Results 11 to 20 of about 45,196 (330)
A new method for single‐phase high resistance grounding fault protection in low resistance grounded distribution networks [PDF]
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 +4 more sources
High-Resistance Grounding Fault Detection and Line Selection in Resonant Grounding Distribution Network [PDF]
Electronics (Switzerland), 2023 The detection and selection of fault lines in resonant grounding distribution networks pose challenges due to the lack of sufficient state parameters and data. This paper proposes an approach to overcome these limitations by reconstructing the initial criterion for fault occurrence and fault line selection.
Baopeng Lu
exaly +3 more sources
International Journal of Electrical Power & Energy SystemsThe 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 +3 more
doaj +5 more sources
Fault Location of Generator Stator with Single-Phase High-Resistance Grounding Fault Based on Signal Injection [PDF]
SensorsThis 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. The method utilizes an active voltage injection technique combined with traveling wave reflection analysis, singular value decomposition (SVD ...
Lei, Binghui +7 more
europepmc +5 more sources
High-resistance Grounding Fault Detector by Use of Feeding Current
Quarterly Report of RTRI (Railway Technical Research Institute) (Japan), 2008 The detection of high-resistance grounding faults in DC electric railways is difficult due to the impossibility of distinguishing fault current from load current in such systems. We therefore propose a new detection method to distinguish fault current from load current using the total feeding current of two substations. The technique takes advantage of
Takashi Kimura
exaly +4 more sources
Analysis and Modeling of Physical Evolution Mechanism for High-Resistance to Low-Resistance Grounding Faults in 10 kV Cable Joints [PDF]
EnergiesCurrently, the lack of analysis and applicable circuit models for the evolution of cable joint faults is responsible for explosions or fire accidents in the distribution network system.
Yifeng Zhao +6 more
doaj +2 more sources
An evidence theory based multiple model fusion method for fault diagnosis of distribution line [PDF]
Scientific ReportsThe advancement of distribution line fault diagnosis technology can significantly enhance fault handling efficiency and accuracy, reducing the impact on the power system and ensuring a reliable power supply.
Wanglong Wan +5 more
doaj +2 more sources
Zhongguo dianliAiming at the problems of fault perception and identification in high resistance grounding fault of distribution network, a high resistance grounding fault perception method for parameter-asymmetric distribution network based on damping rate variation is
Penghui YANG +5 more
doaj +2 more sources