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| Number | Title | Issue Date |
| 8170723 | Determination and use of power system sensitivities The present disclosure relates to power system sensitivities as computed from power flow parameters and control parameters of a Power Flow Control Device (PFC). To this end, control parameter variations are applied to or generated by a PFC, and comprise variations i... | 05/01/2012 |
| 8168901 | Cutouts with automatic reclosing A cutout is used in an electrical distribution network to electrically connect a first electric cable with a second electrical cable, The cutout includes an electrically non-conductive insulator having first and second end. A first terminal assembly is secured to th... | 05/01/2012 |
| 8154369 | Method and device for controlling of a magnetic flux A device for controlling a magnetic flux in an electromagnetic system, wherein the system includes magnetically connected magnetic cores, between which a volume is arranged. The volume includes a controllable magnetic flux region and the magnetic flux region include... | 04/10/2012 |
| 8153952 | Flame scanning device and method for its operation A flame scanning device is provided for monitoring a flame. The device includes a radiation collection and transmission element for collecting flame radiation and transmitting it to detection elements, a flame sensor element for the detection of radiation and conver... | 04/10/2012 |
| 8121740 | Feeder automation for an electric power distribution system A soft PLC technology based computer-implemented method includes updating a system configuration incidence matrix for an electric power distribution system based on both a depth-first search of a connectivity matrix for the electric power distribution system and inf... | 02/21/2012 |
| 8079143 | Method and apparatus for engine piston installation by use of industrial robots A method and apparatus for engine piston installation in which robots are used for the entire engine piston installation process. A first robot equipped with a stuffing gripper and force control picks up a piston with a connection rod, detects the piston ring presen... | 12/20/2011 |
| 8013702 | Versatile distribution transformer A versatile distribution transformer having an electromagnetic transformer and a power electronic module is provided. A pocket having connectors electrically connected to at least one winding structure of the electromagnetic transformer is mounted above the electrom... | 09/06/2011 |
| 7979222 | Short-term load forecasting based capacity check for automated power restoration of electric distribution networks A method of forecasting loads on a distribution network is disclosed. The method employs load profiles in combination with short-term load estimations to forecast expected loads on a distribution network. The predicted loads may then be used by power restoration con... | 07/12/2011 |
| 7979220 | System and method for monitoring power damping compliance of a power generation unit A system and method for monitoring the power damping compliance of a power generation unit comprises a measurement unit that is configured to be coupled to a power generation unit to identify the voltage, current, and frequency values associated with power output th... | 07/12/2011 |
| 7948352 | Wirelessly powered secondary electrical distribution equipment A wireless secondary assembly is disclosed for use in an electrical distribution network. The secondary assembly may include a wireless source electrically connected to a first electric cable and adapted to emit an electromagnetic power signal. A wireless receiver i... | 05/24/2011 |
| 7906742 | Vacuum interrupter chamber and contact arrangement for a vacuum circuit breaker The invention relates to a contact arrangement for a vacuum interrupter chamber (1), which comprises a pair of inner contact pieces (11, 12), configured as RMF contact pieces, and a pair of outer contact pieces (21, 22) which are connected in pa... | 03/15/2011 |
| 7894918 | System for analyzing batch processes The present invention is directed to a batch system for managing and analyzing batch runs of a batch process in a process cell. The batch system includes a computer readable medium, a plurality of batch management routines and a plurality of batch analysis routines ... | 02/22/2011 |
| 7795884 | Method and apparatus for calculating the number of turns per segment of a transformer coil winding A method and an apparatus for calculating the number of turns per segment of a transformer coil winding which has a plurality of segments connected in series. The number of turns per segments is computed by assigning to segments predefined parameters related to cust... | 09/14/2010 |
| 7786393 | Coating of MAXmaterial for electrical contact elements An element for making an electric contact to a contact member for enabling an electric current to flow between the element and the contact member. The element includes a body having at least a contact surface thereof coated with a contact layer applied against the c... | 08/31/2010 |
| 7725295 | Cable fault detection A cable fault detection component (168) receives input data indicative of a fault in an electrical power system. The component (168) analyzes the input data to determine if the fault is indicative of a temporary or self-clearing cable fault and generat... | 05/25/2010 |
| 7721241 | Automated method and tool for documenting a transformer design A method and tool for creating documentation for a transformer design uses design files created during the transformer design process to generate drawings and other information necessary to populate documentation. The design files contain information relating to the... | 05/18/2010 |
| 7694259 | Data models for describing an electrical device A method and product are described for creating a model of a physical layout and/or a circuit layout of an electrical device. The layouts are defined in a user interface. A text file having metadata elements in a hierarchical format is produced that can be used by o... | 04/06/2010 |
| 7684900 | Adaptive provision of protection function settings of electrical machines A protection setting determiner (118) adaptively updates settings of protection functions in memory of a protection device (106) that protects a machine (102) that provides power to a power system (104), wherein the settings are updated b... | 03/23/2010 |
| 7643907 | Method and apparatus for developing a metadata-infused software program for controlling a robot The present invention is directed to a method and apparatus for developing a metadata-infused software program for controlling a device, such as a robot. A first library of software segments with metadata and a second library of script documents are provided. A part... | 01/05/2010 |
| 7620517 | Real-time power-line sag monitoring using time-synchronized power system measurements A sag calculator (112) computes sag for a span of a line section based at least in part upon an average temperature of the conductors in the line section. A temperature calculator (110) determines the temperature by ascertaining an ohmic resistance of ... | 11/17/2009 |
| 7558703 | Electrical substation monitoring and diagnostics A substation intelligence system (104) includes a substation computer (105) which is operatively connected to a plurality of field devices (102) through an input/output subsystem (204). Data indicative of the devices is stored in a substa... | 07/07/2009 |
| 7558032 | Protection system for medium-voltage potential transformers A protection system for a transformer system that includes three single phase transformers with auxiliary secondary windings, respectively. The auxiliary secondary windings are connected to form an open delta configuration. The protection system is connected into th... | 07/07/2009 |
| 7499816 | Estimation of real-time power system quantities using time-synchronized measurements Phasor measurement units (108) provide phasor data from various locations (102) in an electrical power system. The phasor data is referenced to a common timing signal. Non-phasor measurement data is also obtained at various locations in the power syste... | 03/03/2009 |
| 7494271 | Power-line sag calculation by way of power-system state estimation A sag calculator (122) computes sag for a span of a section of a power line based at least in part upon a temperature of conductor lines in the line section. A temperature calculator (120) determines the temperature by computing a resistance ascertaine... | 02/24/2009 |
| 7450792 | Fiber-optic sensor coil and current or magnetic-field sensor A fiber-optic sensor head is disclosed for an optical current or magnetic-field sensor which can have an optical fiber which includes a magnetooptically active sensor fiber which is optically connected to at least one polarization-defining element. The sensor fiber ... | 11/11/2008 |
| 7450538 | Method for operating a system with a multiplicity of nodes and a base station according to TDMA and a system for this purpose A method is proposed for operating a system according to TDMA (Time Division Multiple Access) with a multiplicity of wireless sensors and/or actuators as nodes (S.1 . . . S.n) and a base station (BS), said system being installed in a machine or installation, ... | 11/11/2008 |
| 7443698 | Converter circuit for switching of a multiplicity of switching voltage levels A converter circuit is disclosed for switching of a multiplicity of switching voltage levels, which have n first switching groups for each phase (R, S, T), with the n-th first switching group being formed by a first drivable bidirectional power semiconductor switch ... | 10/28/2008 |
| 7426456 | Optimal operation of a power plant In a method and computer program product for optimal operation of a power plant and a power plant optimising system an optimisation mode (1) minimises a cost function (J[u],J[P]) that comprises a deviation of lifetime of plant components (LTp(τ)) from a desi... | 09/16/2008 |
| 7376664 | Method for evaluating a transformer design A preferred method for evaluating a transformer design using data representing test results from a plurality of transformers and stored in a data base includes comparing the data representing test results to predetermined criteria for the test results to determine w... | 05/20/2008 |
| 7373056 | High-voltage component with optical fiber and method for producing it A high-voltage component, having a first end and a second end, whereby the first end is on a high-voltage potential with respect to the second end. An insulating part, is arranged between the first end and the second end, and an optical fiber is integrated in the hi... | 05/13/2008 |
| 7353081 | Method and a system for programming an industrial robot A method for programming an industrial robot. The robot is taught a path having waypoints located on or in the vicinity of an object. An image of the object is obtained. Information is obtained about the position of a pointer pointing at points. The position of the ... | 04/01/2008 |
| 7340323 | Industrial robot with controlled flexibility and simulated force for automated assembly An industrial robot that uses a simulated force vector to allow a work piece held by the robot end effector to be mated with a work piece whose location and orientation is not precisely known to the robot. When the end effector makes contact with the location and or... | 03/04/2008 |
| 7339680 | Temperature-stabilized sensor coil and current sensor The fiber-optic sensor head (2) for a current or magnetic field sensor comprises an optical fiber which contains a magnetooptically active sensor fiber (3) and at least one polarization-maintaining supply fiber (5), which are optically connected... | 03/04/2008 |
| 7336338 | Liquid-crystal indicator of voltage presence The subject of the invention is a liquid crystal indicator of voltage presence in electric conductors and equipment. The device is used to indicate the presence of an AC voltage, especially in medium and high voltage systems. The indicator according to the invention... | 02/26/2008 |
| 7319922 | Protective device and method for installation of a protective function in a protective device A protective device for an electrical power distribution network has: means for processing measured values from measurement appliances for the power distribution network, means for initiating switching commands by means of primary appliances for the power distributi... | 01/15/2008 |
| 7318844 | Laser-irradiated metallized electroceramic The manufacturing method for an electroceramic component (1), for example a varistor (1), comprises a laser irradiation of a part (5; 6) of the surface of an electroceramic body (2) before a metallization (3; 4) is applied to the p... | 01/15/2008 |
| 7311264 | Method and device for the process regulation or control of thermal load changes of an obstruction-curved and/or thick-walled component through which a medium flows in a thermal system The novel method and device provide for process control—closed-loop control or open-loop control—for a thermal system with an obstruction-curved and/or thick-walled component through which a medium flows. The wall temperatures of the component are detected, the ... | 12/25/2007 |
| 7292460 | Converter circuit for switching a large number of switching voltage levels A converter circuit is specified for switching a large number of switching voltage levels, which has n first switching groups for each phase, with the n-th first switching group being formed by a first power semiconductor switch and a second power semiconductor swit... | 11/06/2007 |
| 7284437 | Device and method for the status monitoring of a pressure measuring unit The invention relates to a device and a method for the status monitoring of a pressure measuring unit in an absolute or differential or relative pressure transducer, a pressure-sensitive element installed in the pressure measuring unit being impinged with at least o... | 10/23/2007 |
| 7277779 | Real-time emergency control in power systems The present invention is concerned with a method for real-time emergency control of power transmission networks, based on a modification of the model predictive control (MPC) approach. Following the detection of a contingency at time tc only one nominal t... | 10/02/2007 |
