distribution high impedance faults
DETECTION OF HIGH IMPEDANCE FAULTS IN DISTRIBUTION FEEDERS - K-NEAREST NEIGHBOR METHOD
... High-impedance faults (HIFs) caused by downed conductors in electric power systems are in general difficult to be detected using traditional protection relays due to small fault ...in ...
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FUZZY LOGIC TECHNIQUE FOR HIGH IMPEDANCE FAULT DETECTION IN DISTRIBUTION FEEDER
... The proposed new technique for HIF detection using Wavelet Transform and Fuzzy Logic.The simulation results of the developed HIF model, incorporated in MATLAB. Wavelet and Fuzzy Logic analysis for HIF, faults, ...
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Title: A NEW GENERIC SEARCHING ALGORITHM FOR HIGH FAULT IMPEDANCE DETECTION IN TELEPHONE SYSTEM NETWORK
... the high impedance fault occurring on radial distribution system using a new generic search ...nonlinear high impedance faults by taking the feature vector as input value of ...
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High frequency impedance based fault location in distribution system with DGs
... large distribution system (especially the one with a large number of connection nodes), locating a fault from single-ended measurement is ...the distribution systems. Instead of the impedance ...
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High frequency impedance based fault location in distribution system with DGs
... large distribution systems. Unlike the conventional impedance based methods, the relationships between the chang- es of the system impedance (caused by different faults) and the changes of the ...
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High Impedance Fault Detection of Distribution Network by Phasor Measurement Units
... It is worthy to note that high-frequency transients will be removed from PMU inputs by the filtering stage. What remains important for our consideration is the ef- fect of step changes in voltages and currents ...
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Fast fault location scheme for distribution systems based on fault transients
... end impedance based fault locator has been ...the high frequency components generated by the ...locate faults along ...phase faults at different fault resistance values and fault inception ...
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Fault Cause Identification and High Impedance Fault Detection in Distribution Feeders.
... Since conventional protective devices do not operate during High Impedance Faults, it is difficult to obtain real data related to HIFs. In order to carry out the analysis, a Simulink model was ...
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Wavelet based and database approach for locating faulty section of high impedance fault in a distribution system
... High impedance fault (HIF) is a phenomenon when there is an undesirable electrical contact between a conductor and non-conducting or poor conductivity object or ...touches high impedance ...
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Implementation of Neural Network for High Impedance Fault Detection
... High Impedance faults are safety hazard to Humans, Live stocks and Electric Utility ...of high impedance arc-type faults led during the last two decades to important progress in ...
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High impedance earth fault modelling
... (S.W.E.R) Distribution networks were installed by Electrical Distribution entities to distribute power to customers who are remote from Zone Substations and have a low energy ...typical distribution ...
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Arcing High Impedance Fault Detection Using Real Coded Genetic Algorithm
... isolate faults can influence the safety and reliability of such ...the high voltage feeders in distribution ...cause high-impedance faults in overhead distribution ...
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Evaluating the activation of auto recloser relays in power distribution grid of Masjed Soleiman City
... Currently, distribution in the mentioned stations is in off state due to the instability of the electricity distribution ...power distribution grid of Masjed Soleiman City, which is in off ...power ...
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Study on the characteristics of fault in PuTaohua oil layer of GuLong Oilfield
... tectonic faults have the characteristics ofpower-law distribution, performance for the scale invariant characteristics, that is self-similar, but there are also non power law distribution ...
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Marine power distribution system fault location using a portable injection unit
... exposed distribution cables it is difficult to remove or restore the faulted line sections without accurately knowing the fault ...on impedance estimation [14]-[20] and based on traveling waves ...system ...
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An islanding detection method for multi DG systems based on high frequency impedance estimation
... of the inherent system voltage which is viewed as a noise component and the voltage response to the injected current. Because of a short injection duration (0.1ms) and a small data capturing window, the proposed method ...
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Dual control of fault intersections on stop start rupture in the 2016 Central Italy seismic sequence
... Fig. 7. Aftershock patterns bounding major episodes of slip on the Vettore–Laga fault system. (a) Aftershocks after the Amatrice earthquake but before the Visso earthquake (from Chiaraluce et al., 2017), projected along ...
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1600 faults in 100 projects: automatically finding faults while achieving high coverage with EvoSuite
... triggering faults, while producing representative test sets for any chosen coverage ...real faults in the 100 open source ...actual faults, but these are buried within many failures that are caused ...
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Theory and Applications of High Impedance Wires
... Abstract—This paper presents the theory, properties, types, and applications of high impedance wires (HIWs). The effective permeability of a transmission line that consists of an HIW and a second conductor ...
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Defining a 3-dimensional trishear parameter space to understand the temporal evolution of fault propagation folds
... the parameter space, the trishear models associated with high angle reverse faults,... which are not well-described by the clusters, may correspond to the steep faults de-.[r] ...
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