Journal ArticleDOI
Optimal Frequency Value to Detect Low Current Faults Superposing Voltage Tones
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In this article, a method based on superposing voltage tones has been proposed to detect single phase to ground low current faults (LCF), which is difficult to be detected with common fault detection techniques.Abstract:
Single phase to ground low current faults (LCF) are difficult to be detected with common fault detection techniques. Therefore, several specific methodologies have been developed to identify LCF in an easier way. Among these methodologies, a method based on superposing voltage tones has been proposed. This method requires defining the frequency of the tones that have to be superimposed.read more
Citations
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High impedance fault detection methodology using wavelet transform and artificial neural networks
TL;DR: In this paper, a new technique based on the combination of wavelet transform (WT) and ANNs for addressing the problem of high impedance faults (HIFs) detection in electrical distribution feeders is presented.
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Detection and Location of High Impedance Faults in Multiconductor Overhead Distribution Lines Using Power Line Communication Devices
TL;DR: The method to achieve detection and location of high impedance faults (HIFs) in multiconductor overhead distribution networks utilizing power line communication (PLC) devices is extended, and the method is evaluated and validated in various simulation test cases concerning its ability to effectively detect and locate HIFs.
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Application of Narrowband Power-Line Communication in Medium-Voltage Smart Distribution Grids
Theofilos A. Papadopoulos,Christos G. Kaloudas,Andreas I. Chrysochos,Grigoris K. Papagiannis +3 more
TL;DR: In this article, the authors investigated the application of narrowband PLC in smart distribution grids, starting from a historical overview on the accomplished technological progress and continuing with a comparison of the advantages and drawbacks of PLC technology to other smart-grid communication solutions.
Journal ArticleDOI
Enhanced Protection Scheme for Smart Grids Using Power Line Communications Techniques—Part I: Detection of High Impedance Fault Occurrence
TL;DR: The proposed method is applied to single branch topologies, as well as to an existing topology of a Greek rural distribution system, and it is shown that the implementation of the proposed method may be drastically simplified by focusing on the monitoring of specific frequencies rather than the entire frequency range under study.
Journal ArticleDOI
High impedance fault protection in transmission lines using a WPT-based algorithm
Arash Mahari,Heresh Seyedi +1 more
TL;DR: In this paper, the authors proposed a new algorithm for high impedance fault (HIF) protection in high voltage transmission lines, with the aid of Wavelet Packet Transform (WPT).
References
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A solution to remote detection of illegal electricity usage via power line communications
TL;DR: In this paper, a prototype of the detector system for illegal electricity usage using the power lines is described, where the second digitally energy meter chip is used and the value of energy is stored.
Journal ArticleDOI
New Method for Detecting Low Current Faults in Electrical Distribution Systems
TL;DR: In this paper, a new methodology based on the superposition of voltage signals of a certain frequency was proposed for the detection of low current single phase faults in radial distribution systems, which can be used for any type of grounding method.
Journal ArticleDOI
Frequency-dependent transmission line modeling utilizing transposed conditions
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Phase-domain multiphase transmission line models
TL;DR: Two line models that circumvent this problem by writing the propagation functions directly in the phase domain and thus avoid the use of modal transformation matrices are presented, both of which are full frequency dependent distributed parameter models based on idempotent decomposition.
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Verifying resonant grounding in distribution systems
TL;DR: In this article, Zamora et al. proposed a method of improving power quality by using resonant grounding whereby the compensatory effect of the coil minimizes the fault current and allows service to be maintained during a fault.