Patent application number | Description | Published |
20130035882 | METHOD AND APPARATUS FOR DIFFERENTIAL PROTECTION OF AN ELECTRIC CONNECTION - A method and apparatus are provided for differential protection of a three phase electric connection of an electric system. The apparatus includes means for determining a value of an operate quantity, which operate quantity is based on a difference between current quantities at a first point and a second point of the electric connection, and means for detecting a fault in the electric connection between the first point and the second point if the value of the operate quantity exceeds a value of a predetermined threshold quantity. The operate quantity is based on a difference of residual currents at the first point and the second point, or a quantity indicative thereof, and a coefficient indicative of an angle between a residual voltage of the electric connection and the difference of residual currents at the first point and the second point. | 02-07-2013 |
20130035886 | METHOD AND ARRANGEMENT FOR VOLTAGE MEASUREMENT - A method and an arrangement for voltage measurement with a transformer configuration comprising three single pole voltage transformers having tertiary windings open-delta connected with each other. The arrangement is configured to apply a correction to measured secondary voltages on the basis of one or more parameters of the voltage transformers and/or one or more quantities in a known relation to one or more parameters of the voltage transformers, one or more parameters of a circuit connected to the secondary windings and/or one or more quantities in a known relation to one or more parameters of the circuit connected to the secondary windings, and one or more parameters of a circuit connected to the tertiary windings and/or one or more quantities in a known relation to one or more parameters of the circuit connected to the tertiary windings. | 02-07-2013 |
20130037520 | SWITCH UNIT, METHOD FOR ASSEMBLING A SWITCH UNIT, AND CIRCUIT BREAKER FOR A MEDIUM VOLTAGE CIRCUIT - A switch unit for a DC circuit is disclosed, which includes a first switch contact, and a second switch contact, which is movable between a first position, wherein the first switch contact contacts the second switch contact, and a second position, wherein the second switch contact is separated from the first switch contact. A positioning element to position an arc chute on the switch unit, the arc chute comprises a plurality of substantially parallel metal plates, the positioning element arranged to guide an arc, which is created between the first switch contact and the second switch contact, into the arc chute in an arc displacement direction in order to be extinguished. At least one gas emitting element, wherein at an interruption operation of the circuit breaker at its nominal current, the arc between the first switch contact and the second switch contact vaporizes a portion of the gas emitting layer. | 02-14-2013 |
20130037521 | ARC CHUTE FOR A CIRCUIT BREAKER, CIRCUIT BREAKER AND METHOD FOR ASSEMBLING AN ARC CHUTE - An arc chute for a DC circuit breaker is disclosed which includes at least one stack of a plurality of substantially parallel metal plates, the at least one stack defining a first axis A in parallel to a stacking direction; an arc space adapted to allow an arc to extend along the first axis, wherein a second axis traversing in parallel to the metal plates the at least one stack and the arc space substantially orthogonal to the first axis. Further, an arc-chute housing having at least one side wall, the at least one side wall being substantially parallel to the second axis, wherein the distance between the at least one sidewall and the metal plates is, for example, less than 5 mm, such as less than 2 mm. | 02-14-2013 |
20130044406 | UNDERGROUND TRANSFORMER STATION FOR HIGH AND MEDIUM VOLTAGE - A transformer station for high and medium voltages is installed beneath the earth's surface, with at least one access point to the switchgear assembly and the ventilation shafts being arranged above ground. The station includes at least one power transformer for converting high voltage to medium voltage, at least one medium-voltage switchgear assembly and auxiliary and secondary as well as protection and control devices, and at least one access or transport shaft configured for transporting all large equipment and operating means into the station and can be used as an exhaust air shaft. The access or transport shaft has ventilation channels and a movable closure element. A base surface for placing the operating means and power transformers is provided beneath the access shaft. The power transformers can be inserted into boxes, which may be adjacent to one another, once the power transformers have been placed on the base surface. | 02-21-2013 |
20130054174 | SYSTEM AND METHOD FOR TRANSMITTING MEASUREMENT SIGNALS IN SPATIALLY EXTENSIVE SUPPLY NETWORKS - Exemplary systems and methods for monitoring a current state of a spatially extensive supply network having at least one control station that monitors and controls the supply network and a plurality of sensors that transmit measurement values relating to operating behavior to the at least one control station. Current measurement values are measured at positions on the supply network corresponding to each sensor. Each sensor analyzes measured signal variations and signal trends of the measured current values via an evaluating unit. The measurement values of each respective sensor are transmitted to the at least one control station in data packets at a defined time. At each respective sensor, when the analysis detects an abnormal measurement signal variation, a frequency of transmission of the respective sensor and each adjacent sensor is increased, the respective sensor transmitting the measurement values to the at least one control station or to adjacent sensors to which the respective sensor is connected to through a common supply line and which measure an identical or physically similar quantity. | 02-28-2013 |
20130080959 | SIMPLIFIED NAVIGATION AMONG PROCESS CONTROL VIEWS IN A PROCESS CONTROL SYSTEM - A method is provided for simplifying navigation for a user among process control views on a user terminal display of a process control system. The method includes presenting a current main process control view in a first main view window together with a number of additional views in a second additional views window, receiving, from the user, a selection of a view in the second window to be main process control view, setting the selected view as current main process control view, choosing a group of views to be presented as additional views in the second window based on an additional view selection criterion, and repeating presenting current main process control view according to the received selection with the chosen group of views as additional views in the second window. Also provided are a user terminal and a non-transitory computer-readable recording medium having a computer program for simplifying such navigation. | 03-28-2013 |
20130096975 | METHOD AND SYSTEM FOR ADAPTING A PRODUCTION FLOW SCHEDULE FOR A PRODUCTION PROCESS - A method and system are disclosed for adapting a production flow schedule for one or more production processes, each having one or more process steps that use power for the execution thereof. An exemplary method includes identifying at least one availability time window in which there is a predetermined minimum power availability within a predetermined optimization time period based on a piece of availability information which indicates a forecast power availability during the optimization time period; providing an indication of one or more flexible process steps, which can be executed in a plurality of alternative time windows within the optimization time period; and for each of the flexible process steps, temporally rearranging the corresponding flexible process step into one of the corresponding alternative time windows if the rescheduling is within the availability time window in order to obtain an adapted production flow schedule. | 04-18-2013 |
20130099279 | POWER SEMICONDUCTOR DEVICE - An exemplary power semiconductor device with a wafer having an emitter electrode on an emitter side and a collector electrode on a collector side, an (n-) doped drift layer, an n-doped first region, a p-doped base layer, an n-doped source region, and a gate electrode, all of which being formed between the emitter and collector electrodes. The emitter electrode contacts the base layer and the source region within a contact area. An active semiconductor cell is formed within the wafer, and includes layers that lie in orthogonal projection with respect to the emitter side of the contact area of the emitter electrode. The device also includes a p-doped well, which is arranged in the same plane as the base layer, but outside the active cell. The well is electrically connected to the emitter electrode at least one of directly or via the base layer. | 04-25-2013 |
20130113589 | UNDERFLOOR TRANSFORMER - An underfloor transformer includes a layered transformer core and at least one electrical winding through which the transformer core extends along a limb axis. In each of two axial end regions of the transformer core, a securing device, which interacts with the transformer core mechanically, is provided. The securing devices are configured for such tensile force stressing. The underfloor transformer can be carried suspended therefrom. | 05-09-2013 |
20130113597 | TRANSFORMER WITH SHIELDED CLAMPS - The present disclosure provides for the shielding of clamps of a transformer, and including an electric shielding arrangement for a transformer and a transformer with the arrangement. An electric shielding arrangement for a transformer is provided, with a clamp which is attached at a yoke and stabilizes the yoke of the transformer. The arrangement includes an electric shielding device arranged at the clamp between the yoke and a winding of the transformer and having a trough-like form. The electric shielding device may have the form of a rounded cover and is configured to shield the clamp from an electric field of the winding. | 05-09-2013 |
20130113598 | TRANSFORMER WITH SHIELDING RINGS IN WINDINGS - A coil and electric shielding arrangement for a dry-type transformer includes an electric shielding device arranged at a distance from a winding, at an axial end of the winding perpendicular to a longitudinal axis of the transformer, and parallel to a top surface of a coil that is wound around the axis such that the electric shielding device covers a cross-sectional area of the winding perpendicular to the longitudinal axis. An insulation material attached to the winding and to the electric shielding device establishes a first distance between the winding and the electric shielding device along the longitudinal axis such that the winding is shielded against another electric field. The winding and the electric shielding device are casted in a block which insulates the electric shielding device from the electric field of the winding by establishing a second distance between the winding and the electric shielding device. | 05-09-2013 |
20130114314 | CONVERTER SYSTEM AND POWER ELECTRONIC SYSTEM COMPRISING SUCH CONVERTER SYSTEMS - Exemplary embodiments are directed to a converter system having a phase voltage source, n partial converter systems, wherein n≧1 and, when n=1, the partial converter system is connected to the phase voltage source at a connection point and, when n>1, the partial converter systems are connected to the phase voltage source at the connection point. Furthermore, a power switch is connected in series between the phase voltage source and the connection point. An interruption element is connected in series between the phase voltage source, the power switch, and the connection point to rapidly switch off a fault current via a partial converter system. Furthermore, a power electronic system including m converter systems is specified, wherein m>1. | 05-09-2013 |
20130117421 | DETERMINING VLAN-IDs FOR A SWITCHED-BASED COMMUNICATION NETWORK OF A PROCESS CONTROL SYSTEM - A Process Control (PC) or Substation Automation (SA) system is disclosed with appropriate message filtering based on Virtual Local Area Network identifiers VLAN-IDs as communication sub-network identifiers. The VLAN-IDs are determined in order to optimize data flow in the sense that receiver IEDs only receive the intended messages, while at the same time the number of sub-network identifiers can be reduced to a maximum extent. Restricting the real time traffic in such a way can ensure proper operation of the systems, such as large SA systems using GOOSE for interlocking and having sensors connected with the Sampled Value (SV) protocol according to IEC 61850-9-2. | 05-09-2013 |
20130126479 | METHOD FOR PRODUCING A CIRCUIT-BREAKER POLE PART - Exemplary embodiments of the present disclosure are directed to a method for producing a circuit-breaker pole part by molding an external insulating sleeve with insulation material, mounting a vacuum interrupter insert inside the insulating sleeve, electrically connecting the vacuum interrupter insert with an upper electrical terminal and a lower electrical terminal arranged in the wall section of the insulating sleeve The method also includes molding the external insulating sleeve, wherein only the upper electrical terminal is embedded in the insulation material, coating the vacuum interrupter insert with an extra layer made of insulation material for thermo extension compensation, mounting the coated vacuum interrupter insert by screwing on a threaded bolt onto the upper electrical terminal. | 05-23-2013 |
20130126480 | CIRCUIT-BREAKER POLE PART AND METHOD FOR PRODUCING SUCH A POLE PART - Exemplary embodiments are directed to a method for producing a circuit-breaker pole part that includes an external insulating sleeve made of a solid synthetic material for supporting and housing a vacuum interrupter insert for electrical switching a medium-voltage circuit. An adhesive material layer at least on the lateral area of the interrupter insert is applied and the coated interrupter is embedded by molding with the solid synthetic material in order to form a single layer of the surrounding external insulating sleeve. | 05-23-2013 |
20130128635 | METHOD FOR OPERATING A CONVERTER AND A SWITCHING CELL AND A CONVERTER - Exemplary embodiments are directed to a method for operating a converter, wherein the converter includes a plurality of bridge branches having one or more switching cells connected in series. Each bridge branch connects one of a plurality of inputs to one of a plurality of outputs of the converter. The method includes monitoring each of the switching cells in order to determine a fault. If a fault is identified in one of the switching cells, triggering one of the triggering elements for short-circuiting switching cell connections if the fault identified in the switching cell is not followed by identification of a fault in a further one of the switching cells within a predetermined period of time. | 05-23-2013 |
20130135066 | DRIVE FOR A SWITCH DISCONNECTOR WITH C O SWITCHING CAPACITY - Exemplary embodiments relate to a drive for a switch disconnector having C or O switching capacity and a switching pin acting as switching contact. A spindle drive is driven by an electric motor and has a spindle nut. An actuating element, which is loaded by a compression spring and is capable of pivoting about a fixed pivot point, is acted upon by the spindle nut. The actuating element for its part interacts with an actuating apparatus which actuates the switching pin. | 05-30-2013 |
20130135908 | CONVERTER SYSTEM AND METHOD FOR THE OPERATION OF SUCH A CONVERTER - A converter system is provided for the switching of at least three voltage levels and for the switching of two voltage levels. A method is also provided for the operation of a converter system for the switching of at least three voltage levels and for the operation of a converter system for the switching of two voltage levels. | 05-30-2013 |
20130141830 | SURGE ARRESTER - An exemplary surge arrester includes a housing with protection against electric shock. A voltage-limiting active part is arranged in the housing and has a stack of varistor elements formed as a varistor column. An electrical connection is arranged outside the housing and is electrically conductively connected to the varistor column for connecting a high-voltage installation. The electrically conductive connection between the varistor column and the electrical connection is a flexible high-voltage cable conductor. The high-voltage cable has a first section arranged in the interior of the housing and formed without a shield, and a second section arranged outside the housing and having cable insulation and an electrically conductive shield that surrounds the cable conductor. The high voltage cable is electrically conductively connectable first to the housing and second to an encapsulation. The housing accommodates an apparatus for damping oscillations which are introduced into the varistor column from the outside. | 06-06-2013 |
20130148268 | GAS-INSULATED SWITCHGEAR ARRANGEMENT - A gas-insulated switchgear bay includes at least three circuit breakers, which define a longitudinal direction, for interrupting conductor phases at different electrical potentials. The circuit breakers each have a first and second power connection, which define a first and second axis extending orthogonally to the longitudinal direction. A first busbar section is attachable to the first power connection, and the first busbar conductors thereof, each define a third axis, which extends orthogonally to the longitudinal direction and the first axis. A second busbar section is attachable to the second power connection, and the second busbar conductors thereof, each define a fourth axis, which extends orthogonally to the longitudinal direction and the first axis. A first distance between the first and second axes is such that the fourth axis is arranged with respect to position and orientation on a common straight line with the third axis in the second mounting state. | 06-13-2013 |
20130153066 | COLOR CHANGER MODULE AND COLOR CHANGER - Exemplary embodiments relate to a color changer module including an inlet channel, an outlet channel, a duct channel arranged between them to form a fluidic connection, and a first valve for interrupting the duct channel. A docking valve, lies fluidically in series with the first valve and with which the duct channel can also be interrupted. | 06-20-2013 |
20130153377 | MEDIUM VOLTAGE CIRCUIT BREAKER ARRANGEMENT OPERATED BY A TRANSMISSION MECHANISM - A circuit breaker arrangement includes at least one pole part for switching an electrical medium to high voltage circuit by a respective pair of fixed and movable electrical contacts. A pushrod of a respective movable electrical contact is operated by a common actuator unit, which is mechanically connected to each pushrod via a transmission mechanism for transferring a switching force from the actuator unit to each pushrod. The transmission mechanism includes a crankshaft having at least one crank which is pivotally attached to one end of a connection rod. An opposite end of the connection rod is pivotally attached to an end of the pushrod of a corresponding pole part. | 06-20-2013 |
20130153385 | HIGH-CURRENT SWITCHING ARRANGEMENT - An exemplary high-current switching arrangement in a generator duct arranged between a generator and a transformer is disclosed. This arrangement includes a pole frame which can be positioned on a base surface, a breaker pole of a generator circuit-breaker which is secured to the pole frame, and a drive which is secured to the pole frame. The breaker pole includes an active component arranged along an axis designed for the conduction and interruption of high currents and which incorporates a power switching point, with two axially spaced current terminals. The drive is arranged on a first of two end faces of the pole frame, and includes a linkage mechanism that transmits power from the drive to the power switching point. | 06-20-2013 |
20130153539 | FIBER REINFORCED INSULATION MATERIAL FOR EMBEDDED VACUUM INTERRUPTERS - A vacuum interrupter embedded in an insulating material is disclosed, the insulating material including a first main layer having a first sub-layer, a second sub-layer, and a third sub-layer. The second sub-layer is arranged between the first sub-layer and the third sub-layer. The first sub-layer, the second sub-layer, and the third sub-layer can include fibers, wherein the first sub-layer can include a group of first fibers which are arranged in parallel with respect to each other. | 06-20-2013 |
20130158678 | METHOD OF CONTROL OF TECHNICAL EQUIPMENT - The disclosure relates to a method and system for control and remote monitoring the condition of a technical equipment or plant provided with tags or labels as an electronic identifier where a user identifies the apparatus/machine, while on-site, a unique ID, stored data on the tag and sensor data are read, a mobile device application sends a control request from the identified apparatus to a central automation system for approval. The request and data can be analyzed by the central automation system to determine: is control request allowed/authorized so that no misoperation is possible; and which functionality is allowed via mobile device. If control is allowed, then the commands, related to configuration, action, and the like, requested are sent to the central automation/control system for controlling/passing the commands, and executing command for the technical equipment. | 06-20-2013 |
20130163165 | GAS-INSULATED SWITCHGEAR - A gas-insulated switchgear assembly is provided that includes a housing having an interior containing insulating gas. A disconnector is disposed in the housing and includes a movable contact, as well as fixed contacts that are spaced apart and arranged linearly in a direction perpendicular to a wall of the housing. The movable contact has a colored or topographical marking and is linearly movable among a plurality of positions. The wall of the housing is provided with an inspection window that permits a person to see the colored or topographical marking in relation to the fixed contacts, thereby permitting the person to determine the position of the movable contact. | 06-27-2013 |
20130176092 | COOLED TRANSFORMER HAVING AT LEAST ONE STRIP WINDING - A strip winding for a transformer includes a plurality of winding modules each having a strip conductor wound around a winding axis. A winding segment is formed by at least two radially adjacent winding modules. At least one cooling channel extending in the axial direction is provided between at least two radially adjacent winding modules. At least two axially adjacent winding segments are provided, and the winding modules are connected electrically in series by connecting conductors. At least one connecting conductor is led at least in sections through the cooling channel along the axial extension of the cooling channel. | 07-11-2013 |
20130179519 | SYSTEM AND METHOD FOR COLLABORATION, MESSAGING AND INFORMATION EXCHANGE BETWEEN ENGINEERING TOOLS - A system and method are provided for the collaboration between engineering tools and engineers. A data processing unit is combined with or includes a source engineering tool having a source engineering data storage. The data processing unit exchanges data with at least one target data processing unit associated with at least one target engineering tool having its own engineering data storage. The collaboration system and method provides engineers of the source or target engineering tools to generate collaboration requests or collaboration responses which are automatically assigned to the corresponding engineering data object, and the owner and receivers of regarding engineering data objects are automatically notified about corresponding collaboration requests or responses across engineering tools and data processing units. | 07-11-2013 |
20130181796 | TRANSFORMER WINDING - A transformer winding, having at least two multi-layered winding modules, which are connected electrically in series, extend about a common winding axis, and are nested one inside the other hollow-cylindrically, at least one cooling channel, which is arranged along the common winding axis hollow-cylindrically between the winding modules, and a flat electrical shield is provided within the at least one cooling channel at least sectionally along the radial circumference thereof, wherein the electrical shield extends over approximately the entire axial length and through which electrical shield the electrical capacitance distribution in the transformer winding connected electrically in series is influenced. | 07-18-2013 |
20130187734 | MAGNETIC ACTUATOR FOR A CIRCUIT BREAKER ARRANGEMENT - An exemplary magnetic actuator for a circuit breaker arrangement includes a coil, a core with a groove for accommodating a section of the coil, and a movable plate configured to be attracted by the core. When a magnetic field is generated by the coil, the movable plate actuates the circuit breaker arrangement based on the attraction to the core. The magnetic actuator also includes a position locker for locking the coil in the groove. The position locker having a locking part protruding away from the core and over a section of the coil not accommodated in the groove. | 07-25-2013 |
20130187739 | Fluid Deflection Transformer Tank - A transformer includes an enclosed tank having an interior and an enclosed radiator spaced from the tank and in fluid communication with the interior. The radiator includes two panels joined to define a substantially enclosed space. The panels have opposing faces and bottom ends. The bottom ends of the panels are joined together by a first weld and portions of the opposing faces of the panels are joined together by a plurality of second welds. The first weld and the plurality of second welds are constructed and arranged such that when an over-pressure condition occurs in the tank and thus in the radiator, the second welds will break generally uniformly permitting the panels to balloon generally uniformly, directing a rupture of the radiator to occur at the first weld, without any rupture of the tank occurring. | 07-25-2013 |
20130194707 | SWITCHGEAR WITH SWITCHING DEVICE DRIVEN BY PROPELLANT CHARGE - A switchgear includes a switching device, which is driven by a propellant chemical charge or fast acting switch. The switchgear includes a current or fault current detection unit, and an optical sensor unit for light arc or fault light arc detection, without the need of having an auxiliary voltage applied. In order to reduce the closing time of an earthing switch, the electrical circuit of an inductive current detection unit is electrically connected in series with a light sensing switching path, and a current signal directly ignites the propellant chemical charge or fast acting switch by using a limited electronic device. | 08-01-2013 |