Results 21 to 30 of about 45,196 (330)

Simulation and Experiment Analysis of 10 kV Flexible Grounding Device

open access: yesInformation, 2021
The traditional 10 kV distribution network grounding system has some disadvantages, such as small grounding current and poor arc extinguishing effect, thus, hindering the detection of high-resistance grounding fault.
Mengxuan Liu, Chi Zhang, Kangli Liu
doaj   +1 more source

Transient Characteristics and Line Selection of Two-Point Grounding Faults on Same Phase in Resonant Grounding System

open access: yesZhongguo dianli, 2022
Aiming at the low accuracy problem in line selection of two-point grounding faults on same phase in distribution network, a new fault feeder identification method suitable for two-point grounding faults on same phase in resonant grounding systems is ...
Yingtong LIU   +3 more
doaj   +1 more source

Research on selective leakage protection of 10 kV system based on transient characteristic parameters in coal mine

open access: yesMeikuang Anquan, 2022
When a single-phase grounding fault occurs in the coal mine 10 kV power supply system, due to the low sampling frequency of the system, the traditional transient line selection method is easy to lose the “line selection information”, and is greatly ...
GUO Runshou, CAO Jiyuan
doaj   +1 more source

Fault location method combining transient mutation and dynamic time warping algorithm for grounding system

open access: yesEnergy Reports, 2023
In the urban distribution network, due to the wide application of underground cables, the traditional resonant grounding system has gradually been unable to match the increasing fault current amplitude, real-time compensation and harmonic component ...
Kangli Liu   +3 more
doaj   +1 more source

Single Pole-to-Ground Fault Location System for MMC-HVDC Transmission Lines Based on Active Pulse and CEEMDAN

open access: yesIEEE Access, 2021
To solve the problem of the location of the fault point of single-pole-to-ground faults in the transmission lines of MMC-HVDC systems, this paper designs a fault location system based on support vector machine (SVM).
Jian-Yu Wu   +3 more
doaj   +1 more source

Power frequency interference and suppression in measurement of power transmission tower grounding resistance [PDF]

open access: yes, 2014
“If you want peace, work for justice.” – Pope Paul VI This paper explores how the children’s right to be heard is implemented in the criminal proceedings in Romania and Norway.
Wenjun, Zhou   +7 more
core   +3 more sources

One-mode component-based fault section location method for mine high-voltage power network

open access: yesGong-kuang zidonghua, 2021
After a single-phase grounding fault occurs in the mine high-voltage power network, it is important to identify the fault section quickly for the safe and stable operation of the mine power network.
ZHAO Jianwen, CHEN Jiali
doaj   +1 more source

An equivalent circuit for the evaluation of cross-country fault currents in medium voltage (MV) distribution networks [PDF]

open access: yes, 2018
A Cross-Country Fault (CCF) is the simultaneous occurrence of a couple of Line-to-Ground Faults (LGFs), affecting different phases of same feeder or of two distinct ones, at different fault locations.
Gatta, Fabio Massimo   +3 more
core   +1 more source

Faulty Section Location Method Based on Dynamic Time Warping Distance in a Resonant Grounding System

open access: yesEnergies, 2022
When a single-phase grounding fault occurs in a resonant grounding system, the determination of the fault location remains a significant challenge due to the small fault current and the instability of the grounding arc.
Yu He   +6 more
doaj   +1 more source

A novel fault location method for a cross-bonded hv cable system based on sheath current monitoring [PDF]

open access: yes, 2018
In order to improve the practice in the operation and maintenance of high voltage (HV) cables, this paper proposes a fault location method based on the monitoring of cable sheath currents for use in cross-bonded HV cable systems.
Huang, Xiaojun   +6 more
core   +1 more source

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