Abstract: A communicating faulted circuit indicator (“FCI”) apparatus, as well as methods for using the apparatus. A sensor is configured to collect data relating to a state of an electrical conductor. A controller is logically coupled to the sensor and configured to receive the data collected by the sensor and to determine whether to communicate the collected data to a location remote from the FCI. A communications facility is logically coupled to the controller and configured to communicate the data to the remote location in response to the controller's determination to communicate the data to the remote location. The communications facility can include a cellular communications device. The remote location can comprise a cellular communications device. The remote location also can be a computer system configured to receive communications from the FCI.

Abstract: A method and apparatus are provided for detecting the occurrence of arcing of a conductor by monitoring the current on an AC power line.

Abstract: The present invention is concerned with a method for fault location in series compensated power transmission lines with two-end unsynchronized measurement, finding an application in the electrical power sector and for overhead uncompensated and series-compensated transmission lines.

Abstract: A distance relay apparatus, a distance relay processing system and a method for processing a distance relay are disclosed. In accordance with an embodiment of the present invention, the distance relay processing system, which controls a distance relay, includes a lightning managing apparatus, which generates comprehensive lightning information by using lightning detection information and in which the lightning detection information is provided by a lightning detector, and a distance relay apparatus, which generates fault occurrence information by determining a fault location of a power transmission line and generates fault analysis information by using the fault occurrence information and the comprehensive lightning information.

Abstract: A device for monitoring the structure of a vehicle, including an electric measurement sensor, a processing circuit connected to the sensor for converting the sensor measurements into monitoring data, and a transmitter for transmitting the monitoring data to a collecting member, wherein the processing circuit is miniaturised and has a small size so as to be contained within a cube measuring 40×40×40 mm or less, is connected to the sensor by a short wired electrical connection, the length of which measures less than 200 mm, includes an onboard battery, and includes a radio means for transmitting the monitoring data to a mobile collecting member temporarily located in the vicinity thereof.

Abstract: An apparatus is for a conductor capable of conducting a current. The apparatus includes a global positioning system device structured to determine location of the global positioning system device, a coupling device structured to couple the global positioning system device to the conductor, and a power supply structured to power the global positioning system device responsive to a current conducted by the conductor. The global positioning system device is further structured to wirelessly communicate the determined location when powered by the power supply responsive to the current conducted by the conductor. The global positioning system device does not wirelessly communicate when current is not conducted by the conductor.

Abstract: In a motor controller, in the case that occurrence of a failure of electric current flow is detected in any phase of a motor, a phase electric current command value changing in accordance with a secant curve or a cosecant curve with an asymptotic line at a predetermined rotation angle corresponding to the phase in which the failure of electric current flow has occurred is calculated. The calculated phase electric current command value is limited in such a manner as to become within a predetermined range. In the case that a rotation angle of the motor exists in a range in which the phase electric current command value is limited, the execution of an anomaly detection of a control system utilizing an electric current deviation of a d/q coordinate system is inhibited.

Abstract: Provided are an evaluation method and device of a test pattern which enable an appropriate evaluation in a reliability test with a simulation time reduced and high accuracy. It is assumed that each possible internal state of a cell determined at least by a logic value or a voltage value of an input terminal is a cell state, and each possible state of a transistor determined by a voltage between terminals of the transistor is a transistor state. The method comprises steps of: verifying operation of a semiconductor integrated circuit at a gate level or higher; acquiring an appearance cell state continuously appearing for a predetermined time or more in the operation verification; acquiring an appearance transistor state using the corresponding appearance cell state in the operation verification for each transistor; and calculating a test activity ratio of the transistor using the corresponding appearance transistor state for each transistor.

Abstract: The present invention relates to a method for determining location of faults in a wind power plant comprising a first plurality of wind turbines arranged in n groups, each group comprising mn wind turbines electrically arranged in series, each of the wind turbines having a fault detector and a timing device for recording a time of fault occurrence, all groups electrically connected via a bus bar. The method may comprise the steps of detecting a fault, obtaining a status indicator from each of the fault detectors and timing devices, evaluating time of fault occurrence for two wind turbines in each of the n groups to determine if the fault have occurred inside a group, evaluating if a fault is registered in the wind turbine closest to the bus bar in each group. Further the present invention relates to a wind park.

Abstract: This invention relates to a method for detecting and determining the position of faults using reflectometry in a wired electrical network comprising the following steps: inject a test signal into a cable in said network, retrieve a reflected signal on said cable, sample said reflected signal at a frequency Fe=1/Te, repeat the previous steps N times, where N is an integer number, for each injected test signal, retrieve n samples from the corresponding reflected signal, where n is an integer number, analyse M=n*N retrieved samples to detect and locate a fault in the wired electrical network. The method is characterised in that the retrieved samples are compared with an adaptive threshold defined for each diagnostic as a function of the test signal injected in the tested cable.

Abstract: A power line communication-based aircraft power distribution system may allow for both power line communication (PLC) technology and spread spectrum time domain reflectometry (SSTDR) technology to be utilized in aircraft power distribution systems to achieve key maintenance functions. Unlike conventional power distribution systems, which may, for example, use only SSTDR for fault detection, the present invention includes a hardware platform that may allow both the PLC and the SSTDR to be utilized in aircraft power distribution systems to achieve key maintenance functions, such as real time wire fault location, and cost and weight savings. Further, unlike conventional power distribution systems, which may only detect and locate damage in feeder conductor wire sections before the power is applied to the load, the power distribution system of the present invention may permit real time wire fault location.

Abstract: A test system and a failure parsing method. The test system may comprise a cell array including defective cells formed according to various failure causes, a test apparatus configured to measure electric characteristics from the defective cells and make the measured electric characteristics numerical, and a database apparatus configured to store the numerical electric characteristics. The failure parsing method may include forming defective cells to have at least one failure cause, measuring electric characteristics of each of the defective cells, storing the measured electric characteristics of each of the defective cells in a database, and judging failure causes of a failed chip of a semiconductor wafer based on the database.

Abstract: A method for detecting a defect in an electric link, which transmits, at a first moment, an electric signal having a predetermined propagation speed from an end of the electric link, and detects, at a second moment, reception of an echo of the electric signal. The method further establishes a model of the variation of the electric signal propagation speed in the electric link on the basis of the length of the link through which the signal flows, and estimates a first location of the defect based on the difference between the first and second moments, on the predetermined propagation speed at the start, and on the speed variation model in the link.

Abstract: Techniques are disclosed for computing distance-to-fault (DTF) in communication systems. The techniques can be embodied, for instance, in a DTF system that provides a multi-port probing device and DTF functionality, including computing distances to faults and the fault magnitudes. In addition, the DTF system is further configured with the ability to accurately measure complex reflection coefficient of the UUT, and/or return loss of the UUT. The complex reflection coefficient and/or return loss of the UUT can be computed as a function of known scattering parameters of a multi-port measurement circuit included in the probe of the DTF system.

Abstract: A fault location estimation system includes single-fault-assumed diagnostic unit nodes; error-observation node basis candidate classification unit; inclusion fault candidate group selection unit; inter-pattern overlapping unit; and multiple-fault simulation checking unit.

Abstract: A system for calculating a flow rate of a flow meter using multiple modes is provided according to an embodiment of the invention. The system for calculating a flow rate of a flow meter using multiple modes comprises a means for calibrating the flow meter for a number of desired modes. The system for calculating a flow rate of a flow meter using multiple modes includes a means for determining a density of a material flowing through the flow meter associated with each mode. The system for calculating a flow rate of a flow meter using multiple modes further includes a means for determining the flow rate effect on density for each desired mode. The system for calculating a flow rate of a flow meter using multiple modes a means for calculating a flow rate based on the density and flow rate effect on density values for each desired mode.

Abstract: System and method for detecting a fault in a faulty network element of a bus network comprising two or more transmitters. The method comprises transmitting from one of the transmitter a signal of predetermined parameters to the bus network; receiving the signal; and determining if the first signal is followed by a tail that is an echo indicative of a faulty network element. The location of the faulty network element can be determined by transmitting from a second transmitter a second signal of predetermined parameters to the bus network; the second signal and, determining if the second signal is followed by a second tail that is an echo indicative of the faulty network element; and if tails are detected, determining by an algorithm executer the location of the faulty network element by triangulation.

Abstract: A protection device for detecting electricity is composed of a control unit, a set of input ends for sampling, a display unit, an acoustic signal generating unit, and a power unit. The aforementioned control unit includes a microprocessor (CPU), a clock pulse wave generator, a first memory, a second memory, an input/output port, and a timer. The microprocessor processes defects in sampled electrical data, such as voltage and current, to display power consumed and accumulated time of use, such that a user can be aware of the electricity information at any time for preparation. The sampled data are compared with each setting value pre-stored in the second memory, and if any one of the data exceeds the setting value, the microprocessor will output a warning signal or shut down the power, to maintain safety.

Abstract: There are provided a signal detection process that derives coordinates in a device coordinate system in analysis data for abnormal signal data included in the analysis data of a semiconductor integrated circuit obtained from a semiconductor inspection apparatus; a coordinate conversion process that derives a correspondence between a coordinate in the device coordinate system and a coordinate in a design coordinate system in the design data of the semiconductor integrated circuit for a plurality of reference points in the semiconductor integrated circuit, and that derives a coordinate conversion formula between the device coordinate system and the design coordinate system; an error calculation process that derives a position error between a coordinate in the device coordinate system converted by the coordinate conversion formula and a coordinate in the design coordinate system; and a circuit extraction process that extracts a circuit related to the abnormal signal in the design data based on the coordinates of

Abstract: Some embodiments of the present invention provide a system that generates a simulated vibration pattern in a computer subsystem. During operation, a vibration pattern is monitored at a location in the computer subsystem, wherein the vibration pattern is monitored while the computer subsystem is incorporated into the computer system and the computer system is operating. Then, the vibrations of the computer subsystem are mimicked by generating the simulated vibration pattern at the same location in the computer subsystem based on the monitored vibration pattern.

Abstract: The present invention relates to a method for determining location of faults in a wind power plant comprising a first plurality of wind turbines arranged in n groups, each group comprising mn wind turbines electrically arranged in series, each of the wind turbines having a fault detector and a timing device for recording a time of fault occurrence, all groups electrically connected via a bus bar. The method may comprise the steps of detecting a fault, obtaining a status indicator from each of the fault detectors and timing devices, evaluating time of fault occurrence for two wind turbines in each of the n groups to determine if the fault have occurred inside a group, evaluating if a fault is registered in the wind turbine closest to the bus bar in each group. Further the present invention relates to a wind park.

Abstract: A system and method to range a distance to a source of CPD on a two-way cable system, comprises a fixed CW signal injected into a downstream signal path, a swept signal transmitted from a network analyzer, a mixer for generating an up-converted swept signal, and a source of CPD in the two-way cable system that mixes the fixed CW signal and the swept signal to create an upstream swept signal. The network analyzer receives the upstream swept signal and determines a complex frequency response created by the source of CPD. An impulse response is determined from the complex frequency response, and the distance to the source of CPD is determined from the impulse response.

Abstract: A system (400) and method for controlling an operation of an electrical power network (420) is described. The method includes configuring an allowable performance of an electrical power network over a predetermined time period as a probability expression comprising a historical term and a future term having an electrical power network operating condition variable. The method also includes calculating a network performance target value (300) according to the probability expression by using a historical electrical power network operating condition value for the electrical power network operating condition variable. The method further includes using the performance target value for controlling the electrical power network effective to achieve the allowable performance. The system includes a database (406), a processor (404) coupled to the database, and a monitoring and control module (410) coupled to the processor.

Abstract: A method for identifying an approximate fault location in a power transmission line comprises detecting first and second dominant frequencies in first and second recovering voltages resulting from the fault without using the velocity of either of the recovering voltages.

Abstract: An arc monitor system locates an arc based on optimal frames from a frame obtained before an arc discharge to a frame obtained immediately after the arc discharge. The arc monitor system, used to locate an occurred place of an arc discharge that occurred in an electric facility, includes multiple monitor cameras arranged at multiple places in the electric facility, an image processing device that processes images received from the respective monitor cameras, a control logic section that controls the image processing device, and an operation device that includes a display section and an operation section and is connected to the control logic section. The image processing device and the control logic section extract a change in the images received from the monitor cameras in response to a control signal generated from the electric facility on an occurrence of the arc discharge, and then locate an occurred place of the arc discharge.

Abstract: A diagnostic method for determining deformations in a transformer winding comprising the steps of representing the winding as a lumped parameter circuit and dividing the winding into at least two sections; generating a first set of fingerprint values based on capacitive values of the winding; the first set of finger print values indicating the location and extent of radial deformation in the winding; generating a second set of fingerprint values based on capacitive values of the winding; the second set of finger prints indicating the location and extent of axial deformation in the winding and determining the location and extent of radial or axial deformation or combination of both radial and axial deformation in the winding by comparing the measured values with the first set and second set of finger print values.

Abstract: The invention relates to a method and a device for analyzing electric cable networks in order to detect and locate defects in the cables comprising at least one branch connection from which N secondary sections extend. The method involves injecting into the network, at a plurality of injection points E, pseudo-random sequences of digital signals PNi(t) that are de-correlated from each other, and collecting, at one or more observation points Sj, composite time signals Rj(t) generated by the circulation of the output sequences and the reflections thereof in the impedance discontinuities of the network. The correlation between the composite signals and the time-offset pseudo-random sequences is then computed, and the positions of correlation peaks are sought to deduce therefrom the positions of defects in the network by taking into account the signal propagation speed in the network.

Abstract: A design structure embodied in a machine readable medium used in a design process includes an apparatus for testing logic devices configured across asynchronous clock domains, including a deactivation mechanism for deactivating, during at-speed fault testing, a local clock signal for each of a first plurality of latches having at least one data input thereto originating from a source located within an asynchronous clock domain with respect thereto; wherein the deactivation mechanism is configured to permit data capture within the first plurality of latches, and wherein the deactivation mechanism is further configured to permit at-speed data launch from the first plurality of latches to downstream latches with respect thereto during at-speed testing.

Abstract: Systems and methods for designing and controlling distributed generation resources are disclosed. Monolithic or distributed controllers control the power requests sent to each distributed generation resource to achieve optimal efficiency using rule-based and/or fuzzy logic-based control techniques. High-impedance fault (HIF) detection circuitry allows power export to the utility grid in normal operating circumstances, and when an islanding condition is detected, ceases that export within two seconds and prevents further export until the condition is cleared.

Abstract: Systems and methods for detecting ground fault at the common DC bus in a high impedance ground system. A fault detection component can detect characteristics of an electrical signal including phase number (n) and fundamental frequency (H). A fast Fourier transform is performed at (n×H) and (2n×H), and the two values are compared. A healthy system (no ground fault) can display a large difference between (n×H) and (2n×H), while in an unhealthy system the difference can be minimal. A system and method of detecting variable phase number and fundamental frequency can be used in the calculation to perform the ground fault detection when these characteristics are variable.

Abstract: A method and apparatus for intelligent battery safety management. Some embodiments of a method for managing battery operation may include receiving a battery pack in a device, where the battery pack is rechargeable and includes a battery cell. In some embodiments data may be collected regarding the operation of the battery cell in the device, and the collected data may be compared with a set of battery reference data. In some embodiments a determination may be made whether the battery cell is non-authentic or defective based at least in part on the comparison between the collected data and the battery reference data.

Abstract: A testing method includes: storing QC data for each of electronic device manufacturing processes in a storage unit; changing the QC data for each of the processes to a common fixed form of data; providing a contour for the QC data for each of the processes using the common fixed form of data; comparing a singularity map to a failure generation map for a completed device; and finding a causal process for a failure and a defect through the comparison.

Abstract: An apparatus for monitoring and measuring the electrical, thermal and mechanical operating parameters of high voltage power conductors. A toroidal shaped housing, which can be mounted onto an energized conductor, contains all of the necessary electrical instruments to monitor the parameters associated with the conductor. Moreover, the housing includes the processing capability to analyze disturbance and fault events based on these parameters.

Abstract: A method for detecting a ground fault in an electrical supply system includes using a combination of components and their connections within the supply system to form virtual components, allowing presetting of fault indicators for incoming and outgoing supply lines to individual components. A fault index can be determined for each virtual component in conjunction with a respective association of a correlation coefficient with fault indicators and a subsequent normalization over all fault indicators using a correlation coefficient. Comparison of the indices of all virtual components of the supply system permits a determination of that virtual component in which the highest fault index occurs, and therefore in which there is the highest probability of a fault. The fault search in a supply system can therefore be determined quickly and easily independently of power supply system geometry and configuration. An apparatus performing the method and computer program product, are also provided.

Abstract: There is provided an inspection system capable of easily performing inspection of a radio section under an actual environment and enabling a user to easily identify a trouble. In this system, an analysis/display device (400) analyzes the data outputted from an inspection device (200, 300) and extracts a radio parameter. By using the radio parameter extracted from the data obtained by inspection of a cabled section, an inspection device (100) inspects the state of radio communication between a communication terminal device (50) and abase station device (150). The analysis/display device (400) aligns the cabled message and the radio message obtained by analyzing the data outputted from the inspection devices (100, 200, 300) in time series or in sequence of calls and displays them.

Abstract: Techniques are disclosed for determining the likelihood that a known feature in an integrated circuit design will cause a defect during the manufacturing process. According to some of these techniques, various logical units that incorporate an identified design feature are identified, and the amount that the design feature occurs in each of a plurality of these logical units is determined. The failure rate of integrated circuit portions corresponding to at least these logical units are then obtained. A feature failure coefficient indicating the likelihood that the feature will cause a defect then is determined by correlating the failure rates with the amount of occurrences of the feature.

Abstract: 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 generates corresponding output data (276). In one implementation, the cable fault detection component (168) is implemented as a software module which operates on a computer (105) of a substation intelligence system (104).

Abstract: The present invention discloses a method and an apparatus for improving measurement fault detection in a sequential measurement processing estimator, and is particularly applied to Global Positioning Receivers.

Abstract: According to exemplary methods and systems of the present principles, the location of defective field repairable units (FRUS) of a circuit that have varying sizes or varying numbers of scan cells may be identified by employing tiles including scan cells from different FRUS. A set of test patterns may be scanned through the scan cells such that cells belonging to FRUs within a tile may be concealed while analyzing the response of scan cells in the tile contributed by a different FRU. Further, defective tiles are discoverable at any tile location and in any quantity within a maximal capacity using a compressed signature. In addition, signature registers that process data at a rate that is faster than the scan shift rate of the circuit may be employed during compression to multiply a circuit response by a plurality of components of a compression matrix during one scan shift cycle.

Abstract: The invention relates to a measuring device, in particular a temperature measuring transducer, comprising an electrical resistor, which alters its value based on a chemical or physical variable that is to be measured and which is connected to an evaluation device via at least three lines. Said evaluation device checks the lines for line breaks and if such a break has occurred, switches from a four-wire circuit to a three- or two-wire circuit as required, in order to permit the continuation of the measuring operation. This improves the reliability of the measuring device.

Abstract: A brown out detection circuit includes a sense amplifier for sensing a current level exhibited by a flash cell. Combinatorial logic is coupled to the sense amplifier for identifying a program condition of the flash cell based on the sensed current level, including a brown out condition, in order to provide a warning to avoid potential malfunction from a brown out condition.

Abstract: Disclosed is a UHF partial discharge and its location measuring device for high-voltage power devices. The measuring device includes a partial discharge sensor, an external noise sensor, an analogue-digital converter, a peak detector, a partial discharge signal processor, an arrival time detector, a discharge location processor, and a display unit.

Abstract: Methods and systems for the integration of models and accurate predictions to score the circuit design, which translates to a more accurate and less complex yield prediction. In the present inventive approach, the computer-implemented methods and systems use at least one processor that is configured for performing at least predicting a physical realization of a layout design based at least in part on one or more model parameters, determining one or more hotspots associated with the layout design, determining a score for each of the one or more hotspots associated with the layout design, and categorizing the one or more hotspots according to at least the score in some embodiments. In some embodiments, the methods or the systems further use at least one processor for the act of determining one or more hotspots by using at least the design intent or the manufacturing information.

Abstract: A method and system to detect and evaluate improper grounding/grounded bonds in an electrical power system is disclosed. An example method is detecting improper grounding in an electrical power system having a plurality of monitoring devices coupled to a grounded conductor and a grounding conductor. Data of the voltage between the grounded conductor and the grounding conductor is received from the plurality of monitoring devices. The spatial orientation of the data from the plurality of monitoring devices is determined within a hierarchy of the electrical power system. The voltage data received from the plurality of monitoring devices is compared to determine a bond (or lack of a bond) between the grounded conductor and the grounding conductor.

Abstract: A computer implemented method, apparatus, and computer usable program product for illuminating faults in a wiring system. The wiring system is monitored for a fault during operation of the wiring system. In response to detecting the fault, a location of the fault within the wiring system is estimated. A wiring diagram is presented for the wiring system with an indication of the location of the fault within the wiring system.

Abstract: The intruder detection device for deciding the occurrence of an invasion if an electric wave, which is received by a leakage transfer passage on the receiving side juxtaposed to a leakage transfer passage on the transmitting side for receiving a leakage electric wave from the transmitting leakage transfer passage, changes, and the intruder detection device comprises: a plurality of reference spectrum diffusion signal generating means; a plurality of correlating means configured together with the reference spectrum diffusion signal generating means on a common sensor card, for collating the output reference spectrum diffusion signal of the reference spectrum diffusion signal generating means with the received signal from the receiving leakage transfer passage; and setting means for adjusting the detection precision which is determined by the reference spectrum diffusion signal generating means and the correlating means.

Abstract: 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 self-clearing cable fault and generates corresponding output data (276). In one implementation, the cable fault detection component (168) is implemented as a software module which operates on a computer (105) of a substation intelligence system (104).

Abstract: A method, apparatus, and computer program product are presented for automatically evaluating Bayesian network models. Operations performed comprise receiving a Bayesian Network (BN) model including evidence nodes and conclusion nodes that are linked with the evidence nodes by causal dependency links, and where the evidence nodes have evidence states and the conclusion nodes have conclusion states. The states of conclusion nodes are set to desired conclusion states and corresponding probabilities of occurrence of evidence states are determined by propagating these states down the causal dependency links. Thus, samples of most likely states of the evidence nodes are generated. Then, states of the evidence nodes are set corresponding to the samples of the evidence states. These states are propagated back up the causal dependency links to obtain probabilities of the resulting states of the conclusion nodes. Finally, a representation is outputted for the probabilities of the states of the conclusion nodes.

Abstract: A detector for detecting a state of an electrical storage device includes capacitor blocks formed of a capacitor-voltage equalizing circuit and a capacitor-voltage detecting circuit both coupled to respective capacitors, and a capacitor-block state outputting circuit outputting states of the capacitors by using the signals supplied from the capacitor-voltage detecting circuits. The signals from the capacitor-voltage detecting circuits are transmitted via an optical switch, which works as an electrical indirect coupler, to the capacitor-block state outputting circuit. This structure allows isolating high-voltage oriented wirings completely from signal oriented wirings, so that high reliability can be ensured.

Abstract: A method and device for testing an electric circuit, wherein exhaustive electric circuit modulation is not required yet circuit errors can be recognized in a reliable manner is provided. A marking signal is produced, indicating a predefined circuit state that might occur in specific components of an electric circuit, wherein a transformed network list is formed from an original network list describing the circuit, whereby all electric components of at least one predefined component group, with regard to a respective connection pair, are treated as short-circuited, all network nodes connected by one or several components that are to be treated as short-circuited are respectively combined to form an equivalence category, wherein respectively all states of the associated network nodes are assigned to each equivalence category, it is possible to determine whether and in which components the predefined circuit state can occur by taking into account the equivalence categories.