Results 21 to 30 of about 288,989 (348)

A Combined Method for Line Selection of Single Phase to Ground Fault in Compensated Distributions Based on Evidence Theory

open access: yesIEEE Access, 2023
In order to improve reliability of distributions, the neutrals are usually insulated or compensated with Peterson coil. Thus, the currents of single-phase to ground fault are weak, leading to difficulty in fault line selection problem.
Jie Sun   +5 more
semanticscholar   +1 more source

Characteristic Quantity Analysis of Single-Phase Contact Tree Ground Fault of Distribution Network Overhead Lines

open access: yesEnergies, 2023
When the overhead line passes through the forest area, the conductor may contact the line to induce the tree-contact single-phase-to-ground fault (TSF), and the persistence of TSF may induce wildfires, bringing serious consequences.
Jianbo He   +6 more
doaj   +1 more source

A novel superimposed voltage energy‐based approach for single phase to ground fault detection and location in distribution networks

open access: yesIET Generation, Transmission & Distribution, 2023
The structure complexity and the extended geographical area are among the factors that create challenges in accurate fault location and detection in distribution networks.
Sajjad Miralizadeh Jalalt   +3 more
semanticscholar   +1 more source

A double end fault location technique for distribution systems based on fault-generated transients [PDF]

open access: yes, 2017
This paper presents a fault location technique for distribution systems. It is a two end impedance based technique that uses the fault generated transients to estimate the fault distance over a broad range of frequencies.
Aboshady, F.M.   +2 more
core   +1 more source

STUDI ANALISA KOORDINASI RELAI GFR INCOMING BUSBAR 20 KV DAN GFR SALURAN UNTUK MENGAMANKAN GANGGUAN SATU PHASA KETANAH DI TRANSFORMATOR 3 GARDU INDUK KAPAL

open access: yesMajalah Ilmiah Teknologi Elektro, 2017
Disruption of the distribution system is generally caused by a short circuit that causes overcurrent, one single phase short circuit to ground. Single phase to ground disturbances that occurred at the feeder should be secured by a ground fault relays in ...
I Gede Krisnayoga Kusuma   +2 more
doaj   +1 more source

An improved natural frequency based transmission line fault location method with full utilization of frequency spectrum information

open access: yesIET Generation, Transmission & Distribution, 2021
An improved natural frequency based method is proposed to accurately locate faults in transmission lines. The method only requires three phase instantaneous current measurements at the local terminal of the line and is compatible with protective relays ...
Yuan Nie, Yu Liu, Dayou Lu, Binglin Wang
doaj   +1 more source

The use of phase voltage modules to select the damaged phase in case of single-phase earth faults [PDF]

open access: yesОмский научный вестник, 2023
In case of short circuits, the selection of damaged phases always precedes the determination of the damage location. To select the damaged phase, filter selector of the damaged phase are widely used, using symmetrical components of phase currents.
V. A. Shabanov, A. V. Sorokin
doaj   +1 more source

Low-Resolution Fault Localization Using Phasor Measurement Units with Community Detection [PDF]

open access: yes, 2018
A significant portion of the literature on fault localization assumes (more or less explicitly) that there are sufficient reliable measurements to guarantee that the system is observable. While several heuristics exist to break the observability barrier,
Jamei, Mahdi   +2 more
core   +2 more sources

Time Estimation Algorithm of Single-Phase-to-Ground Fault Based on Two-Step Dimensionality Reduction

open access: yesEnergies, 2023
The fault detection time identified by relying on the over-voltage criterion of zero-sequence voltage often lags behind the actual occurrence time of ground faults, which may cause fault protection methods based on transient quantity principles to miss ...
Xin Lin   +3 more
doaj   +1 more source

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