and a second operating mechanism arranged to extend the end when the disconnector is in either the first or second contact positions, in which the end includes a conical inside surface and the second operating mechanism includes a first shaft having a first conically shaped end positioned inside the conical inside surface. | 05-12-2011 |
20110174779 | SWITCHING INSTALLATION WITH ARC PROTECTION AND ARC PROTECTION METHOD - A switching installation including a gas-filled enclosure having an input conductor, an actuator and an arc initiator. The actuator is arranged to actuate the arc initiator upon the occurrence of a first arc with a first length in the enclosure. The arc initiator creates, upon being actuated, a path for a second arc of a second length, the second length being shorter than the first length. The actuator can be arranged to react on an increase in pressure in the enclosure upon the occurrence of the first arc. The gas can be air or SF6. The arc initiator can create, upon being actuated, the path for the second arc through a section of a solid cable insulation isolating the input conductor from the enclosure. | 07-21-2011 |
20110174780 | SWITCHING INSTALLATION WITH ARC PROTECTION AND ARC PROTECTION METHOD - A switching installation including a gas-filled enclosure, an input conductor, an actuator and a short-circuit device. The actuator is arranged to actuate the short-circuit device upon the occurrence of a first arc in the enclosure. The short-circuit device creates, upon being actuated, a short-circuit through the solid insulation between the input conductor and the enclosure or a separate ground point. The actuator can be arranged to react on an increase in pressure in the enclosure upon the occurrence of the first arc. The gas can be air or SF6. The short-circuit device can create, upon being actuated, the short-circuit through a section of a solid cable insulation isolating the input conductor from the enclosure. | 07-21-2011 |
20140360847 | DISCONNECTOR FOR SWITCHGEAR - Disconnector for switchgear, having a first contact position, in which a contact is between main and first terminals, and a second contact position, in which a contact is between the main and second terminal. The disconnector includes a connector body moveable in a first direction between the first and second positions and having an end extendable in a direction substantially perpendicular to the first direction for providing a contact force between the end and the first, second or main terminals, a first operating mechanism arranged to move the body between the first and second positions, and a second operating mechanism arranged to extend the end when the disconnector is in either the first or second contact positions, in which the end includes a conical inside surface and the second operating mechanism includes a first shaft having a first conically shaped end positioned inside the conical inside surface. | 12-11-2014 |
Patent application number | Description | Published |
20090107849 | ELECTROCHEMICAL PROCESS TO PREPARE A HALOGENATED CARBONYL GROUP-CONTAINING COMPOUND - The present invention provides a process to prepare a halogenated carbonyl group-containing compound by electrochemically reacting the corresponding carbonyl group-containing compound with a hydrogen halide H—X, an organic halide R′—X and/or a halide salt M | 04-30-2009 |
20100126864 | PROCESS TO PREPARE AMINO ACID-N, N-DIACETIC ACID COMPOUNDS - The invention relates to a process for the production of an amino acid having at least one secondary or tertiary amino group and three or more carboxyl groups or its salt with less than an equivalent of alkaline metal based on the number of carboxyl groups, said process comprising reducing alkali metal ions from an aqueous solution of an alkali metal salt of an amino acid having at least one secondary or tertiary amino group and three or more carboxyl groups and acidifying the amino carboxylate starting material by first performing a chemical acidification step using an organic or inorganic acid to get a compound in which at least one of the groups is protonated, and in a subsequent step further acidifying the amino carboxylate starting material and reducing alkali metal ions from an aqueous solution of the partially acidified alkali metal salt of the amino acid having at least one secondary or tertiary amino group and three or more carboxyl groups by electrodialysis, wherein the electrodialysis is performed using a hydrogen ion permselective membrane on the anode side and a cation-permeable membrane on the cathode side. | 05-27-2010 |
20120132536 | AN ELECTROCHEMICAL PROCESS TO PREPARE CHEMICALS USING A CYANIDE SALT - The present invention relates to a process comprising the reaction of a cyanide with a hydrogen cyanide-reactive compound, characterized in that the cyanide is a cyanide salt and the process is an electrochemical process involving the transporting of a reaction mixture to which cyanide salt has been added through an electrochemical cell, in which process the cyanide salt reacts with the hydrogen cyanide-reactive compound while at least partly under the influence of an electric current the cyanide salt is acidified and the salt cation content is reduced. | 05-31-2012 |
20150075999 | STABILIZATION OF AN AQUEOUS SOLUTION OF AN ORGANIC IRON SALT - Process and station for stabilizing an aqueous solution of an iron salt of an organic acid with a ferric component and a ferrous component of less solubility than the ferric component, such as the aqueous solution based on the Fe | 03-19-2015 |
Patent application number | Description | Published |
20110156593 | BOOSTING DRIVER CIRCUIT FOR LIGHT-EMITTING DIODES - Various embodiments relate to an light-emitting diode (LED) driver and related method that drives various LEDs in an LED string beyond their isolated nominal luminance. Individual LEDs in an LED string may be thermally dependent so that specific LEDs may operate at higher temperatures without degradation. This may include driving specific LEDs beyond isolated nominal luminance when associated LEDs dim below their isolated nominal luminance. Such operation allows the LED to receive higher amounts of current and therefore exhibit higher luminous intensity. A control circuit may monitor the forward voltage and temperature in a feedback loop to ensure that the LEDs in the string are operating below a defined maximum junction temperature. The control circuit may signal a processing unit to adjust adjacent circuits to compensate when the controlled LEDs cannot produce a requested luminance without operating beyond a maximum junction temperature. | 06-30-2011 |
20120105070 | SPECTROSCOPIC BATTERY-CELL IMPEDANCE MEASUREMENT ARRANGEMENT - A battery cell measurement system comprising a signal generator coupled to a pulse density modulation circuit generating a control signal which drives a switch connected between a first terminal of a battery cell and a first terminal of a bleeding impedance, a second terminal of the bleeding impedance being coupled to a second battery cell terminal. The first terminal is coupled to a first terminal of a second switch. The second terminal is coupled to a first terminal of a third switch. A second terminal of the second switch and second terminal of the third switch are coupled and are further coupled to a low-pass filter. A signal generated by the low-pass filter is inputted into an analog to digital converter, which provides a signal representative of either a signal across the bleeding impedance, or a signal between the battery cell terminals. | 05-03-2012 |
20130314049 | BATTERY CELL TEMPERATURE DETECTION - Temperature characteristics of battery cells are detected. In accordance with one or more embodiments, an intercept frequency is detected for each battery cell, at which frequency an imaginary part of a plot of impedance values of the battery cell exhibits a zero crossing. The impedance values correspond to current injected into the cell. A temperature of the cell is determined based upon the detected intercept frequency for the cell and stored data that models operation of the cell. Various approaches are implemented with different types of circuits coupled to detect the impedance values of the respective cells. | 11-28-2013 |
20140042957 | ENERGY STORAGE CELL FOR A MULTI-CELL ENERGY STORAGE DEVICE - An energy storage cell for a multi-cell energy storage device is disclosed. The energy storage cell comprises a cell information storage device adapted to store cell information regarding the energy storage cell. | 02-13-2014 |
20150019771 | DAISY CHAIN COMMUNICATION BUS AND PROTOCOL - A battery pack has first and second battery terminals, plural battery cells each with a battery element, a cell supervisor electrically connected to the battery element, and a communication section to communicate with the cell supervisor. The battery elements are connected serially between the first and second battery terminals. Bus interfaces are arranged in alternating fashion with the battery cells to define a daisy chain bus, each such bus interface being configured for signal communication, the interfaces respectively connecting the communication sections of two adjacent battery cells. A battery manager communicates with the battery cells via the daisy chain bus. The battery manager sends a command message to the battery cells using a through mode protocol, and each battery cell sends at least one of a confirmation message and a service request to the battery manager using a shift mode protocol. | 01-15-2015 |
20150102943 | DAISY-CHAIN COMMUNICATION BUS AND PROTOCOL - An apparatus is provided that includes first and second connection nodes and a communication circuit. The communication circuit is configured to communicate cell-status data of a cell over a bidirectional data path connected to the connection nodes. The communication circuit includes directional drive circuitry configured to communicate the cell-status data over the bi-directional data path by communicating the cell-status data via the first connection node to first-side circuitry in the one direction of the bi-directional data path and, in response to an indication that the bi-directional data path is faulty, by communicating via the second connection node to second-side circuitry along the other direction of the bi-directional data path. The communication circuit also includes a communication-protocol circuit configured to control the directional drive circuitry. The apparatus may be connected in-series with other like apparatuses in the bi-directional data path. | 04-16-2015 |
20150104673 | DAISY-CHAIN COMMUNICATION BUS AND PROTOCOL - In some embodiments, an apparatus is provided that includes a bi-directional communication bus, a set of battery sections connected to the bi-directional communication bus, and a battery manager circuit bi-directional communication bus. Each of the battery sections of the set has a clock circuit. The battery manager circuit is configured to communicate with the set of battery sections via the bi-directional communication bus using a synchronous master-slave communication protocol, in which symbols transmitted by the battery manager circuit include respective timing trigger segments and respective data segments. Each battery section of the set of battery sections is configured and arranged to adjust a frequency or a phase of the respective clock circuit of the battery section, relative to timing of the timing trigger segments. | 04-16-2015 |