Abstract:
A method, an engineering tool, and a computer program element for analyzing a communication of secondary devices in a Substation Automation System for a substation are disclosed. The secondary devices are connected to a communication network for controlling an industrial process, which industrial process can include a plurality of operational aspects of primary devices. Sender secondary devices are configured to send data packets, which can include a multitude of data objects, to predetermined receiver secondary devices via the communication network, wherein the data packets transmitted via the communication network are captured, a functional interrelation or operational aspect of the secondary devices and the primary devices is retrieved from an SCD-file representing the formal configuration of the substation is retrieved, and the secondary devices are grouped according to the retrieved operational aspect and a time sorted graphical representation of the data objects, the secondary devices and the operational aspects is generated.
Abstract:
A magnetic actuating device (1) for a current switching device (2) comprises: —a ferromagnetic stator (3) and a ferromagnetic armature (4) which is movable between a first end position (5), which is close to the ferromagnetic stator (3), and a second end position (6) which is spaced apart from the ferromagnetic stator (3), —a compression spring (7)configured for urging the ferromagnetic armature (4) to the second end position (6), —an electrical coil (8) energizable for electromagnetically attracting the ferromagnetic armature (4) to the first end position (5), and —a mechanical locking assembly (10) configured for releasably blocking the ferromagnetic armature (4) in the first end position (5).
Abstract:
Power conversion apparatus for controllably converting alternating current (AC) to direct current (DC). An example apparatus includes multiple AC sources, galvanically isolated from one another, and multiple bridge rectifier circuits, including one or more controllable bridge rectifier circuits, where each bridge rectifier circuit has respective AC-side terminals and DC-side terminals and each bridge rectifier circuit is connected to a corresponding one of the AC sources via its AC-side terminals. The DC-side terminals are connected so that the outputs of the bridge rectifier circuits are combined in series. A control circuit is configured to individually control each controllable bridge rectifier circuit to selectively operate in a regulator mode, whereby a non-zero voltage less than or equal to the maximum rectifier voltage is provided, and a bypass mode, whereby the controllable bridge rectifier circuit provides a negligible voltage to its DC-side terminals and draws negligible current from its corresponding AC source.
Abstract:
A tank for a circuit breaker has a body defining an interior volume and having opposing ends. An flange is at each end of the body with the flanges defining a central longitudinal axis of the body. The body has an internal surface defining a top portion of the tank disposed substantially above the axis and defining a bottom portion of the tank disposed substantially below the axis. The top portion is spaced from the axis as defined by at least a first radius from the axis. The bottom portion is spaced from the axis as defined by at least a second radius from axis. The second radius is greater than the first radius so as to reduce an electric field intensity on the bottom portion of the body and thus reduce effects of foreign particles within the interior volume, regardless of phase rotation.
Abstract:
A transformer and a method of manufacturing a transformer are disclosed. The transformer can include a transformer core with at least three core limbs which are arranged in parallel with respect to one another and perpendicular to corner points of an area spanned by a polygon, and wherein axial end regions of each of the at least three core limbs transition into a respective yoke segment arranged transversely with respect to the axial end regions. Main windings can be arranged around each of the at least three core limbs in a hollow-cylindrical winding region. A magnetic cross section of a respective core limb can be greater than a magnetic cross section of the respective yoke segment. Additional windings can be electrically connected to a respective main winding and can be arranged around each of the respective yoke segments.
Abstract:
It is described a monitor and control system comprising: an input/output module structured to receive data/information associated with a power generation system; a human-machine interface device connected to the input/output module and configured to display a plurality of different view types representing different visualizations of the data/information and an operator interface application software module configured to run on said human-machine interface device and structured to: visualize a first view associated with a first view type by a first visualization process, and visualize a second view associated with a second view type different from the first view type by a second visualization process independent from the first process.
Abstract:
Wind power generator (WPG) comprising a stator, rotor with a shaft connectable to wind turbine and a stationary superconducting coil for magnetizing the wind power generator rotor, the WPG stator comprising a multi-phase winding for producing electricity. The WPG is a synchronous generator, and the superconducting coil comprises end portions arranged to be magnetized with opposing polarities by a superconducting coil, the rotor comprises poles extending in the surface of the rotor in the direction of the shaft of the generator, the poles arranged to be magnetized using the superconducting coil, each rotor pole extends inwardly at one end of the pole such that the inwardly extended end is arranged in the vicinity of an end portion of the superconducting coil for magnetizing the rotor pole and the rotor poles comprises pole shoes formed to provide sinusoidally varying air gap flux in the air gap between stator and rotor.
Abstract:
A system and method are disclosed for distributing and exchanging elements for planning and/or operating automation operating equipment, which include at least one interface device, at least one processing device and at least one data store, wherein the interface device effects an integrated connection to at least one engineering tool and/or an integrated link to at least one engineering tool such that functionalities of the at least one interface device and of the at least one processing device can be retrieved from the respective engineering tool and carried out. The respective processing device, the respective interface device, and the respective engineering tool, elements created and/or marked by a first engineering tool can be transferred to the respective processing device and processed and/or can be made available on the at least one data store to be retrieved and/or to be transferred to and/or implemented in at least one second engineering tool.
Abstract:
A fiber optic sensor and related method are described, with the sensor including a cross-coupling element in the optical path between a polarizing element and a sensing element, but separated from the sensing element itself; with the cross-coupling element generating a defined cross-coupling between the two orthogonal polarization states of the fundamental mode of a polarization maintaining fiber guiding light from the light source to the sensing element thus introducing a wavelength-dependent or temperature-dependent sensor signal shift to balance wavelength-dependent or temperature-dependent signal shifts due to other elements of the sensor, particularly signal shifts due to the wavelength dependence of the Faraday effect or the electro-optic effect constant.
Abstract:
A conducting medium or high voltage cable can include at least one conductor surrounded by an insulating layer. One or more layers of conducting wires can surround the insulating layers, and the layers of conducting wires themselves can be separated by insulating layers. The centrally disposed conductor and surrounding circumferential conducting layers can include copper, aluminum, or a combination of both. The central conductor can range between about 1000 kcmil to about 4000 kcmil cross-sectional area, and the surrounding layers of conducting wires can be at least about 250 kcmil.