Results 11 to 20 of about 978,622 (297)

A new method for single‐phase high resistance grounding fault protection in low resistance grounded distribution networks

Engineering Reports, 2023
The neutral point of the distribution network is grounded with low resistance, which can quickly remove single‐phase grounding fault and effectively suppress overvoltage. However, the existing zero‐sequence overcurrent protection has a high setting value.
Gang Wang, Liyi Wang
doaj   +3 more sources

Fault Location of Generator Stator with Single-Phase High-Resistance Grounding Fault Based on Signal Injection. [PDF]

Sensors (Basel)
This paper proposes a novel method for locating single-phase grounding faults in generator stator windings with high resistance, which are typically challenging to locate due to weak fault characteristics.
Lei B, Wang Y, Yang Z, Ma L, Yang X, Guo Y, Xu S, Cheng Z.   +7 more
europepmc   +2 more sources

Method for identifying high-resistance grounding fault section in single-neutral-point low-resistance grounding active distribution networks

International Journal of Electrical Power & Energy Systems
The paper focuses on single-neutral-point low-resistance grounding (SNP-LRG) active distribution networks (ADNs) where the distribution system adopts the low-resistance grounding mode, and distributed generation (DG) grid-connected transformers adopt the
Jing Zhang, Botong Li, Fahui Chen, Bin Li   +3 more
doaj   +2 more sources

A Capacitance-to-Ground Measuring Method for Medium-Voltage Power Grid of a Ship Based on the Combination of High and Low Frequencies [PDF]

Sensors
With the increase in capacity of large ship electric power systems, medium-voltage electric power systems have gradually become an inevitable choice. Among China’s large ships, the neutral point of the power system is usually grounded by high resistance,
Shuai Wang, Liang Chen, Zhikang Li, Zhenghe Zhao   +3 more
doaj   +2 more sources

Fault Handling and Localization Strategy Based on Waveform Characteristics Recognition with Coordination of Peterson Coil and Resistance Grounding Method

Energies
To address challenges in locating high-impedance grounding faults (HIGFs) and isolating fault areas in resonant grounding systems, this paper proposes a novel fault identification method based on coordinating a Peterson coil and a resistance grounding ...
Zhengyang Li, Yijia Cao, Chun Chen, Yansha Li, Jinglu Li   +4 more
doaj   +2 more sources

Application of Low Voltage High Resistance Grounding in Nuclear Power Plants

Nuclear Engineering and Technology, 2016
Most nuclear power plants now utilize solid grounded low voltage systems. For safety and reliability reasons, the low voltage (LV) high resistance grounding (HRG) system is also increasingly used in the pulp and paper, petroleum and chemical, and ...
Choong-Koo Chang, Mostafa Ahmed Fouad Hassan   +1 more
doaj   +2 more sources

Simulation and Experiment Analysis of 10 kV Flexible Grounding Device

Information, 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

Measurement of resistance temperature characteristics of graphite based flexible grounding body with current heating voltammetry

Xi'an Gongcheng Daxue xuebao, 2022
The resistance temperature characteristics and thermal stability of graphite based flexible grounding materials were studied. With the method of current heating and constant temperature protection, the resistance of grounding body at each temperature was
HU Songjiang, CHEN Sifu, LIU Liqin, LI Fulei, DING Weidong, WANG Yang, CAO Wen   +6 more
doaj   +1 more source

Potentials' distribution in high resistivity soil around extended grounding electrodes [PDF]

Vestnik MGTU, 2016
The potential distribution in high resistivity soil around extended grounding electrodes has been described in the paper. The high-voltage polygon has been developed for experimental investigation.
Ivonin V. V.
doaj   +1 more source

Research on stray current characteristics of auxiliary grounding grid of incoming line tower of mine substatio

Gong-kuang zidonghua, 2020
In view of problems of limited terrain, short effective dispersion length, and low resistance reduction efficiency in the extensional resistance reduction of the grounding grid of incoming line section of mine substation, a resistance reduction method ...
XIE Hongping, LIAN Xuesen, HUANG Tao, DU Changqing, CHEN Yong, LIU Liang   +5 more
doaj   +1 more source