Abstract:
The invention relates to a configuration system for configuration of appliances in networks, for example substation control technology, having at least one appliance to be configured and having elements which are configured in a specific manner, and configuration means for reconfiguration of the appliance on the basis of received new configuration information; and a configuration server, which is connected via a network to the at least one appliance to be configured and which has composition means for creation of new configuration information for the appliance to be configured and means for determination of the present configuration of the at least one appliance to be configured. The invention likewise relates to a corresponding configuration method.
Abstract:
A method for installation of a programmable protective function in a protective device (1) for an electrical power distribution network, with the protective device (1) having means for processing (14) measured values from measurement appliances (3, 4) for the power distribution network, and having means for initiating (16) switching commands by primary appliances (2) for the power distribution network, and the protective function determining the switching commands on the basis of the measured values, when it is carried out, has the following steps: transmission of a description of the protective function from a remote function server (6) via a communication link (5) to the protective device (1), loading of the description in the protective device (1), and implementation of the loaded description (14, 15, 16) of the protective function. A protective device (1) according to the invention has means for receiving (18) a description of a protective function via a communication link (5) from a remote function server (6) and has means for loading the description, wherein the loaded description of the protective function (14, 15, 16) can be carried out in the protective device (1).
Abstract:
A configuration and method for the wire-free supply of electric power to a large number of sensors and/or actuators mounted on a machine includes a micro fuel cell with associated fuel tank integrated into the sensors/actuators and converting the stored fuel, preferably methanol, into electric power to supply the sensor. Also included is a sensor or actuator with such an integrated micro fuel cell and fuel tank. Further included is a system for a machine, in particular an automatic production machine, having a large number of sensors/actuators equipped with a transmitting device and/or receiving device communicating through radio signals with a central transmitting and/or receiving device connected to a process computer belonging to the machine, and a micro fuel cell with associated fuel tank integrated into the sensors/actuators and converting the stored fuel into electric power to supply the sensor.
Abstract:
For estimating a value of a vector of variables p in a mathematical model representing a physical process, where a state vector x of the model is estimated by a State Augmented Extended Kalman Filter (SAEKF), and where that the vector of variables p represents one or more properties of the process and is representable by a function of the state vector x, the following steps are executed: a) measuring values for measured variables u, b) incorporating the vector of variables p as an augmented state in the SAEKF, and c) computing an estimate of the complete state including the augmented state according to a SAEKF algorithm. That is, process properties themselves are estimated, and not polynomial coefficients for computing the variables from the state, as is usually done in the SAEKF.
Abstract:
Solid insulator for gas-insulated encapsulated high voltage installations with an insulator body, which is supporting at least one central conductor that is provided for carrying high voltage and that is arranged in an outer enclosure. The insulator body comprises a fiber-reinforced polymer.
Abstract:
The impact signaling system (9) is used in a high-voltage protective device and has a housing (13), a spring (16) which is arranged in the housing (13) and has a moveable end, an actuator (17) which can be passed out of the housing (13) and interacts with the moveable end of the spring (16), a high-resistance resistor wire (12) which is connected in parallel with a fusible wire of the protective device, and a holder which absorbs the prestress of the spring (16). The holder contains a section of the high-resistance resistor wire (12) which is in the form of a winding (18) and is passed at least once around the moveable end of the spring (16) in order to form the prestress, and which is at least partially in thermally conductive contact with the material of the activator (20). Above a limit temperature, the activator (20) lifts, for example by destruction of the winding (18) or by melting through, the holder and activates the impact signaling system (9) by reducing the load on the spring (16).
Abstract:
An oil well system for extracting oil extracted from a reservoir via a well, INCLUDES a separator device adapted to separate oil and water from a mixture extracted from a reservoir. The separator device has a non-vertical first flow path for the mixture and being arranged along a non-vertical portion of the well, a second flow path, separate from the first flow path, for receiving water or a water enriched phase that has been separated from the mixture by the separator device, and a plurality of drain openings along a section of the first flow path. The first and second flow paths are arranged such that water or the water enriched phase in the first flow path can flow by gravity to the second flow path via the drain openings. An opening area of the drain openings, per unit area of the first flow path, decreases in a flow direction of the mixture along the first flow path.
Abstract:
A permanent magnet machine with a hybrid cage and methods for operating same are disclosed. According to one aspect, the subject matter described herein includes a rotor and hybrid cage for an electrical machine, the rotor comprising a rotor body having a central axis and including a plurality of permanent magnets positioned to create a plurality of rotor magnetic poles distributed around a peripheral surface of the rotor. The rotor also includes a hybrid cage that includes conductive loops around each of the rotor magnetic poles, where the conductive loops are controllable to form a closed circuit or an open circuit around each of the rotor magnetic poles. A closed circuit may be created when a magnetic field having a field strength or change of field strength that exceeds a threshold magnitude is present, such as during a fault condition, and an open circuit may be created when a magnetic field having a field strength or change of field strength that exceeds a threshold magnitude is not present, such as during normal operation.
Abstract:
A fiber-optic current sensor uses a highly-birefringent spun fiber as sensing fiber. The light is fed through a retarder, which is a detuned quarter-wave or half-wave retarder. It is shown that such detuning can be used to compensate for temperature dependencies of the sensing head.
Abstract:
For monitoring diagnostic rules of a power system, an exemplary method is disclosed and includes collecting operational diagnostic data from a first primary device; identifying a change of a diagnostic indicator based on the operational diagnostic data; adapting a diagnostic rule to the identified change, wherein the diagnostic rule is applicable to the diagnostic data for determining a diagnostic warning which indicates a diagnostic state of a primary device; and providing a diagnostic warning of a second primary device by applying the adapted diagnostic rule to operational diagnostic data collected for the second primary device.